Wednesday, January 23, 2008

Here are the answers to your free Cisco and CompTIA certification exam practice questions for Tuesday, January 21!

CCNA / CCENT / Network+ Certification:

Convert the binary string 10101010 into a hex value.

Answer: In decimal, that string equals 170; that's AA (or aa, case does not matter).

Security+ Certification:

What kind of traffic is generally used in a Smurf Attack?

Answer: ICMP Echo packets - the ones sent by pings.

CCNP Certification / BSCI Exam:

In the BGP best-path selection process, what is the first attribute a Cisco router examines?

Answer: The Cisco-proprietary attribute weight is the first attribute considered.

CCNP Certification / BCMSN Exam:

On a Cisco L3 switch, what command converts a routing port to a switching port?

Answer: The command is switchport. To change a port from switching to routing, run no switchport.

CCNP Certification / ISCW Exam:

Basically, what is a "demilitarized zone"?

Answer: A DMZ is the area between a company's private network ("inside network") and the outside world. Packets going from the inside network to the DMZ and from the DMZ to external networks are generally examined by security devices.

I wanted to call it the Twilight Zone, but Cisco's not returning my calls on that one. :)

CCNP Certification / ONT Exam:

Name three major differences between WEP and WPA.

Answer: Wired Equivalent Privacy (WEP) offers static keys, an easily hacked authentication setup, and is not considered a scalable solution.

Sounds promising, right? That's why WPA is a much more attractive solution. WPA uses dynamic keys, isn't easily hacked, and is highly scalable.

New questions posted later today - Wednesday, January 22!

To your success,

Chris Bryant
CCIE #12933

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