Here are the answers to Thursday's CCNA, CCNP, and Network+ exam questions!

CCNA:

A router running RIP detects a down network. What action will it take?

A. None.

B. The router will advertise the route with a metric of 16.

C. The router will immediately stop advertising the route.

D. The router will advertise the route with a metric of 255.

Answer: B. This is necessary due to the slow convergence of RIP, and is called route poisoning.


Network+ :

Which of the following devices are specifically designed to prevent or lessen attenuation?

A. hub

B. router

C. switch

D. repeater

E. bridge

Answer: A, D. Repeaters and hubs (which are basically multiport repeaters) help to lessen the effects of attenuation, the gradual weakening of an electric signal as it travels along a cable.


CCNP / BSCI:

Short answer: What BGP attribute's possible values are ?, i , and e ?

Answer: Those are the three possible values of the Origin code. A lower-case i indicates an internal BGP route, a lower-case e indicates an eBGP route, and the question mark means the route's true origin is unknown. That usually means the route was learned via redistribution.

CCNP / BCRAN:

Short answer: Name the PRI framing types.

Answer: The PRI framing types are Super Frame (SF), Extended Super Frame (ESF), and Cyclic Redundancy Check 4 (CRC4). SF is the default.

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.


CCNP / CIT:

Which of the following show you the number of matches made against ACLs running on the router?

A. show ip access-list

B. show acl match

C. show list matching

D. show access-list

Answers: A, D. Both of those commands will give you the desired information.


See you later this morning with a new batch of CCNA, CCNP, and Network+ questions, along with the answers to Friday's questions!

To your certification exam success,

Chris Bryant
CCIE #12933
www.thebryantadvantage.com