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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
1. Refer to the exhibit.
Cisco 642-437 Exam
An administrator is migrating a PBX telephony system to a VoIP solution using a fixed numbering plan. The extension numbers and PSTN DIDs cannot be changed. Which of the following methods can be used in order to reach the individual extensions at Site B when called via the PSTN?
A) The administrator can replace the last three digits of the DID with xxx to cover the individual extensions.
B) The administrator needs to implement an auto-attendant solution where individual extensions can be dialed.
C) The administrator needs to map the last four digits in the DID to the extension numbers using translation rules.
D) The administrator can replace the last three digits of the DID with xxx and use translation rules to map the individual extensions.
2. Refer to the exhibit.
Cisco 642-437 Exam
When a voice-signaling packet arrives at the router with a DSCP value of AF31, which two options describe how it will be treated? (Choose two.)
A) The packet will be re-marked as DSCP 26 and then to AF31.
B) The packet will not match any class maps.
C) The packet will be marked as DSCP 46 because that is the first set statement in the policy map.
D) The packet will match class map voip-signaling.
E) The packet will be re-marked with a DSCP value of AF31.
3. What is the Cisco recommended best practice for using data VLANs and voice VLANs?
A) Use one VLAN ID for data and use one VLAN ID for voice.
B) Use only voice VLANs.
C) Use the same VLAN ID for both data and voice.
D) Use only data VLANs.
4. What are the PHBs that DiffServ use?
A) default, AF, EF, and CS PHBs
B) AF, EF, and CS PHBs
C) default, AF, and EF PHBs
D) AF and EF PHBs
E) resource reservation and admission control
5. Which QoS technology provides a strict priority queuing scheme that allows delay-sensitive data such as voice to be dequeued and sent before packets in other queues are dequeued, and also works with WFQ and CBWFQ.
A) RSVP
B) IP RTP Priority and Frame Relay IP RTP Priority
C) FRF.12
D) low latency queuing
E) header compression
Solutions:
Question # 1 Answer: C | Question # 2 Answer: D,E | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: B |
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