Answers To Saturday's CCNA / CCNP Practice Questions

CCNA:

Which two of the following phrases best describe fragment-free switching?

A. No error checking

B. Some error checking

C. Looks only at destination MAC before beginning to forward the frame

D. Looks at the first 64 bytes of the frame before beginning to forward the frame

ANSWER: B, D. Fragment-free switching looks at the first 64 bytes of the frame before forwarding it. This offers limited error protection, since most frame errors occur within the first 64 bytes. It's not as thorough as store-and-forward, which runs a Cyclical Redundancy Check before forwarding a frame, but it's better than cut-through switching, which offers no error checking.


BSCI:

By default, how does an OSPF routing table indicate routes that were learned via redistribution?

A. O E1

B. O E2

C. O EX

D. O

ANSWER: B. OSPF routes learned via redistribution are marked as O E2, or External type-2.

BCMSN:

What is the range of physical connections that can be bundled into an Etherchannel?

A. One to eight

B. Two to eight

C. Two to ten

D. Three to eight

E. Three to ten

ANSWER: B. Etherchannels can contain two to eight physical channels.

Chris Bryant
CCIE #12933
www.thebryantadvantage.com