Thursday, September 13, 2012

642-311 Study Guide / 642-311 Testing Engine / 642-311 Videos

Cisco CCNA Training, Cisco CCNA Certification
Best CCNA Training and CCNA Certification and more Cisco exams log in to Certkingdom.com


QUESTION 1
What is the phenomenon called where different wavelengths of light travel at different speeds?

A. OSNR
B. light skew
C. dispersion
D. attenuation

Answer: C


QUESTION 2
A customer has 2 DS1s to add between adjacent nodes in a UPSR ring. What type of circuit
should you recommend?

A. VT circuits
B. VT tunnel circuits
C. 1:1 protection circuits
D. 1:N protection circuits
E. STS circuits

Answer: A


QUESTION 3
DRAG DROP
Drag Drop question



Answer:



QUESTION 4
What are three factors that limit the maximum distance of an amplified optical signal without
regeneration? (Choose three.)

A. receiver dispersion tolerance
B. transmitter power
C. signal attenuation
D. amplifier bandwidth
E. fiber dispersion

Answer: A,C,E


QUESTION 5
You are provisioning a DS-1 circuit on an ONS 15454 UPSR configuration and XC-10G card. How
many total VT ports are used within the VT matrix at the source node?

A. 2
B. 4
C. 1
D. 0
E. 3

Answer: E


Cisco CCNA Training, Cisco CCNA Certification
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