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Cisco Voice Over IP Sample Questions:

1. Refer to the exhibit.

Your customer wants to converge the existing PBX network with the IP network.
The three remote offices have various types of PBXs. The customer is using a combination of tie-lines and trunks to connect the PBXs today.
Which kind of connection should be implemented to allow calls to be placed from 201-5551000 to 727-555-1000 so that when the call is completed, network resources are returned for other uses?

A) answer-mode
B) trunk
C) tie-line
D) PLAR

2. Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?

A) 79,200 bps
B) 247,200 bps
C) 19,200 bps
D) 51,600 bps

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?

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

4. Given the SIP network shown in the diagram, identify which two actions are initiated by the UAS (user agent server)? (Choose two.)

A) originates the INVITE method including a description of the session parameters
B) originates the ACK method to indicate that it has received a response to an invitation
C) contacts the user when a SIP invitation is received
D) returns a response on behalf of the user to the invitation originator
E) originates the BYE method to initiate call termination

5. Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?

A) 79,200 bps
B) 247,200 bps
C) 19,200 bps
D) 51,600 bps

Solutions: