Download Cisco : 642-432 Questions & Answers as PDF & Test Software
Updated: Jun 05, 2026
No. of Questions: 72 Questions & Answers with Testing Engine
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Cisco Voice Over IP Sample Questions:
1. To hide its identity when initiating calls, Phone B requests that Server B place its calls for it. What kind of device is Server B?
A) proxy
B) user agent server
C) registrar
D) redirect
E) user agent client
2. Refer to the exhibit. Your customer wants to converge voice and data on the existing T1 Frame Relay WAN link between New York and Atlanta. The customer has allocated 25 percent of the WAN link for routing updates and other overhead. You are using 6 bytes of overhead for Frame Relay, no cRTP, and the G.729 codec.
How many calls could be placed on this link?
A) two
B) four
C) three
D) seven
E) six
F) five
3. Which three are supervisory signals? (Choose three.)
A) ring
B) on hook
C) call waiting
D) off hook
E) busy
4. Refer to the exhibit. Users are not able to complete a call from 678-555-1212 to 770-5551111. What is the correct diagnosis for the problem?
A) incorrect dial-peer statement in Router 1
B) incorrect port statement in Router 1 pots dial peer
C) incorrect destination-pattern in Router 1
D) incorrect session-target statement in Router 2
5. A network has the following characteristics:
?the use of the G.711 codec with a codec speed of 64 kbps ?a 160-byte sample size
?the use of Frame Relay without compressed Real-Time Transport Protocol (CRTP)
?FRF.12 with 6 bytes of overhead
What minimum WAN bandwidth would be required to support three simultaneous VoIP calls?
A) 79200 bps
B) 51600 bps
C) 247200 bps
D) 19200 bps
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: A,B,D | Question # 4 Answer: C | Question # 5 Answer: C |
Real questions!
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