Tag: cisco 100-101

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QUESTION 79
Which two options will help to solve the problem of a network that is suffering a broadcast storm? (Choose two.)
A. a bridge
B. a router
C. a hub
D. a Layer 3 switch
E. an access point

Correct Answer: BD
QUESTION 80
What does a host on an Ethernet network do when it is creating a frame and it does not have the destination address?
A. drops the frame
B. sends out a Layer 3 broadcast message
C. sends a message to the router requesting the address
D. sends out an ARP request with the destination IP address

Correct Answer: D
QUESTION 81
A switch has 48 ports and 4 VLANs. How many collision and broadcast domains exist on the switch (collision, broadcast)?
A. 4, 48
B. 48, 4
C. 48, 1
D. 1, 48
E. 4, 1
Correct Answer: B
QUESTION 82
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 83
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 84
Refer to the exhibit.
PC1 pings PC2. What three things will CORE router do with the data that is received from PC1? (Choose three.)

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 85
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 86
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 87
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 88
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 89
Refer to the exhibit.
What two things can the technician determine 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 90
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 91
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 92
OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? (Chose three)
A. Each OSPF area requires a loopback interface to be configured
B. Areas may be assigned any number from 0 to 65535
C. Area 0 is called the backbone area
D. Hierarchical OSPF networks do not require multiple areas
E. Multiple OSPF areas must connect to area 0
F. Single area OSPF networks must be configured in area 1

Correct Answer: BCE
QUESTION 93
Part of the OSPF network is shown below:

Configuration exhibit:
R1 routing commands:
ip route 0.0.0.0 0.0.0.0 serial0/0 router ospf 1 network 172.16.100.0 0.0.0.3 area 0 network 172.16.100.64 0.0.0.63 area 0 network 172.16.100.128 0.0.0.31 area 0 default-information originate
You work as a network technician, study the exhibits carefully. Assume that all router interfaces are operational and correctly configured. In addition, assume that OSPF has been correctly configured on router R2. How will the default route configured on R1 affect the operation of R2?
A. Any packet destined for a network that is not directly connected to router R2 will be dropped immediately.
B. Any packet destined for a network that is not directly connected to router R1 will be dropped.
C. Any packet destined for a network that is not directly connected to router R2 will be dropped immediately because of the lack of a gateway on R1.
D. The network directly connected to a router R2 will not be able to communicate with the 172.16.100.0,
172.16.100.28 and 172.16.100.64 subnetworks.
E. Any packet destined for a network that is not referenced in the routing table of router R2 will be directed to R1. R1 will then send that packet back to R2 and a routing loop will occur.

Correct Answer: E
QUESTION 94
Refer to the exhibit.
Which two statements are true about the loopback address that is configured on RouterB? (Choose two)

A. It ensures that data will be forwarded by RouterB.
B. It provides stability for the OSPF process on RouterB.
C. It specifies that the router ID for RouterB should be 10.0.0.1.
D. It decreases the metric for routes that are advertised from RouterB.
E. It indicates that RouterB should be elected the DR for the LAN.

Correct Answer: C
QUESTION 95
Which characteristics are representative of a link-state routing protocol? (Choose three)
A. provides common view of entire topology
B. exchanges routing tables with neighbors
C. calculates shortest path
D. utilizes event-triggered updates
E. utilizes frequent periodic updates

Correct Answer: ACD
QUESTION 96

A network associate has configured OSPF with the command:
City(config-router)# network 192.168.12.64 0.0.0.63 area 0 After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three)
A. FastEthernet0/0
B. FastEthernet0/1
C. Serial0/0
D. Serial0/1.102
E. Serial0/1.103
F. Serial0/1.104

Correct Answer: BCD
QUESTION 97
When running OSPF, what would cause router A not to form an adjacency with router B?

A. The loopback addresses are on different subnets.
B. The values of the dead timers on the routers are different.
C. Route summarization is enabled on both routers.
D. The process identifier on router A is different than the process identifier on router.

Correct Answer: B QUESTION 98
Refer to the exhibit.
The network is converged. After link-state advertisements are received from Router_A, what information will Router_E contain in its routing table for the subnets 208.149.23.64 and 208.149.23.96?

A. 208.149.23.64[110/13] via 190.173.23.10, 00:00:00:07, FastEthernet0/0 208.149.23.96[110/13] via 190.173.23.10, 00:00:00:16, FastEthernet0/0
B. 208.149.23.64[110/1] via 190.173.23.10, 00:00:00:07, Serial1/0 208.149.23.96[110/3] via 190.173.23.10, 00:00:00:16, FastEthernet0/0
C. 208.149.23.64[110/13] via 190.173.23.10, 00:00:00:07, Serial1/0 208.149.23.96[110/13] via 190.173.23.10, 00:00:00:16, Serial1/0 208.149.23.96[110/13] via 190.173.23.10, 00:00:00:16, FastEthernet0/0
D. 208.149.23.64[110/13] via 190.173.23.10, 00:00:00:07, Serial1/0 208.149.23.96[110/13] via 190.173.23.10, 00:00:00:16, Serial1/0

Correct Answer: A
QUESTION 99
Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0? (Choose two)
A. Router(config)#router ospf 1
B. Router(config)#router ospf 0
C. Router(config)#router ospf area 0
D. Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
E. Router(config-router)#network 192.168.16.0 0.0.0.255 0
F. Router(config-router)#network 192.168.16.0 255.255.255.0 area 0
Correct Answer: AD
QUESTION 100
Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
A. Bandwidth, Delay and MTU
B. Bandwidth
C. Bandwidth and MTU
D. Bandwidth, MTU, Reliability, Delay and Load

Correct Answer: B QUESTION 101
Refer to the exhibit.
Why are two OSPF designated routers identified on Core-Router?
A. Core-Router is connected to more than one multi-access network.
B. The router at 208.149.23.130 is a secondary DR in case the primary fails.
C. Two router IDs have the same OSPF priority and are therefore tied for DR election
D. The DR election is still underway and there are two contenders for the role.

Correct Answer: A
QUESTION 102
What is the default maximum number of equal-cost paths that can be placed into the routing of a Cisco OSPF router?
A. 16
B. 2
C. Unlimited

D. 4
Correct Answer: D
QUESTION 103
What is the OSPF default frequency, in seconds, at which a Cisco router sends hello packets on a multiaccess network?
A. 10
B. 40
C. 30
D. 20
Correct Answer: A
QUESTION 104
Refer to the exhibit.
The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)

A. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
B. Ensure that cables A and B are straight-through cables.
C. Ensure cable A is plugged into a trunk port.
D. Ensure the switch has power.
E. Reboot all of the devices.
F. Reseat all cables.
Correct Answer: BDF
QUESTION 105
Which command can you use to manually assign a static IPV6 address to a router interface?
A. ipv6 address PREFIX_1::1/64
B. ipv6 autoconfig 2001:db8:2222:7272::72/64
C. ipv6 autoconfig
D. ipv6 address 2001:db8:2222:7272::72/64

Correct Answer: D
QUESTION 106
The network administrator is using a Windows PC application that is called putty.exe for remote communication to a switch for network troubleshooting. Which two protocols could be used during this communication? (Choose two.)
A. SNMP
B. HTTP
C. Telnet

D. RMON
E. SSH
Correct Answer: CE
QUESTION 107
What should be part of a comprehensive network security plan?
A. Allow users to develop their own approach to network security.
B. Physically secure network equipment from potential access by unauthorized individuals.
C. Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten.
D. Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported.
E. Minimize network overhead by deactivating automatic antivirus client updates.
Correct Answer: B
QUESTION 108
Which two of these statements are true of IPv6 address representation? (Choose two.)
A. There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
B. A single interface may be assigned multiple IPv6 addresses of any type.
C. Every IPv6 interface contains at least one loopback address.
D. The first 64 bits represent the dynamically created interface ID.
E. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

Correct Answer: BC
QUESTION 109
A network administrator cannot connect to a remote router by using SSH. Part of the show interfaces command is shown.
router#show interfaces Serial0/1/0 is up, line protocol is down
At which OSI layer should the administrator begin troubleshooting?
A. physical
B. data link
C. network
D. transport
Correct Answer: B
QUESTION 110
Which option is a valid IPv6 address?
A. 2001:0000:130F::099a::12a
B. 2002:7654:A1AD:61:81AF:CCC1
C. FEC0:ABCD:WXYZ:0067::2A4
D. 2004:1:25A4:886F::1
Correct Answer: D
QUESTION 111
What is the purpose of the switchport command?
Switch(config-if)# switchport port-security maximum 1Switch(config-if)# switchport port-security mac-address 0018.DE8B.4BF8
A. It ensures that only the device with the MAC address 0018.DE8B.4BF8 will be able to connect to the port that is being configured.
B. It informs the switch that traffic destined for MAC address 0018.DE8B.4BF8 should only be sent to the port that is being configured.
C. It will act like an access list and the port will filter packets that have a source or destination MAC of 0018.DE8B.4BF8.
D. The switch will shut down the port of any traffic with source MAC address of 0018.DE8B.4BF8.
Correct Answer: A
QUESTION 112
How many bits are contained in each field of an IPv6 address?
A. 24
B. 4
C. 8
D. 16
Correct Answer: D
QUESTION 113
Which three approaches can be used while migrating from an IPv4 addressing scheme to an IPv6 scheme (Choose three)
A. static mapping of IPv4 address to IPv6 addresses
B. configuring IPv4 tunnels between IPv6 islands
C. use DHCPv6 to map IPv4 addresses to IPv6 addresses
D. use proxying and translation (NAT-PT) to translate IPv6 packets into IPv4 packets
E. configure IPv6 directly
F. enable dual-stack routing

Correct Answer: BDF
QUESTION 114
Which statement about IPv6 is true?
A. Addresses are not hierarchical and are assigned at random.
B. Only one IPv6 address can exist on a given interface.
C. There are 2.7 billion addresses available.
D. Broadcasts have been eliminated and replaced with multicasts.

Correct Answer: D
QUESTION 115
What are two recommended ways of protecting network device configuration files from outside network security threats? (Choose two.)
A. Allow unrestricted access to the console or VTY ports.
B. Use a firewall to restrict access from the outside to the network devices.
C. Always use Telnet to access the device command line because its data is automatically encrypted.
D. Use SSH or another encrypted and authenticated transport to access device configurations.
E. Prevent the loss of passwords by disabling password encryption.
Correct Answer: BD
QUESTION 116
A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
A. decrease the window size
B. use a different source port for the session
C. decrease the sequence number
D. obtain a new IP address from the DHCP server
E. start a new session using UDP

Correct Answer: A
QUESTION 117
Which command enables IPv6 forwarding on a cisco router?
A. ipv6 host
B. ipv6 unicast-routing
C. ipv6 local
D. ipv6 neighbor

Correct Answer: B
QUESTION 118
Identify the four valid IPv6 addresses. (Choose four.)
A. ::
B. ::192:168:0:1
C. 2000::
D. 2001:3452:4952:2837::
E. 2002:c0a8:101::42
F. 2003:dead:beef:4dad:23:46:bb:101
Correct Answer: ABEF
QUESTION 119
Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.)
A. Global addresses start with 2000::/3.
B. Link-local addresses start with FE00:/12.
C. Link-local addresses start with FF00::/10.
D. There is only one loopback address and it is ::1.
E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

Correct Answer: AD
QUESTION 120
A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?
Router(config)# router ospf 1Router(config-router)# network 10.0.0.0 255.0.0.0 area 0
A. The process id is configured improperly.
B. The OSPF area is configured improperly.
C. The network wildcard mask is configured improperly.
D. The network number is configured improperly.
E. The AS is configured improperly.
F. The network subnet mask is configured improperly.
Correct Answer: C
QUESTION 121
Which statement is true?
A. An IPv6 address is 64 bits long and is represented as hexadecimal characters.
B. An IPv6 address is 32 bits long and is represented as decimal digits.
C. An IPv6 address is 128 bits long and is represented as decimal digits.
D. An IPv6 address is 128 bits long and is represented as hexadecimal characters.

Correct Answer: D
QUESTION 122
A network administrator is connecting PC hosts A and B directly through their Ethernet interfaces as shown in the graphic. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts? (choose two.)

A. A crossover cable should be used in place of the straight-through cable.
B. A rollover cable should be used in place of the straight-through cable.
C. The subnet masks should be set to 255.255.255.192
D. A default gateway needs to be set on each host.
E. The hosts must be reconfigured to use private IP addresses for direct connections of this type.
F. The subnet masks should be set to 255.255.255.0

Correct Answer: AF
QUESTION 123
Refer to the exhibit.
A technician pastes the configurations in the exhibit into the two new routers shown. Otherwise, the routers are configured with their default configurations.
A ping from Host1 to Host 2 fails, but the technician is able to ping the S0/0 interface of R2 from Host 1. The configurations of the hosts have been verified as correct. What could be the cause of the problem?

A. The serial cable on R1 needs to be replaced.
B. The interfaces on R2 are not configured properly
C. R1 has no route to the 192.168.1.128 network.
D. The IP addressing scheme has overlapping subnetworks.
E. The ip subnet-zero command must be configured on both routers.

Correct Answer: C
QUESTION 124
Refer to the exhibit.
Serial 0/0 does not respond to a ping request from a host on the FastEthernet 0/0 LAN. How can this problem be corrected?

A. Enable the Serial 0/0 interface.
B. Correct the IP address for Serial 0/0.
C. Correct the IP address for FastEthernet 0/0
D. Change the encapsulation type on Serial 0/0
E. Enable autoconfiguration on the Serial 0/0 interface

Correct Answer: A
QUESTION 125
Refer to the exhibit.
What kind of cable should be used to make each connection that is identified by the numbers shown?

A. 1 – Ethernet Crossover cable 2 – Ethernet straight-through cable 3 – Fiber Optic cable 4 – Rollover cable
B. 1 – Ethernet straight-through cable 2 – Ethernet straight-through cable 3 – Serial cable 4 – Rollover cable
C. 1 – Ethernet rollover cable 2 – Ethernet crossover cable 3 – Serial cable 4 – Null-modem cable
D. 1 – Ethernet straight-through cable 2 – Ethernet Crossover cable 3 – Serial cable 4 – Rollover cable
E. 1 – Ethernet straight-through cable 2 – Ethernet Crossover cable 3 – Serial cable 4 – Ethernet Straight-through cable

Correct Answer: B
QUESTION 126
Which of the following are types of flow control? (choose three.)
A. buffering
B. cut-through
C. windowing
D. congestion avoidance
E. load balancing

Correct Answer: ACD
QUESTION 127
If an ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is the maximum number of hosts allowed on this subnet?
A. 1024
B. 2046
C. 4094
D. 4096
E. 8190
Correct Answer: C QUESTION 128
Refer to the exhibit.
Why was this message received?
A. No VTY password has been set.
B. No enable password has been set.
C. No console password has been set.
D. No enable secret password has been set.
E. The login command has not been set on CON 0
F. The login command has not been set on the VTY ports.

Correct Answer: A
QUESTION 129
Refer to the exhibit.
How many collision domains are shown?

A. one
B. two
C. three
D. four
E. six
F. twelve

Correct Answer: B
QUESTION 130
Refer to the exhibit.
After configuring two interfaces on the HQ router, the network administrator notices an error message. What must be done to fix this error?

A. The serial interface must be configured first.
B. The serial interface must use the address 192.168.1.2
C. The subnet mask of the serial interface should be changed to 255.255.255.0
D. The subnet mask of the FastEthernet interface should be changed to 255.255.255.240
E. The address of the FastEthernet interface should be changed to 192.168.1.66

Correct Answer: D
QUESTION 131
What does the “Inside Global” address represent in the configuration of NAT?
A. the summarized address for all of the internal subnetted addresses
B. the MAC address of the router used by inside hosts to connect to the Internet
C. a globally unique, private IP address assigned to a host on the inside network
D. a registered address that represents an inside host to an outside network

Correct Answer: D
QUESTION 132
Two routers named Atlanta and Brevard are connected by their serial interfaces as shown in the exhibit, but there is no data connectivity between them. The Atlanta router is known to have a correct configuration. Given the partial configurations shown in the exhibit, what is the problem on the Brevard router that is causing the lack of connectivity?

A. A loopback is not set.
B. The IP address is incorrect.
C. The subnet mask is incorrect.
D. The serial line encapsulations are incompatible.
E. The maximum transmission unit (MTU) size is too large.
F. The bandwidth setting is incompatible with the connected interface.

Correct Answer: B
QUESTION 133
Which of the following statements are TRUE regarding Cisco access lists? (Choose two.)
A. In an inbound access list, packets are filtered as they enter an interface.
B. In an inbound access list, packets are filtered before they exit an interface.
C. Extended access lists are used to filter protocol-specific packets.
D. You must specify a deny statement at the end of each access list to filter unwanted traffic.
E. When a line is added to an existing access list, it is inserted at the beginning of the access list.

Correct Answer: AC
QUESTION 134
Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.)
A. An IPv6 address is divided into eight 16-bit groups.
B. A double colon (::) can only be used once in a single IPv6 address.
C. IPv6 addresses are 196 bits in length.
D. Leading zeros cannot be omitted in an IPv6 address.
E. Groups with a value of 0 can be represented with a single 0 in IPv6 address.

Correct Answer: ABE
QUESTION 135
Which of the following IP addresses are valid Class B host addresses if a default Class B mask is in use? (Choose two.)
A. 10.6.8.35
B. 133.6.5.4
C. 192.168.5.9
D. 127.0.0.1
E. 190.6.5.4
Correct Answer: BE
QUESTION 136
From which of the following attacks can Message Authentication Code (MAC) shield your network?
A. DoS
B. DDoS
C. spoofing
D. SYN floods
Correct Answer: C QUESTION 137
Refer to the exhibit.
A company wants to use NAT in the network shown. Which commands will apply the NAT configuration to the proper interfaces? (Choose two.)

A. R1(config)# interface serial0/1 R1(config-if)# ip nat inside
B. R1(config)# interface serial0/1 R1(config-if)# ip nat outside
C. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside
D. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat outside
E. R1(config)# interface serial0/1 R1(config-if)# ip nat outside source pool 200.2.2.18 255.255.255.252
F. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside source 10.10.0.0 255.255.255.0
Correct Answer: BC
QUESTION 138
How many addresses will be available for dynamic NAT translation when a router is configured with the following commands?
Router(config)#ip nat pool TAME 209.165.201.23 209.165.201.30 netmask 255.255.255.224 Router(config)#ip nat inside source list 9 pool TAME
A. 7
B. 8
C. 9
D. 10
E. 24
F. 32
Correct Answer: B
QUESTION 139
Read the scenario and sort the the appropriate commands in order to configure the router.
On the real simulation during the exam you will be required to type the actual commands in order to
configure the router.
Build List and Reorder: Correct Answer:

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QUESTION 1
Which two statements describe the operation of the CSMA/CD access method? (Choose two.)
A. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
C. The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.
D. After a collision, the station that detected the collision has first priority to resend the lost data.
E. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.
Correct Answer: BE
QUESTION 2
Which address type does a switch use to make selective forwarding decisions?
A. source IP address
B. destination IP address
C. source and destination IP address
D. source MAC address
E. destination MAC address
Correct Answer: E
QUESTION 3
On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?
A. RTP
B. TCP
C. CDP
D. UDP
Correct Answer: C
QUESTION 4
A switch receives a frame on one of its ports. There is no entry in the MAC address table for the destination MAC address. What will the switch do with the frame?
A. drop the frame
B. forward it out of all ports except the one that received it
C. forward it out of all ports
D. store it until it learns the correct port
Correct Answer: B
QUESTION 5
At which layer of the OSI model does the protocol that provides the information that is displayed by the show cdp neighbors command operate?
A. application
B. transport
C. network
D. physical
E. data link
Correct Answer: E
QUESTION 6
Which two characteristics apply to Layer 2 switches? (Choose two.)
A. increases the number of collision domains
B. decreases the number of collision domains
C. implements VLAN
D. decreases the number of broadcast domains
E. uses the IP address to make decisions for forwarding data packets
Correct Answer: AC
QUESTION 7
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 8
Which two characteristics describe the access layer of the hierarchical network design model? (Choose two.)
A. layer 3 support
B. port security
C. redundant components
D. VLANs
E. PoE
Correct Answer: BD

QUESTION 9
What is the purpose of assigning an IP address to a switch?
A. provides local hosts with a default gateway address
B. allows remote management of the switch
C. allows the switch to respond to ARP requests between two hosts
D. ensures that hosts on the same LAN can communicate with each other
Correct Answer: B QUESTION 10

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 11
What is the subnet address for the IP address 172.19.20.23/28?
A. 172.19.20.0
B. 172.19.20.15
C. 172.19.20.16
D. 172.19.20.20
E. 172.19.20.32
Correct Answer: C
QUESTION 12
What is the subnet address of 172.16.159.159/22?
A. 172.16.0.0
B. 172.16.128.0
C. 172.16.156.0
D. 172.16.159.0
E. 172.16.159.128
F. 172.16.192.0
Correct Answer: C
QUESTION 13
An administrator is working with the 192.168.4.0 network, which has been subnetted with a /26 mask. Which two addresses can be assigned to hosts within the same subnet? (Choose two.)
A. 192.168.4.61
B. 192.168.4.63
C. 192.168.4.67
D. 192.168.4.125
E. 192.168.4.128
F. 192.168.4.132
Correct Answer: CD
QUESTION 14
What is the network address for the host with IP address 192.168.23.61/28?
A. 192.168.23.0
B. 192.168.23.32
C. 192.168.23.48
D. 192.168.23.56

E. 192.168.23.60
Correct Answer: C
QUESTION 15
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 16
Which two statements describe the IP address 10.16.3.65/23? (Choose two.)
A. The subnet address is 10.16.3.0 255.255.254.0.
B. The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
C. The last valid host address in the subnet is 10.16.2.254 255.255.254.0
D. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
E. The network is not subnetted.

Correct Answer: BD
QUESTION 17
Given a Class C IP address subnetted with a /30 subnet mask, how many valid host IP addresses are available on each of the subnets?
A. 1
B. 2
C. 4
D. 8
E. 252
F. 254
Correct Answer: B
QUESTION 18
Which one of the following IP addresses is the last valid host in the subnet using mask 255.255.255.224?
A. 192.168.2.63
B. 192.168.2.62
C. 192.168.2.61
D. 192.168.2.60

E. 192.168.2.32
Correct Answer: B QUESTION 19
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 20
Which statements accurately describe CDP? (Choose three.)
A. CDP is an IEEE standard protocol.
B. CDP is a Cisco proprietary protocol.
C. CDP is a datalink layer protocol.
D. CDP is a network layer protocol.
E. CDP can discover directly connected neighboring Cisco devices.
F. CDP can discover Cisco devices that are not directly connected.

Correct Answer: BCE
QUESTION 21
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 22
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 23
Refer to the exhibit.
The two routers have had their startup configurations cleared and have been restarted. At a minimum, what must the administrator do to enable CDP to exchange information between R1 and R2?

A. Configure the router with the cdp enable command.
B. Enter no shutdown commands on the R1 and R2 fa0/1 interfaces.
C. Configure IP addressing and no shutdown commands on both the R1 and R2 fa0/1 interfaces.
D. Configure IP addressing and no shutdown commands on either of the R1 or R2 fa0/1 interfaces.

Correct Answer: B
QUESTION 24
What two things does a router do when it forwards a packet? (Choose two.)
A. switches the packet to the appropriate outgoing interfaces
B. computes the destination host address
C. determines the next hop on the path
D. updates the destination IP address
E. forwards ARP requests

Correct Answer: AC
QUESTION 25
Which two of these functions do routers perform on packets? (Choose two.)
A. examine the Layer 2 headers of inbound packets and use that information to determine the next hops for the packets
B. update the Layer 2 headers of outbound packets with the MAC addresses of the next hops
C. examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets
D. examine the Layer 3 headers of inbound packets and use that information to determine the complete paths along which the packets will be routed to their ultimate destinations
E. update the Layer 3 headers of outbound packets so that the packets are properly directed to valid next hops
F. update the Layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations
Correct Answer: BC
QUESTION 26
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 27
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 28
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 29
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 30
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 31
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 32
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 33
When configuring NAT, the Internet interface is considered to be what?
A. local
B. inside
C. global
D. outside
Correct Answer: D
QUESTION 34
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 35
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 36
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 37
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 38
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 39
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 40
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

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