Here are the answers to Sunday's Cisco certification training questions!

CCNA:

You run "show interface serial0" on a router. Which of the following console outputs indicates a possible LMI mismatch?

A. Serial0 is up, line protocol is up

B. Serial0 is up, line protocol is down

C. Serial0 is down, line protocol is down

D. Serial0 is down, line protocol is up

E. Serial0 is administratively down, line protocol is up

F. Serial0 is administratively down, line protocol is down

Answer: B. A logical mismatch such as an LMI mismatch is indicated by a downed line protocol. The physical interface will be up.


CCNP / BSCI:

Short answer:

What IPv6 migration method is designed to allow a host to use both IPv4 and IPv6-based applications?

Answer: Dual stack.


CCNP / BCMSN:

RED and WRED are most effective under what conditions?

A. When the traffic is UDP-based

B. When the traffic is TCP-based

C. When the traffic is either UDP- or TCP-based

D. When the traffic is neither UDP- nor TCP-based


Answer: B. Actually, RED and WRED are only effective when the traffic in question is TCP-based!

See you with new questions later today!

To your certification exam success,

Chris Bryant
CCIE #12933
http://www.thebryantadvantage.com/