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QUESTION 11
Which two commands will display the current IP address and basic Layer 1 and 2 status of an interface? (Choose two.)
A. router#show version
B. router#show ip interface
C. router#show protocols
D. router#show controllers
E. router#show running-config
Correct Answer: CD
QUESTION 12
An administrator is in the process of changing the configuration of a router. What command will allow the administrator to check the changes that have been made prior to saving the new configuration?
A. Router# show startup-config
B. Router# show current-config
C. Router# show running-config
D. Router# show memory
E. Router# show flash
F. Router# show processes
Correct Answer: C
QUESTION 13
On a live network, which commands will verify the operational status of router interfaces? (Choose two.)
A. Router# show interfaces
B. Router# show ip protocols
C. Router# debug interface
D. Router# show ip interface brief
E. Router# show start
Correct Answer: AD
QUESTION 14
Which router command will configure an interface with the IP address 10.10.80.1/19?
A. router(config-if)# ip address 10.10.80.1/19
B. router(config-if)# ip address 10.10.80.1 255.255.0.0
C. router(config-if)# ip address 10.10.80.1 255.255.255.0
D. router(config-if)# ip address 10.10.80.1 255.255.224.0
E. router(config-if)# ip address 10.10.80.1 255.255.240.0
F. router(config-if)# ip address 10.10.80.1 255.255.255.240
Correct Answer: D
QUESTION 15
Refer to the exhibit. If the resume command is entered after the sequence that is shown in the exhibit, which router prompt will be displayed?

A. Router1>
B. Router1#
C. Router2>
D. Router2#
Correct Answer: C
QUESTION 16
Refer to the exhibit. Which default gateway address should be assigned to HostA?

A. 192.168.1.1
B. 192.168.1.65
C. 192.168.1.66
D. 192.168.1.129
E. 10.1.1.1
F. 10.1.1.2
Correct Answer: B

IP Services QUESTION 1
What is the best practice when assigning IP addresses in a small office of six hosts?
A. Use a DHCP server that is located at the headquarters.
B. Use a DHCP server that is located at the branch office.
C. Assign the addresses by using the local CDP protocol.
D. Assign the addresses statically on each node.
Correct Answer: D QUESTION 2

A.
B.
C.
D.

Correct Answer:
QUESTION 3

A.
B.
C.
D.
Correct Answer:
QUESTION 4

A.
B.
C.
D.

Correct Answer: QUESTION 5
In the configuration of NAT, what does the keyword overload signify?
A. When bandwidth is insufficient, some hosts will not be allowed to access network translation.
B. The pool of IP addresses has been exhausted.
C. Multiple internal hosts will use one IP address to access external network resources.
D. If the number of available IP addresses is exceeded, excess traffic will use the specified address pool.

Correct Answer: C QUESTION 6
What happens when computers on a private network attempt to connect to the Internet through a Cisco router running PAT?
A. The router uses the same IP address but a different TCP source port number for each connection.
B. An IP address is assigned based on the priority of the computer requesting the connection.
C. The router selects an address from a pool of one-to-one address mappings held in the lookup table.
D. The router assigns a unique IP address from a pool of legally registered addresses for the duration of the connection.

Correct Answer: A QUESTION 7
When configuring NAT, the Internet interface is considered to be what?
A. local
B. inside
C. global
D. outside

Correct Answer: D QUESTION 8
The ip helper-address command does what?
A. assigns an IP address to a host
B. resolves an IP address from a DNS server
C. relays a DHCP request across networks
D. resolves an IP address overlapping issue Correct Answer: C

Network Device Security
QUESTION 1
Refer to the exhibit. The network administrator made the entries that are shown and then saved the configuration. From a console connection, what password or password sequence is required for the administrator to access privileged mode on Router1?

A. cisco
B. sanfran
C. sanjose
D. either cisco or sanfran
E. either cisco or sanjose
F. sanjose and sanfran
Correct Answer: B
QUESTION 2

A.
B.
C.
D.

Correct Answer:
QUESTION 3
The following commands are entered on the router:
Burbank(config)# enable secret fortress Burbank(config)# line con 0 Burbank(config-line)# login Burbank(config-line)# password n0way1n Burbank(config-line)# exit Burbank(config)# service password-encryption
What is the purpose of the last command entered?
A. to require the user to enter an encrypted password during the login process
B. to prevent the vty, console, and enable passwords from being displayed in plain text in the configuration files
C. to encrypt the enable secret password
D. to provide login encryption services between hosts attached to the router
Correct Answer: B
QUESTION 4
What is the effect of using the service password-encryption command?
A. Only the enable password will be encrypted.
B. Only the enable secret password will be encrypted.
C. Only passwords configured after the command has been entered will be encrypted.
D. It will encrypt the secret password and remove the enable secret password from the configuration.
E. It will encrypt all current and future passwords.
Correct Answer: E
QUESTION 5
An administrator has connected devices to a switch and, for security reasons, wants the dynamically learned MAC addresses from the address table added to the running configuration. What must be done to accomplish this?
A. Enable port security and use the keyword sticky.
B. Set the switchport mode to trunk and save the running configuration.
C. Use the switchport protected command to have the MAC addresses added to the configuration.
D. Use the no switchport port-security command to allow MAC addresses to be added to the configuration.
Correct Answer: A
QUESTION 6
A company has placed a networked PC in a lobby so guests can have access to the corporate directory. A security concern is that someone will disconnect the directory PC and re-connect their laptop computer and have access to the corporate network. For the port servicing the lobby, which three configuration steps should be performed on the switch to prevent this? (Choose three.)
A. Enable port security.
B. Create the port as a trunk port.
C. Create the port as an access port.
D. Create the port as a protected port.
E. Set the port security aging time to 0.
F. Statically assign the MAC address to the address table.
G. Configure the switch to discover new MAC addresses after a set time of inactivity.
Correct Answer: ACF QUESTION 7
Why would a network administrator configure port security on a switch?
A. to prevent unauthorized Telnet access to a switch port
B. to prevent unauthorized hosts from accessing the LAN
C. to limit the number of Layer 2 broadcasts on a particular switch port
D. block unauthorized access to the switch management interfaces

Correct Answer: B QUESTION 8
How can you ensure that only the MAC address of a server is allowed by switch port Fa0/1?
A. Configure port Fa0/1 to accept connections only from the static IP address of the server.
B. Configure the server MAC address as a static entry of port security.
C. Use a proprietary connector type on Fa0/1 that is incomputable with other host connectors.
D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.

Correct Answer: B Troubleshooting
QUESTION 1
Refer to the exhibit. An administrator cannot connect from R1 to R2. To troubleshoot this problem, the administrator has entered the command shown in the exhibit. Based on the output shown, what could be the problem?

A. The serial interface is configured for half duplex.
B. The serial interface does not have a cable attached.
C. The serial interface has the wrong type of cable attached.
D. The serial interface is configured for the wrong frame size.
E. The serial interface has a full buffer.
Correct Answer: C
QUESTION 2
Refer to the exhibit. A TFTP server has recently been installed in the Atlanta office. The network administrator is located in the NY office and has made a console connection to the NY router. After establishing the connection they are unable to backup the configuration file and IOS of the NY router to the TFTP server. What is the cause of this problem?

A. The NY router has an incorrect subnet mask.
B. The TFTP server has an incorrect IP address.
C. The TFTP server has an incorrect subnet mask.
D. The network administrator computer has an incorrect IP address.
Correct Answer: C QUESTION 3
If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?
A. half-duplex operation
B. broadcast storms
C. network segmentation
D. multicasting

Correct Answer: B QUESTION 4
Refer to the exhibit. The junior network support staff provided the diagram as a recommended configuration for the first phase of a four-phase network expansion project. The entire network expansion will have over 1000 users on 14 network segments and has been allocated this IP address space.
192.168.1.1 through 192.168.5.255
192.168.100.1 through 192.168.100.255
What are three problems with this design? (Choose three.)
A. The AREA 1 IP address space is inadequate for the number of users.
B. The AREA 3 IP address space is inadequate for the number of users.
C. AREA 2 could use a mask of /25 to conserve IP address space.
D. The network address space that is provided requires a single network-wide mask.
E. The router-to-router connection is wasting address space.
F. The broadcast domain in AREA 1 is too large for IP to function.
Correct Answer: ACE
QUESTION 5
Refer to the exhibit. Host A can communicate with Host B but not with Hosts C or D. How can the network administrator solve this problem?

A. Configure Hosts C and D with IP addresses in the 192.168.2.0 network.
B. Install a router and configure a route to route between VLANs 2 and 3.
C. Install a second switch and put Hosts C and D on that switch while Hosts A and B remain on the original switch.
D. Enable the VLAN trunking protocol on the switch.
Correct Answer: B
QUESTION 6
Refer to the exhibit. A network administrator has configured a Catalyst 2950 switch for remote management by pasting into the console the configuration commands that are shown in the exhibit. However, a Telnet session cannot be successfully established from a remote host. What should be done to fix this problem?

A. Change the first line to interface fastethernet 0/1.
B. Change the first line to interface vlan 0/1.
C. Change the fifth line to ip default-gateway 192.168.17.241.
D. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1.
E. Change the sixth line to line con 0.
Correct Answer: C
QUESTION 7
Refer to the exhibit. The network administrator is testing connectivity from the branch router to the newly installed application server. What is the most likely reason for the first ping having a success rate of only 60 percent?

A. The network is likely to be congested, with the result that packets are being intermittently dropped.
B. The branch router had to resolve the application server MAC address.
C. There is a short delay while NAT translates the server IP address.
D. A routing table lookup delayed forwarding on the first two ping packets.
E. The branch router LAN interface should be upgraded to FastEthernet.
Correct Answer: B QUESTION 8

Select two options which are security Issues which need to be modified before RouterA is used? (Choose two.)
A. unencrypted weak password is configured to protect privilege mode
B. inappropriate wording in banner message
C. the virtual terminal lines have a weak password configured
D. virtual terminal lines have a password, but it will not be used
E. configuration supports un-secure web server access
Correct Answer: BD
QUESTION 9
Select three options which are security issues with the current configuration of SwitchA. (Choose three.)
A. privilege mode is protected with an unencrypted password
B. inappropriate wording in banner message
C. virtual terminal lines are protected only by a password requirement
D. both the username and password are weak
E. telnet connections can be used to remotely manage the switch
F. cisco user will be granted privilege level 15 by default
Correct Answer: ABD
QUESTION 10

Which two of the following are true regarding the configuration of RouterA? (Choose two.)
A. at least 5 simultaneous remote connections are possible
B. only telnet protocol connections to RouterA are supported
C. remote connections to RouterA using telnet will succeed
D. console line connections will nevertime out due to inactivity
E. since DHCP is not used on Fa0/1 there is not a need to use the NAT protocol
Correct Answer: AC
QUESTION 11

Which of the following is true regarding the configuration of SwitchA?
A. only 5 simultaneous remote connections are possible
B. remote connections using ssh will require a username and password
C. only connections from the local network will be possible
D. console access to SwitchA requires a password
Correct Answer: B QUESTION 12
What is the subnet broadcast address of the LAN connected to Router1?
A. 192.168.8.15
B. 192.168.8.31
C. 192.168.8.63
D. 192.168.8.127
Correct Answer: A QUESTION 13
What is the bandwidth on the WAN interface of Router 1?
A. 16 Kbit/sec
B. 32 Kbit/sec
C. 64 Kbit/sec
D. 128 Kbit/sec
E. 512 Kbit/sec
F. 1544 Kbit/sec
Correct Answer: A
QUESTION 14
Including the address on the Routed Ethernet interface, how many hosts can have IP addresses on the LAN to which Routed is connected?
A. 6
B. 30
C. 62

D. 126
Correct Answer: A QUESTION 15
The hosts in the LAN are not able to connect to the Internet. Which commands will correct this issue?
A. Router1(conf)#interface fa0/0 Router1(conf-if)#no shutdown
B. Router1(conf)#interface fa0/1 Router1(conf-if)#no shutdown
C. Router1(conf)#interface s0/0 Router1(conf-if)#no shutdown
D. Router1(conf)#interface s0/1 Router1(conf-if)#no shutdown
E. Router1(conf)#interface s0/0 Router1(conf-if)#ip address 10.11.12.13 255.255.255.252
F. Router1(conf)#interface s0/1 Router1(conf-if)#ip address 10.100.1.1 255.255.255.252
Correct Answer: B

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QUESTION 60
An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP properties box for the sales server?
A. IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.9
B. IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.20.1
C. IP address: 192.168.20.30 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.25
D. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.17
E. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.25

Correct Answer: C
QUESTION 61
What is the default administrative distance of the OSPF routing protocol?
A. 90
B. 100
C. 110
D. 120
E. 130
F. 170
Correct Answer: C
QUESTION 62
R1 is configured with the default configuration of OSPF. From the following list of IP addresses configured on R1, which address will the OSPF process select as the router ID?

A. 192.168.0.1
B. 172.16.1.1
C. 172.16.2.1
D. 172.16.2.225
Correct Answer: A
QUESTION 63
R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two)

A. All of the routers need to be configured for backbone Area 1.
B. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.
C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.
D. The hello and dead interval timers are not set to the same values on R1 and R3.
E. EIGRP is also configured on these routers with a lower administrative distance.
F. R1 and R3 are configured in different areas.

Correct Answer: DF
QUESTION 64
What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two)
A. hello packets
B. SAP messages sent by other routers
C. LSAs from other routers
D. beacons received on point-to-point links
E. routing tables received from other link-state routers
F. TTL packets from designated routers
Correct Answer: AC QUESTION 65
ROUTER# show ip route
192.168.12.0/24 is variably subnetted, 9 subnets, 3 masks
C 192.168.12.64 /28 is directly connected, Loopback1 C 192.168.12.32 /28 is directly connected, Ethernet0 C 192.168.12.48 /28 is directly connected, Loopback0 O 192.168.12.236 /30 [110/128] via 192.168.12.233, 00:35:36, Serial0 C 192.168.12.232 /30 is directly connected, Serial0 O 192.168.12.245 /30 [110/782] via 192.168.12.233, 00:35:36, Serial0 O 192.168.12.240 /30 [110/128] via 192.168.12.233, 00:35:36, Serial0 O 192.168.12.253 /30 [110/782] via 192.168.12.233, 00:35:37, Serial0 O 192.168.12.249 /30 [110/782] via 192.168.12.233, 00:35:37, Serial0 O 192.168.12.240/30 [110/128] via 192.168.12.233, 00:35:36, Serial 0
To what does the 128 refer to in the router output above?
A. OSPF cost
B. OSPF priority
C. OSPF hop count
D. OSPF ID number
E. OSPF administrative distance

Correct Answer: A
QUESTION 66
Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two)
A. It is locally significant.
B. It is globally significant.
C. It is needed to identify a unique instance of an OSPF database.
D. It is an optional parameter required only if multiple OSPF processes are running on the router.
E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

Correct Answer: AC
QUESTION 67
Open Shortest Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). What is the default administrative distance of the OSPF routing protocol?
A. 90
B. 100
C. 110
D. 20
E. 130
F. 170
Correct Answer: C
QUESTION 68
The internetwork infrastructure of company XYZ consists of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impeding internetwork performance. As part of examining the router resources, the OSPF DRs need to be known. All the router OSPF priorities are at the default and the router IDs are shown with each router. Which routers are likely to have been elected as DR? (Choose two.)

A. Corp-1
B. Corp-2
C. Corp-3
D. Corp-4
E. Branch-1
F. Branch-2

Correct Answer: DF
QUESTION 69
Which address are OSPF hello packets addressed to on point-to-point networks?
A. 224.0.0.5
B. 172.16.0.1
C. 192.168.0.5
D. 223.0.0.1
E. 254.255.255.255
Correct Answer: A
QUESTION 70
Which statements describe the routing protocol OSPF? (Choose three)
A. It supports VLSM.
B. It is used to route between autonomous systems.
C. It confines network instability to one area of the network.
D. It increases routing overhead on the network.
E. It allows extensive control of routing updates.
F. It is simpler to configure than RIP v2.
Correct Answer: ACE QUESTION 71
R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two)

A. All of the routers need to be configured for backbone Area 1
B. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3
C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.
D. The hello and dead interval timers are not set to the same values on R1 and R3
E. EIGRP is also configured on these routers with a lower administrative distance
F. R1 and R3 are configured in different areas

Correct Answer: DF
QUESTION 72
How does a switch differ from a hub?
A. A switch does not induce any latency into the frame transfer time.
B. A switch tracks MAC addresses of directly-connected devices.
C. A switch operates at a lower, more efficient layer of the OSI model.
D. A switch decreases the number of broadcast domains.
E. A switch decreases the number of collision domains.
Correct Answer: B QUESTION 73
What must occur before a workstation can exchange HTTP packets with a web server?
A. A UDP connection must be established between the workstation and its default gateway.
B. A UDP connection must be established between the workstation and the web server.
C. A TCP connection must be established between the workstation and its default gateway.
D. A TCP connection must be established between the workstation and the web server.
E. An ICMP connection must be established between the workstation and its default gateway.
F. An ICMP connection must be established between the workstation and the web server.

Correct Answer: D
QUESTION 74
How does TCP differ from UDP? (Choose two.)
A. TCP provides best effort delivery.
B. TCP provides synchronized communication.
C. TCP segments are essentially datagrams.
D. TCP provides sequence numbering of packets.
E. TCP uses broadcast delivery.

Correct Answer: BD
QUESTION 75
A workstation has just resolved a browser URL to the IP address of a server. What protocol will the workstation now use to determine the destination MAC address to be placed into frames directed toward the server?
A. HTTP
B. DNS
C. DHCP
D. RARP
E. ARP
Correct Answer: E
QUESTION 76
Refer to the exhibit.
Host A is sending a packet to Host B for the first time. What destination MAC address will Host A use in the ARP request?

A. 192.168.0.1
B. 172.16.0.50
C. 00-17-94-61-18-b0
D. 00-19-d3-2d-c3-b2
E. ff-ff-ff-ff-ff-ff

F. 255.255.255.255
Correct Answer: E
QUESTION 77
The network manager has requested a 300-workstation expansion of the network. The workstations are to be installed in a single broadcast domain, but each workstation must have its own collision domain. The expansion is to be as cost-effective as possible while still meeting the requirements. Which three items will adequately fulfill the request? (Choose three).
A. one IP subnet with a mask of 255.255.254.0
B. two IP subnets with a mask of 255.255.255.0
C. seven 48-port hubs
D. seven 48-port switches
E. one router interface
F. seven router interfaces
Correct Answer: ADE
QUESTION 78
What are two common TCP applications? (Choose two.)
A. TFTP
B. SMTP
C. SNMP
D. FTP
E. DNS
Correct Answer: BD

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QUESTION 51
An administrator has connected devices to a switch and, for security reasons, wants the dynamically
learned MAC addresses from the address table added to the running configuration.
What must be done to accomplish this?

A. Enable port security and use the keyword sticky.
B. Set the switchport mode to trunk and save the running configuration.
C. Use the switchport protected command to have the MAC addresses added to the configuration.
D. Use the no switchport port-security command to allow MAC addresses to be added to the configuration.
Correct Answer: A Section: (none)Explanation

Explanation/Reference:
Explanation:
One can configure MAC addresses to be sticky. These can be dynamically learned or manually

“First Test, First Pass” – www.lead2pass.com 33
Cisco 100-101 Exam

configured, stored in the address table, and added to the running configuration. If these addresses are
saved in the configuration file, the interface does not need to dynamically relearn them when the switch
restarts, hence enabling security as desired.

QUESTION 52
A company has placed a networked PC in a lobby so guests can have access to the corporate directory. A security concern is that someone will disconnect the directory PC and re-connect their laptop computer and have access to the corporate network. For the port servicing the lobby, which three configuration steps should be performed on the switch to prevent this? (Choose three.)
A. Enable port security.
B. Create the port as a trunk port.
C. Create the port as an access port.
D. Create the port as a protected port.
E. Set the port security aging time to 0.
F. Statically assign the MAC address to the address table.
G. Configure the switch to discover new MAC addresses after a set time of inactivity.

Correct Answer: ACF Section: (none) Explanation
Explanation/Reference:
Explanation: If port security is enabled and the port is only designated as access port, and finally static MAC address is assigned, it ensures that even if a physical connection is done by taking out the directory PC and inserting personal laptop or device, the connection cannot be made to the corporate network, hence ensuring safety.
QUESTION 53
Why would a network administrator configure port security on a switch?
A. to prevent unauthorized Telnet access to a switch port
B. to prevent unauthorized hosts from accessing the LAN
C. to limit the number of Layer 2 broadcasts on a particular switch port
D. block unauthorized access to the switch management interfaces

Correct Answer: B Section: (none)Explanation
Explanation/Reference:
Explanation: You can use the port security feature to restrict input to an interface by limiting and identifying MAC addresses of the stations allowed to access the port. When you assign secure MAC addresses to a secure port, the port does not forward packets with source addresses outside the group of defined addresses. If you limit the number of secure MAC addresses to one and assign a single secure MAC address, the workstation attached to that port is assured the full bandwidth of the port. If a port is configured as a secure port and the maximum number of secure MAC addresses is reached, when the MAC address of a station attempting to access the port is different from any of the identified secure MAC addresses, a security violation occurs. Also, if a station with a secure MAC address configured or learned on one secure port attempts to access another secure port, a violation is flagged.
QUESTION 54
How can you ensure that only the MAC address of a server is allowed by switch port Fa0/1?
A. Configure port Fa0/1 to accept connections only from the static IP address of the server. “First Test, First Pass” – www.lead2pass.com 34 Cisco 100-101 Exam
B. Configure the server MAC address as a static entry of port security.
C. Use a proprietary connector type on Fa0/1 that is incomputable with other host connectors.
D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.

Correct Answer: B Section: (none)Explanation
Explanation/Reference:
Explanation:
When the MAC address is configured as static entry, no other address is allowed.

QUESTION 55
Refer to the exhibit. A network administrator has configured a Catalyst 2950 switch for remote management by pasting into the console the configuration commands that are shown in the exhibit. However, a Telnet session cannot be successfully established from a remote host. What should be done to fix this problem?

A. Change the first line to interface fastethernet 0/1.
B. Change the first line to interface vlan 0/1.
C. Change the fifth line to ip default-gateway 192.168.17.241.
D. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1.
E. Change the sixth line to line con 0.

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
Explanation:
The default gateway for remote session is 192.168.17.241 and not the one given in the exhibit.

QUESTION 56
Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three.)
A. 10.1.168.0
B. 10.1.176.1
C. 10.1.174.255
D. 10.1.160.255
E. 10.1.160.0
F. 10.1.175.255

Correct Answer: ACD Section: (none)Explanation
Explanation/Reference:
Explanation:
“First Test, First Pass” – www.lead2pass.com 35 Cisco 100-101 Exam
All IP address in IP ranges between : 10.1.160.1 and 10.1.175.254 are valid as shown below Address:
10.1.160.0 00001010.00000001.1010 0000.00000000 Netmask:255.255.240.0 = 2011111111.11111111.1111 0000.00000000 Wildcard:0.0.15.25500000000.00000000.0000 1111.11111111 Which implies that Network: 10.1.160.0/20 00001010.00000001.1010 0000.00000000 HostMin:10.1.160.100001010.00000001.1010 0000.00000001 HostMax:10.1.175.25400001010.00000001.1010 1111.11111110 Broadcast:10.1.175.25500001010.00000001.1010 1111.11111111
QUESTION 57
Refer to the exhibit. An administrator cannot connect from R1 to R2. To troubleshoot this problem, the administrator has entered the command shown in the exhibit. Based on the output shown, what could be the problem?

A. The serial interface is configured for half duplex.
B. The serial interface does not have a cable attached.
C. The serial interface has the wrong type of cable attached.
D. The serial interface is configured for the wrong frame size.
E. The serial interface has a full buffer.

Correct Answer: C Section: (none)Explanation
Explanation/Reference:
Explanation: since the output is not forthcoming it shows that the type of cable attached is wrong, though the cable is connected since it shows the cable type. According to the figure DTE cable should connect to R1 on interface but while examining using show controllers serial 0/0 command it showing that a DCE is connected so the wrong type of cable is being used.
“First Test, First Pass” – www.lead2pass.com 36 Cisco 100-101 Exam
QUESTION 58
Refer to the exhibit. A TFTP server has recently been installed in the Atlanta office. The network administrator is located in the NY office and has made a console connection to the NY router. After establishing the connection they are unable to backup the configuration file and IOS of the NY router to the TFTP server. What is the cause of this problem?

A. The NY router has an incorrect subnet mask.
B. The TFTP server has an incorrect IP address.
C. The TFTP server has an incorrect subnet mask.
D. The network administrator computer has an incorrect IP address.

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
Explanation:
The subnet mast of the TFTP server needs to be in tune with the other network requirements else it wont
be possible.

QUESTION 59
If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?
A. half-duplex operation
B. broadcast storms
C. network segmentation
D. multicasting

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
Explanation:
A broadcast storm can consume sufficient network resources so as to render the network unable to
transport normal traffic.

QUESTION 60
Refer to the exhibit. The junior network support staff provided the diagram as a recommended configuration for the first phase of a four-phase network expansion project. The entire network expansion will have over 1000 users on 14 network segments and has been allocated this IP
“First Test, First Pass” – www.lead2pass.com 37 Cisco 100-101 Exam
address space.
192.168.1.1 through 192.168.5.255
192.168.100.1 through 192.168.100.255
What are three problems with this design? (Choose three.)

A. The AREA 1 IP address space is inadequate for the number of users.
B. The AREA 3 IP address space is inadequate for the number of users.
C. AREA 2 could use a mask of /25 to conserve IP address space.
D. The network address space that is provided requires a single network-wide mask.
E. The router-to-router connection is wasting address space.
F. The broadcast domain in AREA 1 is too large for IP to function.

Correct Answer: ACE Section: (none)Explanation
Explanation/Reference:
Explanation:
The given IP addresses of areas 1 and 3 along with network masks of 24 cannot accommodate 500 users
so are inadequate, while the area 2 is having over capacity so its network mask can be reduced to 25 to
accommodate the only 60 users it has.

QUESTION 61
Given an IP address of 192.168.1.42 255.255.255.248, what is the subnet address?
A. 192.168.1.8/29
B. 192.168.1.32/27
C. 192.168.1.40/29
D. 192.168.1.16/28
E. 192.168.1.48/29 “First Test, First Pass” – www.lead2pass.com 38 Cisco 100-101 Exam
Correct Answer: C Section: (none) Explanation

Explanation/Reference:
Explanation:
248 mask uses 5 bits (1111 1000)
42 IP in binary is (0010 1010)
The base subnet therefore is the lowest binary value that can be written without changing the output of an
AND operation of the subnet mask and IP …
1111 1000 AND
0010 1010 equals
0010 1000 – which is .40
/24 is standard class C mask.
adding the 5 bits from the .248 mask gives /29

QUESTION 62
Which OSI layer header contains the address of a destination host that is on another network?
A. application
B. session
C. transport
D. network
E. data link
F. physical

Correct Answer: D Section: (none) Explanation
Explanation/Reference:
Explanation:
Only network address contains this information. To transmit the packets the sender uses network address
and datalink address. But the layer 2 address represents just the address of the next hop device on the
way to the sender. It is changed on each hop. Network address remains the same.

QUESTION 63
Which layer of the TCP/IP stack combines the OSI model physical and data link layers?
A. Internet layer
B. transport layer
C. application layer
D. network access layer

Correct Answer: D Section: (none) Explanation
Explanation/Reference:
Explanation: The Internet Protocol Suite, TCP/IP, is a suite of protocols used for communication over the internet. The TCP/IP model was created after the OSI 7 layer model for two major reasons. First, the foundation of the Internet was built using the TCP/IP suite and through the spread of the World Wide Web and Internet, TCP/IP has been preferred. Second, a project researched by the Department of Defense (DOD) consisted of creating the TCP/IP protocols. The DOD’s goal was to bring international standards which could not be met by the OSI model. Since the DOD was the largest software consumer and they preferred the TCP/IP suite, most vendors used this model rather then the OSI. Below is a side by side comparison of the TCP/IP and OSI models. TCP/IP Model VS. OSI Model Application Layer 7 Application Layer 6 Presentation
“First Test, First Pass” – www.lead2pass.com 39 Cisco 100-101 Exam
Layer 5 Session Transport Layer 4 Transport Internet Layer 3 Network Network Access Layer 2 Data Link Layer 1 Physical
QUESTION 64
Which protocol uses a connection-oriented service to deliver files between end systems?
A. TFTP
B. DNS
C. FTP
D. SNMP
E. RIP

Correct Answer: C Section: (none)Explanation
Explanation/Reference:
QUESTION 65
Refer to the exhibit. If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

A. broadcast domains
B. repeater domains
C. Ethernet collisions
D. signal amplification
E. Ethernet broadcasts

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
“First Test, First Pass” – www.lead2pass.com 40
Cisco 100-101 Exam

Explanation:
Modern wired networks use a network switch to eliminate collisions. By connecting each device directly to
a port on the switch, either each port on a switch becomes its own collision domain (in the case of half
duplex links) or the possibility of collisions is eliminated entirely in the case of full duplex links.

QUESTION 66
Refer to the exhibit. If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?

A. 10.168.10.99
B. 10.168.11.88
C. A1:A1:A1:A1:A1:A1
D. B2:B2:B2:B2:B2:B2
E. C3:C3:C3:C3:C3:C3
F. D4:D4:D4:D4:D4:D4

Correct Answer: E Section: (none) Explanation
Explanation/Reference:
Explanation: When packets transfer from one host to another across a routed segment, the source IP address always remains the same source IP address, and the source physical (MAC) address will be the existing router’s interface address. Similarly, the destination IP address always remains the same and the destination physical (MAC) address is the destination router’s interface address.
QUESTION 67
Refer to the exhibit. HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
“First Test, First Pass” – www.lead2pass.com 41 Cisco 100-101 Exam

A. abcd.1123.0045
B. 192.168.7.17
C. aabb.5555.2222
D. 192.168.1.1
E. abcd.2246.0035

Correct Answer: E Section: (none)Explanation
Explanation/Reference:
Explanation:
For packets destined to a host on another IP network, the destination MAC address will be the LAN
interface of the router. Since the FTP server lies on a different network, the host will know to send the
frame to its default gateway, which is Toronto.

QUESTION 68
Which network device functions only at Layer 1 of the OSI model?

C. “First Test, First Pass” – www.lead2pass.com 42 Cisco 100-101 Exam

E.

Correct Answer: C Section: (none)Explanation
Explanation/Reference:
Explanation:
Most hubs are amplifying the electrical signal; therefore, they are really repeaters with several ports. Hubs
and repeaters are Layer 1 (physical layer) devices.

QUESTION 69
Refer to the exhibit. The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?

A. 10.1.0.1
B. 10.1.0.5
C. 10.1.0.6
D. 10.1.0.14
E. 10.1.1.16
F. 10.1.2.8

Correct Answer: E Section: (none) Explanation
Explanation/Reference:
Explanation: Although the source and destination MAC address will change as a packet traverses a network, the source and destination IP address will not unless network address translation (NAT) is being done, which is not the case here.
“First Test, First Pass” – www.lead2pass.com 43 Cisco 100-101 Exam
QUESTION 70
Refer to the exhibit. As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)

A. Hub1
B. Switch1
C. Router1
D. Switch2
E. Router2
F. Switch3

Correct Answer: BDF Section: (none) Explanation
Explanation/Reference:
Explanation: Switches use the destination MAC address information for forwarding traffic, while routers use the destination IP address information. Local Area Networks employ Layer 2 Switches and Bridges to forward and filter network traffic. Switches and Bridges operate at the Data Link Layer of the Open System Interconnect Model (OSI). Since Switches and Bridges operate at the Layer 2 they operate more intelligently than hubs, which work at Layer 1 (Physical Layer) of the OSI. Because the switches and bridges are able to listen to the traffic on the wire to examine the source and destination MAC address. Being able to listen to the traffic also allows the switches and bridges to compile a MAC address table to better filter and forward network traffic. To accomplish the above functions switches and bridges carry out the following tasks: MAC address learning by a switch or a bridge is accomplished by the same method. The switch or bridge listens to each device connected to each of its ports and scan the incoming frame for the source MAC address. This creates a MAC address to port map that is cataloged in the switches/bridge MAC database. Another name for the MAC address table is content addressable memory orCAM table. When a switch or bridge is listening o the network traffic, it receives each frame and compares it to the MAC address table. By checking the MAC table the switch/ bridge are able o determine which port the frame came in on. If the frame is on the MAC table the frame is filtered or transmitted on only that port. If the switch determines that the frame is not on the MAC table, the frame is forwarded out to all ports except the incoming port.
QUESTION 71
Refer to the exhibit. Mary is sending an instant message to Robert. The message will be broken
“First Test, First Pass” – www.lead2pass.com 44 Cisco 100-101 Exam
into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?

A.

B.

C.

E.

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
“First Test, First Pass” – www.lead2pass.com 45 Cisco 100-101 Exam
Explanation: The Source and Destination IP address is not going to change. Host 1 IP address will stay as being the source IP and the Host 2 IP address will stay the destination IP address. Those two are not going to change. For the MAC address it is going to change each time it goes from one hope to another. (Except switches… they don’t change anything) Frame leaving HOST 1 is going to have a source MAC of Host 1 and a destination MAC of Router1. Router 1 is going to strip that info off and then will make the source MAC address of Router1’s exiting interface, and making Router2’s interface as the destination MAC address. Then the same will happen… Router2 is going to change the source/destination info to the source MAC being the Router2 interface that it is going out, and the destination will be Host2’s MAC address.
QUESTION 72
Refer to the exhibit. A network device needs to be installed in the place of the icon labeled Network Device to accommodate a leased line attachment to the Internet. Which network device and interface configuration meets the minimum requirements for this installation?

A. a router with two Ethernet interfaces
B. a switch with two Ethernet interfaces
C. a router with one Ethernet and one serial interface
D. a switch with one Ethernet and one serial interface
E. a router with one Ethernet and one modem interface

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
Explanation:
Only a router can terminate a leased line attachment access circuit, and only a router can connect two
different IP networks. Here, we will need a router with two interfaces, one serial connection for the line
attachment and one Ethernet interface to connect to the switch on the LAN.

QUESTION 73
Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?
A. HTTP
B. IP
C. TCP “First Test, First Pass” – www.lead2pass.com 46 Cisco 100-101 Exam
D. Telnet
E. UDP

Correct Answer: E Section: (none) Explanation
Explanation/Reference:
Explanation: UDP provides a connectionless datagram service that offers best-effort delivery, which means that UDP does not guarantee delivery or verify sequencing for any datagrams. A source host that needs reliable communication must use either TCP or a program that provides its own sequencing and acknowledgment services.
QUESTION 74
Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?
A. Physical
B. Data-link
C. Transport
D. Network

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
Explanation: There are many services that can be optionally provided by a transport-layer protocol, and different protocols may or may not implement them. Connection-oriented communication: It is normally easier for an application to interpret a connection as a data stream rather than having to deal with the underlying connection-less models, such as the datagram model of the User Datagram Protocol (UDP) and of the Internet Protocol (IP). Byte orientation: Rather than processing the messages in the underlying communication system format, it is often easier for an application to process the data stream as a sequence of bytes. This simplification helps applications work with various underlying message formats. Same order delivery: The network layer doesn’t generally guarantee that packets of data will arrive in the same order that they were sent, but often this is a desirable feature. This is usually done through the use of segment numbering, with the receiver passing them to the application in order. This can cause head-of-line blocking. Reliability: Packets may be lost during transport due to network congestion and errors. By means of an error detection code, such as a checksum, the transport protocol may check that the data is not corrupted, and verify correct receipt by sending an ACK or NACK message to the sender. Automatic repeat request schemes may be used to retransmit lost or corrupted data. Flow control: The rate of data transmission between two nodes must sometimes be managed to prevent a fast sender from transmitting more data than can be supported by the receiving data buffer, causing a buffer overrun. This can also be used to improve efficiency by reducing buffer underrun. Congestion avoidance: Congestion control can control traffic entry into a telecommunications network, so as to avoid congestive collapse by attempting to avoid oversubscription of any of the processing or link capabilities of the intermediate nodes and networks and taking resource reducing steps, such as reducing the rate of sending packets. For example, automatic repeat requests may keep the network in a congested state; this situation can be avoided by adding congestion avoidance to the flow control, including slow-start. This keeps the bandwidth consumption at a low level in the beginning of the transmission, or after packet retransmission. Multiplexing: Ports can provide multiple endpoints on a single node. For example, the name on a postal address is a kind of multiplexing, and distinguishes between different recipients of the same location. Computer applications will each listen for information on their own ports, which enables the use of more than one network service at the same time. It is part of the transport layer in the TCP/IP model, but of the session layer in the OSI model.
“First Test, First Pass” – www.lead2pass.com 47 Cisco 100-101 Exam
QUESTION 75
Drag and Drop Question

A.
B.
C.
D.

Correct Answer: Section: (none) Explanation
Explanation/Reference: QUESTION 76

Drag and Drop Question
“First Test, First Pass” – www.lead2pass.com 48 Cisco 100-101 Exam

A.
B.
C.
D.

Correct Answer: Section: (none) Explanation
Explanation/Reference:

QUESTION 77
Drag and Drop Question

A.
B.
C.
D.

Correct Answer: Section: (none) Explanation
Explanation/Reference:
“First Test, First Pass” – www.lead2pass.com 49 Cisco 100-101 Exam

QUESTION 78
Drag and Drop Question

A.
B.
C.
D.

Correct Answer: Section: (none) Explanation
Explanation/Reference:
“First Test, First Pass” – www.lead2pass.com 50 Cisco 100-101 Exam

QUESTION 79
Drag and Drop Question

A.
B.
C.
D.

Correct Answer: Section: (none) Explanation
Explanation/Reference: QUESTION 80

Hotspot Questions
“First Test, First Pass” – www.lead2pass.com 51 Cisco 100-101 Exam

Select two options which are security Issues which need to be modified before RouterA is used? (Choose two.)
A. unencrypted weak password is configured to protect privilege mode
B. inappropriate wording in banner message
C. the virtual terminal lines have a weak password configured
D. virtual terminal lines have a password, but it will not be used
E. configuration supports un-secure web server access

Correct Answer: BD Section: (none)Explanation
Explanation/Reference:
Explanation:
“First Test, First Pass” – www.lead2pass.com 52 Cisco 100-101 Exam (This answer can be done by simulation only, don’t know user name password and banner message etc)

 
Cisco 100-101 only advanced and equipped with much more features,it is also not internet dependent,once installed.It enables you to see Interconnecting Cisco Networking Devices in a simulated Cisco 100-101 exam environment.Working with Cisco 100-101 Interactive Testing Engine is like passing an actual Cisco 100-101 exam.

 

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Free Sharing Flydumps Cisco 100-101 exam questions and answers are constantly being revised and updated for relevance and accuracy. Many candidates has passed the Cisco 100-101 exam easily by training the new version.100% pass rate.

QUESTION 1
Refer to the exhibit.

Which two statements are correct? (Choose two.)
A. This is a default route.
B. Adding the subnet mask is optional for the ip route command.
C. This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA.
D. This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address.
E. The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.
Correct Answer: AC
QUESTION 2
Which statements are true regarding ICMP packets? (Choose two.)
A. They acknowledge receipt of TCP segments.
B. They guarantee datagram delivery.
C. TRACERT uses ICMP packets.
D. They are encapsulated within IP datagrams.
E. They are encapsulated within UDP datagrams.
Correct Answer: CD
QUESTION 3
The command ip route 192.168.100.160 255.255.255.224 192.168.10.2 was issued on a router. No routing protocols or other static routes are configured on the router. Which statement is true about this command?
A. The interface with IP address 192.168.10.2 is on this router.
B. The command sets a gateway of last resort for the router.
C. Packets that are destined for host 192.168.100.160 will be sent to 192.168.10.2.
D. The command creates a static route for all IP traffic with the source address 192.168.100.160.
Correct Answer: C QUESTION 4
Refer to the exhibit.

Host A can communicate with Host B but not with Hosts C or D. How can the network administrator solve this problem?
A. Configure Hosts C and D with IP addresses in the 192.168.2.0 network.
B. Install a router and configure a route to route between VLANs 2 and 3.
C. Install a second switch and put Hosts C and D on that switch while Hosts A and B remain on the original switch.
D. Enable the VLAN trunking protocol on the switch.

Correct Answer: B QUESTION 5
Refer to the exhibit.

What is the simplest way to configure routing between the regional office network 10.89.0.0/20 and the corporate network?
A. router1(config)#ip route 10.89.0.0 255.255.240.0 10.89.16.2
B. router2(config)#ip route 10.89.3.0 255.255.0.0 10.89.16.2
C. router1(config)#ip route 10.89.0.0 255.255.240.0 10.89.16.1
D. router2(config)#ip route 0.0.0.0 0.0.0.0 10.89.16.1

Correct Answer: D QUESTION 6
Refer to the exhibit.

Which command would you use to configure a static route on Router1 to network 192.168.202.0/24 with a nondefault administrative distance?
A. router1(config)#ip route 1 192.168.201.1 255.255.255.0 192.168.201.2
B. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 1
C. router1(config)#ip route 5 192.168.202.0 255.255.255.0 192.168.201.2
D. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 5

Correct Answer: D QUESTION 7
What does administrative distance refer to?
A. the cost of a link between two neighboring routers
B. the advertised cost to reach a network
C. the cost to reach a network that is administratively set
D. a measure of the trustworthiness of a routing information source

Correct Answer: D
QUESTION 8
Which IOS command is used to initiate a login into a VTY port on a remote router?
A. router# login
B. router# telnet
C. router# trace
D. router# ping
E. router(config)# line vty 0 5
F. router(config-line)# login
Correct Answer: B
QUESTION 9
In the configuration of NAT, what does the keyword overload signify?
A. When bandwidth is insufficient, some hosts will not be allowed to access network translation.
B. The pool of IP addresses has been exhausted.
C. Multiple internal hosts will use one IP address to access external network resources.
D. If the number of available IP addresses is exceeded, excess traffic will use the specified address pool.
Correct Answer: C
QUESTION 10
What happens when computers on a private network attempt to connect to the Internet through a Cisco router running PAT?
A. The router uses the same IP address but a different TCP source port number for each connection.
B. An IP address is assigned based on the priority of the computer requesting the connection.
C. The router selects an address from a pool of one-to-one address mappings held in the lookup table.
D. The router assigns a unique IP address from a pool of legally registered addresses for the duration of the connection.
Correct Answer: A

QUESTION 11
When configuring NAT, the Internet interface is considered to be what?
A. local
B. inside
C. global
D. outside
Correct Answer: D

QUESTION 12
The ip helper-address command does what?
A. assigns an IP address to a host
B. resolves an IP address from a DNS server
C. relays a DHCP request across networks
D. resolves an IP address overlapping issue
Correct Answer: C QUESTION 13
Refer to the exhibit.

The network administrator made the entries that are shown and then saved the configuration. From a console connection, what password or password sequence is required for the administrator to access privileged mode on Router1?
A. cisco
B. sanfran
C. sanjose
D. either cisco or sanfran
E. either cisco or sanjose
F. sanjose and sanfran

Correct Answer: B
QUESTION 14
The following commands are entered on the router: Burbank(config)# enable secret fortress Burbank(config)# line con 0 Burbank(config-line)# login Burbank(config-line)# password n0way1n Burbank(config-line)# exit Burbank(config)# service password-encryption What is the purpose of the last command entered?
A. to require the user to enter an encrypted password during the login process
B. to prevent the vty, console, and enable passwords from being displayed in plain text in the configuration files
C. to encrypt the enable secret password
D. to provide login encryption services between hosts attached to the router
Correct Answer: B

QUESTION 15
What is the effect of using the service password-encryption command?
A. Only the enable password will be encrypted.
B. Only the enable secret password will be encrypted.
C. Only passwords configured after the command has been entered will be encrypted.
D. It will encrypt the secret password and remove the enable secret password from the configuration.
E. It will encrypt all current and future passwords.
Correct Answer: E
QUESTION 16
An administrator has connected devices to a switch and, for security reasons, wants the dynamically learned MAC addresses from the address table added to the running configuration. What must be done to accomplish this?
A. Enable port security and use the keyword sticky.
B. Set the switchport mode to trunk and save the running configuration.
C. Use the switchport protected command to have the MAC addresses added to the configuration.
D. Use the no switchport port-security command to allow MAC addresses to be added to the configuration.
Correct Answer: A
QUESTION 17
A company has placed a networked PC in a lobby so guests can have access to the corporate directory. A security concern is that someone will disconnect the directory PC and re-connect their laptop computer and have access to the corporate network. For the port servicing the lobby, which three configuration steps should be performed on the switch to prevent this? (Choose three.)
A. Enable port security.
B. Create the port as a trunk port.
C. Create the port as an access port.
D. Create the port as a protected port.
E. Set the port security aging time to 0.
F. Statically assign the MAC address to the address table.
G. Configure the switch to discover new MAC addresses after a set time of inactivity.
Correct Answer: ACF
QUESTION 18
Why would a network administrator configure port security on a switch?
A. to prevent unauthorized Telnet access to a switch port
B. to prevent unauthorized hosts from accessing the LAN
C. to limit the number of Layer 2 broadcasts on a particular switch port
D. block unauthorized access to the switch management interfaces
Correct Answer: B

QUESTION 19
How can you ensure that only the MAC address of a server is allowed by switch port Fa0/1?
A. Configure port Fa0/1 to accept connections only from the static IP address of the server.
B. Configure the server MAC address as a static entry of port security.
C. Use a proprietary connector type on Fa0/1 that is incomputable with other host connectors.
D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
Correct Answer: B

QUESTION 20
Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three.)
A. 10.1.168.0
B. 10.1.176.1
C. 10.1.174.255
D. 10.1.160.255
E. 10.1.160.0
F. 10.1.175.255
Correct Answer: ACD
QUESTION 21
Refer to the exhibit.

A network administrator has configured a Catalyst 2950 switch for remote management by pasting into the console the configuration commands that are shown in the exhibit. However, a Telnet session cannot be successfully established from a remote host. What should be done to fix this problem?
A. Change the first line to interface fastethernet 0/1.
B. Change the first line to interface vlan 0/1.
C. Change the fifth line to ip default-gateway 192.168.17.241.
D. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1.
E. Change the sixth line to line con 0.
Correct Answer: C
QUESTION 22
Refer to the exhibit.

An administrator cannot connect from R1 to R2. To troubleshoot this problem, the administrator has entered the command shown in the exhibit. Based on the output shown, what could be the problem?
A. The serial interface is configured for half duplex.
B. The serial interface does not have a cable attached.
C. The serial interface has the wrong type of cable attached.
D. The serial interface is configured for the wrong frame size.
E. The serial interface has a full buffer.
Correct Answer: C
QUESTION 23
Refer to the exhibit.

A TFTP server has recently been installed in the Atlanta office. The network administrator is located in the NY office and has made a console connection to the NY router. After establishing the connection they are unable to backup the configuration file and IOS of the NY router to the TFTP server. What is the cause of this problem?
A. The NY router has an incorrect subnet mask.
B. The TFTP server has an incorrect IP address.
C. The TFTP server has an incorrect subnet mask.
D. The network administrator computer has an incorrect IP address.
Correct Answer: C QUESTION 24
If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?
A. half-duplex operation
B. broadcast storms
C. network segmentation
D. multicasting

Correct Answer: B QUESTION 25
Refer to the exhibit.

The junior network support staff provided the diagram as a recommended configuration for the first phase of a four-phase network expansion project. The entire network expansion will have over 1000 users on 14 network segments and has been allocated this IP address space.
192.168.1.1 through 192.168.5.255

192.168.100.1 through 192.168.100.255
What are three problems with this design? (Choose three.)

A. The AREA 1 IP address space is inadequate for the number of users.

B. The AREA 3 IP address space is inadequate for the number of users.

C. AREA 2 could use a mask of /25 to conserve IP address space.

D. The network address space that is provided requires a single network-wide mask.

E. The router-to-router connection is wasting address space.

F. The broadcast domain in AREA 1 is too large for IP to function.

Correct Answer: ACE
QUESTION 26
Given an IP address of 192.168.1.42 255.255.255.248, what is the subnet address?
A. 192.168.1.8/29
B. 192.168.1.32/27
C. 192.168.1.40/29
D. 192.168.1.16/28
E. 192.168.1.48/29
Correct Answer: C
QUESTION 27
Which OSI layer header contains the address of a destination host that is on another network?
A. application
B. session
C. transport
D. network
E. data link
F. physical
Correct Answer: D
QUESTION 28
Which layer of the TCP/IP stack combines the OSI model physical and data link layers?
A. Internet layer
B. transport layer
C. application layer
D. network access layer
Correct Answer: D
QUESTION 29
Which protocol uses a connection-oriented service to deliver files between end systems?
A. TFTP
B. DNS
C. FTP
D. SNMP
E. RIP
Correct Answer: C
QUESTION 30
Refer to the exhibit.

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?
A. broadcast domains
B. repeater domains
C. Ethernet collisions
D. signal amplification
E. Ethernet broadcasts
Correct Answer: C QUESTION 31
Refer to the exhibit.

If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?
A. 10.168.10.99
B. 10.168.11.88
C. A1:A1:A1:A1:A1:A1
D. B2:B2:B2:B2:B2:B2

E. C3:C3:C3:C3:C3:C3
F. D4:D4:D4:D4:D4:D4
Correct Answer: E
QUESTION 32
Refer to the exhibit.

HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
A. abcd.1123.0045
B. 192.168.7.17
C. aabb.5555.2222

D. 192.168.1.1
E. abcd.2246.0035

Correct Answer: E QUESTION 33
Which network device functions only at Layer 1 of the OSI model?
Correct Answer: C QUESTION 34
Refer to the exhibit.

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?
A. 10.1.0.1
B. 10.1.0.5
C. 10.1.0.6
D. 10.1.0.14
E. 10.1.1.16
F. 10.1.2.8
Correct Answer: E
QUESTION 35
Refer to the exhibit.

As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)
A. Hub1
B. Switch1
C. Router1
D. Switch2
E. Router2
F. Switch3

Correct Answer: BDF
QUESTION 36
Refer to the exhibit.

Mary is sending an instant message to Robert. The message will be broken into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?
Correct Answer: B QUESTION 37
Refer to the exhibit.

A network device needs to be installed in the place of the icon labeled Network Device to accommodate a leased line attachment to the Internet. Which network device and interface configuration meets the minimum requirements for this installation?
A. a router with two Ethernet interfaces
B. a switch with two Ethernet interfaces
C. a router with one Ethernet and one serial interface
D. a switch with one Ethernet and one serial interface
E. a router with one Ethernet and one modem interface

Correct Answer: C
QUESTION 38
Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?
A. HTTP
B. IP
C. TCP
D. Telnet

E. UDP
Correct Answer: E
QUESTION 39
Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?
A. Physical
B. Data-link
C. Transport
D. Network
Correct Answer: C QUESTION 40

A. 1 = E, 2 = D, 3 = C, 4 = F, 5 = B
B. 1 = C, 2 = F, 3 = E, 4 = D, 5 = B
C. 1 = C, 2 = D, 3 = E, 4 = F, 5 = A
D. 1 = B, 2 = D, 3 = E, 4 = F, 5 = A
E. 1 = C, 2 = D, 3 = E, 4 = F, 5 = B
Correct Answer: E
QUESTION 41

A. 1 = B, 2 = A, 3 = E, 4 = D
B. 1 = F, 2 = A, 3 = E, C = B
C. 1 = C, 2 = A, 3 = E, 4 = B
D. 1 = F, 2 = A, 3 = E, 4 = B
E. 1 = C, 2 = A, 3 = E, 4 = D
Correct Answer: D
QUESTION 42

A. 1 = C, 2 = F, 3 = D, 4 = A
B. 1 = D, 2 = F, 3 = D, 4 = A
C. 1 = B, 2 = F, 3 = D, 4 = A
D. 1 = C, 2 = F, 3 = D, 4 = B

E. 1 = C, 2 = E, 3 = D, 4 = A
Correct Answer: A
QUESTION 43

A. SNMP = A, FTP = D, TFTP = F, DNS = C, DHCP = B
B. SNMP = E, FTP = F, TFTP = D, DNS = A, DHCP = B
C. SNMP = A, FTP = F, TFTP = D, DNS =A, DHCP = C
D. SNMP = E, FTP = F, TFTP = D, DNS = C, DHCP = C

E. SNMP = A, FTP = D, TFTP = F, DNS = C, DHCP = B
Correct Answer: B
QUESTION 44

A. Application layer = SNMP, transport layer = TCP, internet layer = IP, network access layer = Ehternet
B. Application layer = SNMP, transport layer = IP, internet layer = TCP, network access layer = Ehternet
C. Application layer = SNMP, transport layer = TCP, internet layer = IP, network access layer = ARP
D. Application layer = SMTP, transport layer = TCP, internet layer = IP, network access layer = Ehternet
E. Application layer = ARP, transport layer = TCP, internet layer = IP, network access layer = UDP
Correct Answer: D
QUESTION 45
Select two options which are security Issues which need to be modified before RouterA is used? (Choose two.)
A. unencrypted weak password is configured to protect privilege mode
B. inappropriate wording in banner message
C. the virtual terminal lines have a weak password configured
D. virtual terminal lines have a password, but it will not be used
E. configuration supports un-secure web server access
Correct Answer: BD
QUESTION 46
Select three options which are security issues with the current configuration of SwitchA . (Choose three.)
A. privilege mode is protected with an unencrypted password
B. inappropriate wording in banner message
C. virtual terminal lines are protected only by a password requirement
D. both the username and password are weak
E. telnet connections can be used to remotely manage the switch
F. cisco user will be granted privilege level 15 by default
Correct Answer: ABD
QUESTION 47
Which two of the following are true regarding the configuration of RouterA? (Choose two.)
A. at least 5 simultaneous remote connections are possible
B. only telnet protocol connections to RouterA are supported
C. remote connections to RouterA using telnet will succeed
D. console line connections will nevertime out due to inactivity
E. since DHCP is not used on FaO/1 there is not a need to use the NAT protocol
Correct Answer: AC
QUESTION 48
Which of the following is true regarding the configuration of SwitchA?
A. only 5 simultaneous remote connections are possible
B. remote connections using ssh will require a username and password
C. only connections from the local network will be possible
D. console access to SwitchA requires a password
Correct Answer: B QUESTION 49
A.
B.
C.
D.
Correct Answer: A
QUESTION 50
A.
B.
C.
D.
E.
F.
Correct Answer: E
Exam C QUESTION 1
A.
B.
C.
D.
Correct Answer: A
QUESTION 2
A.
B.
C.
D.
E.
F.

Correct Answer: B
QUESTION 3
Some routers have been configured with default routes. What are some of the advantages of using default routes? (Choose two)
A. They establish routes that will never go down.
B. They keep routing tables small.
C. They require a great deal of CPU power.
D. They allow connectivity to remote networks that are not in the routing table
E. They direct traffic from the internet into corporate networks.
Correct Answer: BD
QUESTION 4
Refer to the exhibit

After the power-on-self test (POST), the system LED of a Cisco 2950 switch turns amber. What is the status of the switch?
A. The POST was successful.
B. The switch has a problem with the internal power supply and needs an external power supply to be attached.
C. POST failed and there is a problem that prevents the operating system from being loaded.
D. The switch has experienced an internal problem but data can still be forwarded at a slower rate.
E. The switch passed POST, but all the switch ports are busy.
Correct Answer: C
QUESTION 5
Refer to the exhibit A. The data frames will be forwarded out interface FastEthernet0/1 of CORE router.

B. The data frames will be forwarded out interface FastEthernet1/0 of CORE router.
C. CORE router will replace the destination IP address of the packets with the IP address of PC2.
D. CORE router will replace the MAC address of PC2 in the destination MAC address of the frames.
E. CORE router will put the IP address of the forwarding FastEthernet interface in the place of the source IP address in the packets.
F. CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the source MAC address.
Correct Answer: BDF
QUESTION 6
Which three statements are correct about RIP version 2? (Choose three)
A. It uses broadcast for its routing updates.
B. It supports authentication.
C. It is a classless routing protocol.
D. It has a lower default administrative distance then RIP version 1.
E. It has the same maximum hop count as RIP version 1.
F. It does not send the subnet mask any updates.
Correct Answer: BCE
QUESTION 7
Refer to the exhibit What two facts can be determined from the WLAN diagram? (Choose two)

A. The area of overlap of the two cells represents a basic service set (BSS).
B. The network diagram represents an extended service set (ESS).
C. Access points in each cell must be configured to use channel !.
D. The area of overlap must be less than 10% of the area to ensure connectivity.
E. The two APs should be configured to operate on different channels.
Correct Answer:
QUESTION 8
Refer to the exhibit A host is connected to switch port fa0/3. The host and switch have been fully configured for IP connectivity as shown. However, the indicator LED on switch port fa0/3 is not on, and the host cannot communicate with any other hosts including those connected to VLAN 2 on the same switch. Based on the given information, what is the problem?

A. Switch port fa0/3 is not configured as a trunk port.
B. There is a bad cable.
C. The switch has been assigned an incorrect subnet mask.
D. Switch port fa0/3 has been blocked by STP.
E. the switch and the host must be in the same subnet.
Correct Answer: B
QUESTION 9
To what type of port would a cable with a DB-60 connector attach?
A. Serial port
B. Console port
C. Ethernet port
D. Fibre optic port
Correct Answer: A
QUESTION 10
Refer to the exhibit HostA cannot ping HostB. Assuming routing is properly configured, what would be the cause of this problem?

A. HostA is not on the same subnet as its default gateway.
B. The address of SwitchA is a subnet mask.
C. The fa0/0 interface on RouterA is on a subnet that can’t be used.
D. The serial interfaces of the routers are not on the same subnet.
E. The FA0/0 on RouterB is using a broadcast address.
Correct Answer: D
QUESTION 11
Which IP address is a private address?
A. 12.0.0.1
B. 168.172.19.39
C. 172.20.14.36
D. 172.33.194.30
E. 192.169.42.34
Correct Answer: C
QUESTION 12
What is the difference between the Cisco router IOS commands “show cdp neighbor” and “show cdp entry?
A. The “show cdp neighbor detail” command shows all neighbor information, while “show cdp entry” only displays one line of output for each neighbor.
B. The “show cdp entry” command shows neighbor information for specific neighbors only, while “show cdp neighbor detail” lists each neighbor with detailed output on each.
C. The “show cdp entry” command shows neighbor information for all neighbors with one line of output for each, while “show cdp neighbor detail” lists each neighbor with detailed output on each.
D. The “show cdp neighbor detail” command shows neighbor information foe a single neighbor only, while “show cdp entry” displays detailed output on each neighbor known.
Correct Answer: B
QUESTION 13
How many simultaneous Telnet sessions does a Cisco router support by default?
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
Correct Answer: E
QUESTION 14
Refer to the exhibit What two things can the technician detemine by successfully pinging from this computer to the IP address 172.16.236.1? (Choose two)
A. The network card on the computer is functioning correctly/
B. The default static route on the gateway router is correctly configured.
C. The correct default gateway IP address is configured on the computer.
D. The device with the IP address 172.16.236.1 is reachable over the network.
E. The default gateway at 172.16.236.1 is able to forward packets to the internet.

Correct Answer: AD
QUESTION 15
Refer to the exhibit

Why did the device return this message?
A. The command requires additional options or parameters/
B. There is no show command that starts with ru.
C. The command is being executed from the wrong router mode.
D. There is more than one show command that starts with the letters ru.
Correct Answer: D QUESTION 16
What is the purpose of flow control?
A. To ensure data is retransmitted if an acknowledgement is not received/
B. To reassemble segments in the correct order at the destination device.
C. To provide a means for the receiver to govern the amount of data sent by the sender.
D. To regulate the size of each segment.
Correct Answer: C QUESTION 17
Refer to the exhibit

A. 1 = A, 2 = C, 3 = E, 4 = B
B. 1 = E, 2 = C, 3 = B, 4 = D
C. 1 = A, 2 = D, 3 = B, 4 = B
D. 1 = E, 2 = C, 3 = D, 4 = A
Correct Answer:

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100-101 exam

Exam QUESTION 1
Which three statements are true about the operation of a full-duplex Ethernet network? (Choose three.)
A. There are no collisions in full-duplex mode.
B. A dedicated switch port is required for each full-duplex node.
C. Ethernet hub ports are preconfigured for full-duplex mode.
D. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E. The host network card and the switch port must be capable of operating in full-duplex mode.

Correct Answer: ABE QUESTION 2
Select and Place:

Correct Answer:
QUESTION 3
Which OSI layer header contains the address of a destination host that is on another network?
A. application
B. session
C. transport
D. network
E. data link
F. physical
Correct Answer: D
QUESTION 4
Which layer of the TCP/IP stack combines the OSI model physical and data link layers?
A. Internet layer
B. transport layer
C. application layer
D. network access layer
Correct Answer: D
QUESTION 5
Which protocol uses a connection-oriented service to deliver files between end systems?
A. TFTP
B. DNS
C. FTP
D. SNMP
E. RIP
Correct Answer: C
QUESTION 6
Refer to the exhibit.

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?
A. broadcast domains
B. repeater domains
C. Ethernet collisions
D. signal amplification
E. Ethernet broadcasts
Correct Answer: C
QUESTION 7
Refer to the exhibit.

If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?
A. 10.168.10.99
B. 10.168.11.88
C. A1:A1:A1:A1:A1:A1
D. B2:B2:B2:B2:B2:B2
E. C3:C3:C3:C3:C3:C3
F. D4:D4:D4:D4:D4:D4
Correct Answer: E

100-101 exam

QUESTION 8
Refer to the exhibit.

HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
A. abcd.1123.0045
B. 192.168.7.17
C. aabb.5555.2222

D. 192.168.1.1
E. abcd.2246.0035

Correct Answer: E
QUESTION 9
Which network device functions only at Layer 1 of the OSI model?

A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Correct Answer: B
QUESTION 10
Refer to the exhibit.

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?
A. 10.1.0.1
B. 10.1.0.5
C. 10.1.0.6
D. 10.1.0.14
E. 10.1.1.16
F. 10.1.2.8

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