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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. Dial peers and gateways are important in the call routing process. The call routing process is done based on the inbound dial-peer and outbound dial-peer matching process. Which two statements are true? (Choose two.)

A) Cisco platforms such as the Cisco AS53xx and AS5800 Series require that a configured inbound dial peer is matched for incoming POTS calls to be accepted as voice calls.
B) Dial peer 0 for inbound POTS peers has a "no ivr application" configuration.
C) When a Cisco router or gateway receives a call setup request, a digit-by-digit match is used to match against configured dial peers.
D) In order to modify the default interdigit timeout set for 10 seconds, issue this command. interdigit timeouts # seconds voice-port.

2. Voice packets are arriving at a destination with a variance of between 20 and 50 milliseconds. If the jitter buffer has a capacity of 30 milliseconds, what is the impact on the audio at the receivers IP phone? Voice packets are arriving at a destination with a variance of between 20 and 50 milliseconds. If the jitter buffer has a capacity of 30 milliseconds, what is the impact on the audio at the receivers IP phone?

A) The IP phone will negotiate in mid-call a lower bandwidth codec to reduce the delay in the arrival of voice packets to avoid voice gaps.
B) There will be no impact the audio stream because the audio packets are arriving in the jitter buffer window.
C) The jitter buffer will replay the previous voice packets to replace those packets that exceed 30 milliseconds to avoid speech gaps.
D) The DSP will automatically increase the jitter buffer size after sampling the range of incoming voice packets to accommodate the wider range in variation of voice packet arrival times to avoid voice gaps.

3. What does policy-based routing use to determine the next hop?

A) destination address
B) MAC address lookup table
C) routing tables
D) packet options that were developed by the network admin

4. You have a Cisco Unified Border Element configured to provide H.323 to SIP interworking. Which command will verify that you have a single H.323 and a single SIP call leg when the call is placed?

A) show dialpeer voice
B) show call active voice
C) debug voip ipipgw
D) debug voice dialpeer

5. Which types of voice ports allow a small office to provide outbound DNIS and inbound DID?

A) FXS-DID and FXO
B) FXS and FXO
C) FXO and E&M
D) FXS and FXS-DID
E) FXS and E&M

Solutions: