Free Cisco 642-437 Practice Test & Real Exam Questions
Which of the Diffserv differentiated services code point per-hop behaviors is used for low-delay services including VoIP and video over IP?
Correct Answer: A
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What are the three acceptable values for one-way delay, jitter, and packet loss in a VoIP network? (Choose three.)
Correct Answer: A,B,E
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You are configuring a network to support voice to the PSTN. One important aspect to the configuration is to be able to determine the individual slot, subunit, and port number from the gateway endpoint identifier. Which signaling protocol is appropriate for this situation?
Correct Answer: B
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Which types of voice ports allow a small office to provide outbound DNIS and inbound DID?
Correct Answer: C
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Which two signaling methods are supported on Cisco FXO and FXS ports? (Choose two.)
Correct Answer: A,B
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Which two methods are used by a Cisco gateway to transmit fax traffic across the IP network? (Choose two.)
Correct Answer: A,C
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Which three factors must be considered when calculating the total bandwidth of a VoIP call, in order to avoid voice quality issues? (Choose three.)
Correct Answer: A,B,D
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A call is received on a voice gateway from a Session Initiation Protocol-based Internet source. The call is destined for a telephone that is connected directly to the gateway. Which type of dial-peer is considered outgoing?
Correct Answer: C
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Which three commands are used to configure a T1 CAS interface? (Choose three.)
Correct Answer: A,E,F
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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?
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?
Correct Answer: A
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