Friday, August 31, 2007

Here are the answers to Wednesday's Cisco certification exam practice questions!

CCNA Exam:

What summary route can be used to advertise the following four routes? /16 /16 /16 /16

Answer:, or /14 in prefix notation.

CCNP Certification / BSCI Exam:

You are examining an IPv6 address and notice two consecutive colons. What does this represent, if anything?

Answer: Those two colons represent a string of zeros. This is referred to as zero compression, but can only be done once in a single IPv6 address. Leading zero compression, though, can be done as many times as is appropriate in an IPv6 address.

Original format: 1234:1234:0000:0000:0000:0000:3456:3434

Using zero compression: 1234:1234::3456:3434

CCNP Certification / BCMSN Exam:

How many bytes are added to a frame as a result of ISL encapsulation?

Answer: The header is 26 bytes, the trailer containing the CRC value is 4 bytes, for a total of 30 bytes.

CCNP Certification / ISCW Exam:

What command disables ICMP redirects?

Answer: no ip redirects.

CCNP Certification / ONT Exam:

What number and name are given to the highest possible CoS value?

Answer: The highest possible CoS value is 7 (111 in binary), known commonly as Network.

New questions posted later today!

To your success,

Chris Bryant
CCIE #12933

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