Monday, September 29, 2008

It's Monday, September 29, and here are the answers to Saturday's Cisco practice exam questions!

CCNA Certification And CCENT Certification:

Host A sends data to Host B. A router separates the two devices. Which of the following will change between the time the Request leaves Host A and arrives as Host B?

A. Source IP address

B. Source MAC address

C. Destination IP address

D. Destination MAC address

Answers: B, D. Both the source and destination MAC addresses will change, but the IP addresses will remain the same.

CCNA Security Certification / CCNP ISCW Exam:

Short answer: What is the numerically highest logging level available on a Cisco router? Give another non-numeric name for the level.

Answer: That's 7, the debugging level. IOS Help shows all our options:

R1(config)#logging trap ?
<0-7> Logging severity level
alerts Immediate action needed (severity=1)
critical Critical conditions (severity=2)
debugging Debugging messages (severity=7)
emergencies System is unusable (severity=0)
errors Error conditions (severity=3)
informational Informational messages (severity=6)
notifications Normal but significant conditions (severity=5)
warnings Warning conditions (severity=4)

CCNP Certification / BSCI Exam:

What is the net effect of the following command?

R1(dhcp-config)#lease 30 23 59

Answer: You're setting the length of the DHCP lease, and IOS Help shows the meaning of each value along with the infinite option.

R1(dhcp-config)#lease ?
<0-365> Days
infinite Infinite lease

R1(dhcp-config)#lease 30 ?
<0-23> Hours

R1(dhcp-config)#lease 30 23 ?
<0-59> Minutes

R1(dhcp-config)#lease 30 23 59

CCNP Certification / BCMSN Exam:

In the wonderful world of wireless, what is CCKM?

Answer: CCKM is Cisco Centralized Key Management, which allows roaming users to roam between APs very quickly - according to their website, in less than 150 milliseconds.

CCNP / ONT Exam:

AutoQoS has trouble running with one of the following - which one?

A. Serial interfaces running HDLC

B. Serial interfaces running PPP

C. Frame Relay DLCIs on PTP interfaces

D. Virtual Templates

Answer: D. AutoQoS does not play well with virtual templates!

More questions and a new CCNA Security video for you later today!

To your success,

Chris Bryant
CCIE #12933

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