Cisco Voice Over IP (642-432) Free Practice Test
Question 1
Which device is used to allow an H.323 stream to transit a firewall?
Correct Answer: B
Question 2
Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?
Correct Answer: D
Question 3
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?
Correct Answer: C
Question 4
Your customer has forwarded this diagram and configuration. The customer wishes to have a connection between its PBXs, a connection that is created and dropped as required. There is one configuration statement missing from each router. What are the two missing statements? (Choose two.)
Correct Answer: B,C
Question 5
DRAG DROP
Drop
Drop
Correct Answer:
Question 6
How is CAS different on E1 and T1?
Correct Answer: D
Question 7
Which preference key word assigns top precedence to a dial peer in a hunt-group?
Correct Answer: A
Question 8
In a VoIP environment when speech samples are framed every 20 ms, a payload of 20 bytes is generated. Assuming a total packet length of 60 bytes, what is the length of the packet header if cRTP is deployed without redundancy checks?
Correct Answer: A