Tuesday, May 29, 2007

Welcome back ! And for those of you here in the States that are getting back from a long holiday weekend - hang in there! :)

Here are the answers to Monday's Cisco certification practice questions. All of Monday's questions were short answer.


CCNA Certification:

What are the frame relay LMI types?

Answer: Cisco, ansi, and q933a. Cisco is the default.



CCNP Certification / BSCI Exam:

What port number does BGP use to create neighbor adjacencies?

Answer: That's TCP port 179. Make sure to leave that one unblocked by ACLs!


CCNP Certification / BCMSN Exam:

Classification and marking of data should be done at what layer of the Cisco switching model?

Answer: That should take place as close to the origination point of the data as possible, which means the Access layer.


CCNP Certification / ISCW Exam:

You notice that TCP keepalives are enabled on a router, and you want to disable this feature. What global configuration command will you need to use?

Answer: This is a router service, so we'll use the no service tcp-keepalives command.


CCNP Certification / ONT Exam:

RED has three different modes of packet dropping. Name them.

Answers: "no drop", used when the number of packets in the queue is less than the minimum threshold; "random drop", used when the number of packets in the queue is between the minimum and maximum threshold values; "tail drop", used only when the number of packets exceeds the max threshold. Tail drop can lead to TCP Global Synchronization issues.


See you later today with a new batch of questions and some other surprises! :)

To your success,

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

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