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Braindumps of 644-334
SP Video Phase III Cable Access

 

Exam Questions, Answers, Braindumps (644-334)

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QUESTION NO: 1

What is the result effect on signal quality when adding optical amplifiers to a design?

A. theCNR is reduced, but the distortions are relatively unchanged

B. theCNR improves, but the distortions are reduced

C. theCNR is reduced, but distortions are improved

D. theCNR is relatively unchanged, but the distortions are improved

Answer: D

 

QUESTION NO: 2

What is the difference between the levels when combining broadcast traffic and narrow cast traffic at optical receiver?

A. 2 dB

B. 4 dB

C. 8 dB

D. 16 dB

Answer: B

 

QUESTION NO: 3

What is the target optical input level to a Cisco node?

A. -17dBm

B. 0dBm

C. +3dBm

D. +17dBm

Answer: B

 

QUESTION NO: 4

What does the expression Physical nodes size' mean?

A. The number of subscribers served by the HFC network

B. The geographic dimensions of the area served by an OpticalNodes

C. The number of potential subscribers connected bycoaxialcable to a single OpticalNodes

D. The size of the area that can be served by a single optical transmitter

Answer: C

 

QUESTION NO: 5

What does a Node Segmentation' project consists of?

A. Reducing the Physical Node size to effectively increase the bandwidth available to each subscriber

B. Replacing existing amplifiers with wider-bandwidth products

C. Reducing the number of optical receivers and transmitters in an opticalnodeto minimize power consumption

D. Allocatingsmaller segments of the overall bandwidth topocketsof subscribers

Answer: D

 

QUESTION NO: 6

In engineering the upstream signal path, why is it desirable to ensure that all Cable Modems transmit at a high RF signal level?

A. Most CableModemsperform better at higher output levels

B. theCiscoBOR (Baseband Digital Reverse) transmission system cannot operate with low RF input levels

C. A high RF level will ensure that themodemsignals will have a high Carrier-to-Noise Ratio as they leave the potentially noisy environment subscriber's home

D. This will speed up themodeminitializationprocess

Answer: C


 

644-334


 

 

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