Friday, February 23, 2007

Welcome back! Here are the answers to Thursday's CCNA and CCNP questions!


On the blank console line shown below, what command is best to prevent OSPF hellos from keeping the ISDN line up?

R2(config)#interface bri0

Answer: The command ip ospf demand-circuit will prevent OSPF hellos from being considered interesting traffic.


On an ABR, the full command to configure under the OSPF router process to make Area 781 a totally stub area is ____________.

Answer: area 781 stub no-summary. This command is required only on the ABR, but the other routers in the area must still be configured as stub.


A switch port has just received a dynamic VLAN membership assignment. What other port feature will be enabled as a result?

A. Portfast

B. Uplinkfast

C. Backbonefast

D. Port-based authentication

E. Port security

Answer: A. Our old pal portfast will be enabled by default.

New questions posted later today - and questions for ISCW, ONT, A+, Network+, and Microsoft Vista certifications are in the queue!

To your certification exam success,

Chris Bryant
CCIE #12933

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