CCNA、CCNP、CCIE模拟试题(三)

You want to control the designation of the spanning-tree root bridge in the ABC network. What should you do?

A. By enabling uplink-fast on the ports of the desired switch.
C. By setting a lower MAC address on the designated switch.

24.You are a technician at ABC. You receive a report from several ABC users who
when browsing the Internet. You investigate the complaint by checking the output
success and failures messages, when attempting to contact the email server. A
time out messages.
the cause of the slow response time?

A. Bottom-up approach
C. Divide and conquer approach
E. Top-down rule-out approach

25.You are a technician at ABC.com. Your newly appointed ABC trainee wants to
What would your reply be? (Choose all that apply.)

A. Diffusing Update Algorithm
C. Higher routing update overhead
E. Lower routing update overhead

CCIE

26.You are the network administrator at ABC. You are troubleshooting a network
through the Internet. However, Traceroute does not work.
Router 1. An entry in the access-list states "access-list 101 permit tcp any any".

entry may you need to be added to the access-list in order to get traceroute to

A. access-list 101 permit udp any any
any any port-unreachable
any any net-unreachable