最新的Cisco Voice Over IP - 642-432免費考試真題
問題1
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.)
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.)
正確答案: B,F
問題2
In the VoIP network above, which protocol provides the necessary sequence numbers so voice packets originating at R1 are played in the correct order at R5?
In the VoIP network above, which protocol provides the necessary sequence numbers so voice packets originating at R1 are played in the correct order at R5?
正確答案: C
問題3
You have been forwarded some questions by a prospective VoIP customer who would like to know the Cisco default sample size for the G.729 codec. What is it?
You have been forwarded some questions by a prospective VoIP customer who would like to know the Cisco default sample size for the G.729 codec. What is it?
正確答案: C
問題4
Which problem does a-law and mu-law address?
Which problem does a-law and mu-law address?
正確答案: B
問題5
Which option is true concerning the MGCP call agent?
Which option is true concerning the MGCP call agent?
正確答案: D
問題6
You are working with your customer in their lab to test the effect of jitter on voice quality. You have set the maximum playout delay to 40 ms on the voice enabled routers. What will be the impact on voice quality if after severe congestion the playout buffer empties and the source sends packets to the buffer faster than they are leaving?
You are working with your customer in their lab to test the effect of jitter on voice quality. You have set the maximum playout delay to 40 ms on the voice enabled routers. What will be the impact on voice quality if after severe congestion the playout buffer empties and the source sends packets to the buffer faster than they are leaving?
正確答案: C
問題7
What is the best description of an MGCP endpoint?
What is the best description of an MGCP endpoint?
正確答案: D
問題8
Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?
Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?
正確答案: B