Wednesday, October 08, 2008

Welcome back! Here are the answers to Tuesday's Cisco certification exam training questions! All of yesterday's questions were short answer.

CCNA Certification And CCENT Certification:

What is the decimal equivalent of the binary string 11110101?

Answer: 245.

CCNA Security Certification / CCNP ISCW Exam:

You want to enable AAA on a Cisco router. How would you do so at the CLI?

Extra Credit: How would you do it in SDM?

Answers: At the command line, use the aaa new-model command. In SDM, click the Additional Tasks button and navigate to the AAA section.

Look for a new CCNA Security exam tutorial on that subject later today!

CCNP Certification / BSCI Exam:

Give three reasons an EIGRP route may go into SIA.

Reasons that EIGRP routes go stuck-in-active are many, but here are the main ones:

-- Unidirectional link is preventing query from being answered.

-- Queried router’s CPU is overloaded, preventing a reply.

-- Queried router’s memory is corrupt.

-- Low-quality link between the two neighbors is allowing Hellos to go through, but replies aren’t getting through.

CCNP Certification / BCMSN Exam:

Describe STP's reaction to a physical channel in an Etherchannel going down. What recalculation takes place?

Answer: The cost of the Etherchannel will change, but the EC itself does not go down.

CCNP / ONT Exam:

You're configuring a backup GRE tunnel in SDM. What authentication options will you have, if any?

Answer: Pre-shared keys and digital certificates

Look for new questions later today!

To your success,

Chris Bryant
CCIE #12933

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