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Cisco 642-437 Exam Syllabus Topics:

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

1. Which two functions are associated with a voice gateway? (Choose two.)

A) provides supplementary services to analog and digital endpoints
B) implements filtering, address hiding, and security related functions to analog devices
C) provides interconnection between multiple traditional telephony circuits
D) acts as a Cisco Unified Border Element
E) provides logical access to analog and digital voice devices

2. What is the decimal equivalent of the DSCP value AF21?

A) 21
B) 16
C) 18
D) 17

3. Which two protocols are peer-to-peer protocols? (Choose two.)

A) H.323
B) MGCP
C) SIP
D) SCCP

4. Refer to the exhibit.

When an inbound PSTN call from 4087071222 arrives at the ISDN port that is shown in the exhibit, which dial peer will be matched for the inbound leg?

A) Although dial-peer 123 takes precedence, there is no direct-inward-dial that is configured, therefore 2123 will be selected.
B) The matching inbound dial peer will be selected at random.
C) Dial-peer 2123, because answer-address takes precedence over incoming called-number.
D) Although dial-peer 123 takes precedence, there is no port that is configured under dial-peer 123, therefore dial-peer 2123 will be selected.
E) Dial-peer 123, because incoming called-number takes precedence over answer-address.

5. Which codec is considered to have high complexity that limits the number of active voice channels on a gateway?

A) G.729AB
B) G.722
C) G.726
D) G.729

Solutions: