Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) : 642-437 Exam

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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 codec is the best option when a voice bandwidth of 8kbps or below is required with the highest voice quality?

A) G.729
B) G.728
C) G.726
D) G.711

2. Which three methodologies are specific types of QoS used on a 512-kb/s point-to-point IP WAN link? (Choose three.)

A) Multilink PPP
B) header compression
C) FRF.12
D) LLQ
E) RSVP

3. Which command should you use to configure a Skinny Call Control Protocol directory number with an extension of 1003 and secondary number 9195551003?

A) number 1003 secondary 9195551003
B) extension 1003 secondary 9195551003
C) number 1003 9195551003
D) extension 1003 9195551003

4. Calls are failing to reach the E1 PRI circuit on the PSTN gateway. Which command would be useful in determining if the dial peers are configured properly?

A) debug voice dial-peer
B) debug voice circuit
C) debug isdn q921
D) show controller e1 0/0/0
E) ccapi inout

5. Which type of delay is caused by the distance that signal must travel in fiber- or copper-based networks?

A) serialization delay
B) propagation delay
C) handling delay
D) processing delay

Solutions: