Which two of these Cisco Catalyst security features offer the best ways to prevent ARP cache poisoning? (Choose two.)
A. Dynamic ARP Inspection
B. port security
C. MAC address notification
D. DHCP snooping
F. 802.1x authentication
Correct Answer: AD
Which one of the following is not a valid RADIUS packet type?
Correct Answer: B
Which two of these statements about SMTP and ESMTP are the most correct? (Choose two.) ActualTests.com
A. Open mail relays are often used for spamming.