Here are the answers to Friday's Cisco certification exam practice questions!


CCNA:

By default, what traffic does a Cisco router consider to be "interesting traffic"?

A. None.

B. All IP traffic.

C. All ICMP traffic.

D. Pings

E. Pings and traceroutes

Answer: A. Remember, an ISDN connection is a long-distance phone call, so we don't want just any traffic to bring the line up. As a result, there is no default traffic type that will bring up the line.


CCNP / BSCI:

The default OSPF cost is 1 for which of the following interface types?

A. Token Ring

B. T1 Serial Link

C. 100 MBPS Ethernet

D. ATM

E. FDDI

F. E1 Serial Link

Answer: C, D, E.


CCNP / BCMSN:

Short answer: What term describes the fast / slow / fast transmission issue that can arise from use of Tail Drop?

Answer: This is global synchronization.



CCNP / BCRAN:

Given a CIR of 128 KBPS and a time interval of 1/8th of a second, what is the Bc?

A. 16000 BPS

B. 16000 bits

C. 32000 BPS

D. 32000 bits

E. 8000 BPS

F. 8000 bits

Answer: B. The formula in this case is 128000 * .125, which equals 16000. The Bc is expressed in bits, not bits per second.


CCNP / CIT:

Short answer: You've opened a case with Cisco TAC. The network is degraded, but business processes are operating for the most part. What priority level will TAC most likely assign this case?

Answer: The network is degraded, but business processes are operating for the most part. This describes a Priority 3 case.

I'll see you later this morning with Saturday's Cisco CCNA and CCNP certification questions!

To your success,

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