It's November 1 - not sure what that means, but it's Wednesday, and that means I need to give you the answers for yesterday's Cisco and CompTIA certification exam practice questions!

CCNA:

What does the switch use to build a dynamic MAC address table?

A. destination MAC addresses of incoming frames

B. source MAC addresses of incoming frames

C. ARP

D. Reverse ARP

E. Inverse ARP

Answer: B. A switch examines the source MAC address of all incoming frames to see if there's an entry for that address in the MAC address table.



Network+ :

What is the speed of a T1 line?

A. 1544 KBPS

B. 1544 MBPS

C. 2048 KBPS

D. 2048 MBPS

Answer: A. A T1 line runs at 1544 KBPS, or 1.544 MBPS. That period makes a big difference! E1 lines run at 2048 KBPS.



CCNP / BCSI:

Cisco OSPF design guidelines suggest a router have no more than ____________ neighbors.

A. 20

B. 40

C. 60

D. 80

E. 100

Answer: C. I personally think that's a lot of OSPF neighbors for the average router, but then again, Cisco didn't ask me!


CCNP / BCMSN:

On what switches should Uplinkfast be running on your network?

A. Switches in the access layer.

B. Switches in the core layer.

C. Switches in the distribution layer.

D. All switches in the network.

Answer: A. Uplinkfast is really a wiring-closet switch feature and is designed for use on access-layer switches.



CCNP / BCRAN:

Identify the true statements regarding RADIUS.

A. It's Cisco-proprietary.

B. It's an open standard.

C. It runs on TCP.

D. It runs on UDP.

Answer: B, D. RADIUS is an open-standard protocol that runs on UDP.


CCNP / CIT:

You want to prevent a router from informing a host via ICMP messages that there is a better route for some packets it's receiving. What command will do this?

A. no icmp redirect

B. no ip redirect

C. no icmp messaging

D. no ip routing

E. no icmp routing

Answer: B. no ip redirect will handle this.


See you later today with another full set of Cisco CCNA, CCNP, and CompTIA Network+ exam questions!

To your certification exam success,

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

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