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

CCNA:

An EIGRP router has one Successor route to a remote destination, and no Feasible Successor. The Successor route goes down. What happens now?

A. The router holds a DUAL election to choose a new route.

B. The router sends a DUAL query to all its EIGRP neighbors.

C. DUAL will generate a default route to use until the Successor returns.

D. A routing loop will form.

Answer: B. The router that lost the Successor route sends DUAL Query packets to its neighbors.


CCNP / BSCI:

A BGP route displays a code of "?". What does this most likely mean?

A. The route was learned by abnormal BGP processes.

B. The route is corrupt.

C. The route was learned by BGP via redistribution.

D. The route is being computed by BGP's algorithm and should be usable in just a few minutes.

Answer: C. An origin code of "?" indicates the route was learned via redistribution. The official term for this code is "unknown".

CCNP / BCMSN:

In an Etherchannel, what mathematical operation decides the physical channel that will actually carry the data from a particular source to a particular destination?

A. AND

B. OR

C. XOR

D. Boolean

Answer: C. The official name of this operation is "XOR".


More CCNA and CCNP questions later today!

To your success in 2007 and beyond,

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