Thursday, May 01, 2008

Welcome back! It's May 1, 2008, and here are the answers to yesterday's Cisco practice exam questions!

CCENT Certification:

What is the administrative distance of a directly connected route?

Answer: Zero.

CCNA Certification:

In the configuration shown below, what does the number "1" refer to?

R3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#router ospf 1

Answer: That's the OSPF process number. (Not the Autonomous System number - OSPF doesn't use those, EIGRP does.)

CCNP Certification / BSCI Exam:

Cisco OSPF design guidelines state that a router should be in no more than how many areas?

Answer: Cisco OSPF design guidelines suggest a router have interfaces in no more than three areas.

CCNP Certification / BCMSN Exam:

Identify the true statements regarding RED.

A. Congestion is detected early.

B. Congestion is detected only when the queue is actually filled to capacity.

C. CoS and IP Prec values can be used to identify the data that should be dropped first.

D. CoS can be used to identify the data that should be dropped first, but not IP Prec.

E. IP Prec can be used to identify the data that should be dropped first, but not CoS.

F. Neither CoS nor IP Prec can be used by RED.

Answers: A, F. RED does detect congestion early - after all, RED stands for Random Early Detection - but the key word there is "random". Neither CoS nor IP Precedence is considered by RED, as the traffic that is dropped is indeed random.

CCNP Certification / ISCW Exam:

What term does MPLS give to a router that has all of its interfaces in the MPLS network, and that performs label switching?

Answer: That's a Label Switch Router (LSR).

CCNP Certification / ONT Exam:

Cisco routers support three payload compression algorithms. Name them.

Answer: Stacker, Predictor, and Microsoft Point-To-Point Compression.

New questions and a new CCNP ISCW exam tutorial later today!

To your success,

Chris Bryant
CCIE #12933

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