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Cisco 642-432 Exam Syllabus Topics:

Cisco Voice Over IP Sample Questions:

1. Refer to the exhibit. Will these delays meet the G.114 recommendation for one-way delay?

A) No, they will not meet the recommendation for general network purposes.
B) Yes, they will meet the recommendation for most user applications.
C) No, but they will be acceptable for time-sensitive transaction processing.
D) Yes, they will meet the recommendation, provided the administrators understand the implications.

2. A particular set of H.323 endpoints cannot resolve the IP address of destination endpoints. What is the H.323 approved method to fix this problem?

A) Choose another signaling protocol.
B) Build route tables in gateways on the segment.
C) Hard code all IP addresses.
D) Introduce a gatekeeper on the segment.

3. You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs are currently connected to T1 ISDN circuits.
Which signaling type will allow you to support your customer?

A) CAS
B) T-CCS
C) CCS
D) QSIG
E) FXO
F) E&M

4. You have a customer that is interested in determining the number of VoIP calls their Frame Relay WAN links can support. Each of their Frame Relay WAN links has 84 kbps of bandwidth available outside all other applications and overhead. How many G.729 calls using the 8 kbps codec and 20 byte sample size can be supported?

A) 1
B) 3
C) 2
D) 4

5. Which gateway interface connects to the standard station port of a PBX?

A) FXS
B) POTS
C) FXO
D) E&M

Solutions: