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

642-437 Exam Questions
  • Exam Code: 642-437
  • Exam Name: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
  • Updated: Jun 20, 2026
  • Q & A: 257 Questions and Answers
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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. DRAG DROP
Drag and drop the appropriate call-signaling term to the correct box in the diagram to establish RSVF-based Call Admission Control between the two Cisco Unified Border Elements (Cisco UBEs). Some options may be used more than once.


2. What is the total number of differentiated services code point bits in the DiffServ field?

A) 8
B) 2
C) 6
D) 4


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

A) Controls opening and closing of logical channels that are used to carry media streams
B) Switches voice channels between connected analog and digital voice circuits
C) Negotiates endpoint capabilities
D) Interconnects two logically separate VoIP networks
E) Provides voice-messaging services to connected analog and digital voice circuits


4. Refer to the exhibit.

Consider an outgoing call that is being placed in all three scenarios that are shown in the exhibit. What is the result of the call, going down the table from top to bottom?

A) success, success, success
B) success, success, fail
C) fail, success, success
D) fail, success, fail
E) success, fail, success
F) success, fail, fail


5. Which of these is assigned to a phone or line to implement calling privileges?

A) partition
B) calling search space
C) route list
D) class of service


Solutions:

Question # 1
Answer: Only visible for members
Question # 2
Answer: C
Question # 3
Answer: A,B
Question # 4
Answer: A
Question # 5
Answer: B

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