Cisco Voice Over IP - 642-432무료 덤프문제 풀어보기
How do a-law and mu-law handle issues with signal-to-noise ratios related to the measure of amplitude?
정답: A
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?
정답: D
Which device is used to allow an H.323 stream to transit a firewall?
정답: D
Which two codecs are required on a Gateway to support CNG and VAD across a WAN link without major impact to call quality and bandwidth consumption? (Choose two.)
정답: B,D
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 use a proprietary signaling type.
Which signaling type will allow you to support your customer?
Which signaling type will allow you to support your customer?
정답: D
Which dial plan characteristic shows the most obvious improvement by dropping a number translation step?
정답: A
Refer to the exhibit. Select the recommended QoS configuration for the LAN segments of the network in the campus and branch office.
정답: D
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?
정답: D