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

CCNA:

A frame comes into a switch on port fast0/1. The switch does a lookup on the destination MAC, and sees that the destination is also found off fast 0/1. What action describes how the frame will be handled?

A. forwarded

B. filtered

C. flooded

D. multicast

Answer: B. When the source and destination MAC addresses are found off the same port, the frame will be filtered; that is, the frame will not be forwarded in any fashion by the switch.


Network+ :

Short Answer: Physical addresses are used at what layer of the OSI model? Give both the "official" name and the layer number commonly used to refer to this layer.

Answer: Physical addresses are another name for MAC addresses, referring to the fact that the address is physically present on the NIC. MAC addresses operate at the Data Link layer, or "Layer 2".


Security+ :

What port number does SSL use?

A. 80

B. 8080

C. 443

D. 143

E. 83

Answer: C. SSL, the Secure Sockets Layer, runs at port 443.


CCNP / BCSI:

What protocol multicasts updates to 224.0.0.9?

A. RIPv1

B. RIPv2

C. OSPF

D. EIGRP

E. IGRP

F. BGP

Answer: B. RIPv2 multicasts routing updates to 224.0.0.9.


CCNP / BCMSN:

How can you change the speed and duplex of multiple ports with one command?

A. You can't.

B. With the interface range command.

C. With the global port command.

D. With the interface all command.

Answer: B.


CCNP / BCRAN:

Identify the true statements regarding G.lite.

A. It requires no splitter at the customer site.

B. It's slower than typical ADSL.

C. It's faster than typical dialup connections.

D. It requires a splitter at the customer site.

E. It's faster than typical ADSL.

F. It's slower than typical dialup connections.

Answer: A, B, F. It doesn't require a splitter, it is slower than ADSL, but it's still faster than a dialup connection.


CCNP / CIT:

Short answer: What command resulted in the following output?

*Mar 1 04:40:52.890: Serial0/0(out): StEnq, myseq 17, yourseen 0, DTE down
*Mar 1 04:40:52.890: datagramstart = 0x5D8DAB4, datagramsize = 14

Answer: debug frame lmi.

See you later today with a fresh set of CCNA, CCNP, Network+, and Security+ exam practice questions!

Chris Bryant
CCIE #12933
www.thebryantadvantage.com

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