642-453 GWGK Actualtest, ver : 04/21/08

This version of Actualtest contains 114 Q.

CODE

http://rapidshare.com/files/153126347/642-453.zip

QUESTION 32:
Highland Park Property Development is integrating a Cisco Unified CallManager system
with the existing PBX via an E1 QSIG trunk. During testing, the first 15 calls work
normally. After 15 simultaneous calls, new calls have no audio path when they are
established. How can this problem be resolved?
A. Change the channel selection order from descending to ascending.
B. Add the command isdn negotiate-bchan to the serial interface.
C. Add the command isdn contiguous-bchan to the serial interface.
D. Increase the ISDN T302 timer to allow more time for call setup.

QUESTION 33:
Which describes a proper CAC implementation in an H.323 network that uses directory
gatekeepers?
A. The directory gatekeeper controls call bandwidth usage between the zones.
B. The zone gatekeepers maintain the bandwidth commands and the directory gatekeeper
is only responsible for dial plan resolution.
C. The zone gatekeeper negotiates bandwidth requirements with the target zone
gatekeeper by means of an LRQ message forwarded by the directory gatekeeper.
D. The bandwidth commands for each zone that is registered with the directory
gatekeeper are included in the directory gatekeeper configuration.
Questions and Answers : 100 Q&As Updated: October 29th , 2008 Price: $129.99 $89.99
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