Cisco 642-437

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

1. Which codec supports VAD and CNG?

A) G.726
B) G.711
C) G.729B
D) G.723.1

2. Refer to the exhibit.

An administrator is migrating a PBX telephony system to an IP Phone 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 needs to map the last four digits in the DID to the extension numbers and prefix an intersite code.
B) The administrator needs to map the last four digits in the DID to the extension numbers and prefix a site code.
C) The administrator needs to map the last four digits in the DID to the extension numbers using translation rules.
D) The administrator can add a 1 to the DID for Site B to become 300-555-31xxx.
E) No changes are necessary because PSTN calls are preceded with access code 9.

3. Which three Cisco IOS commands are required to configure a voice gateway as a DHCP server to support a data subnet with the IP address of 10.1.30.0/24 and a default gateway of 10.1.30.1/24? (Choose three.)

A) default-router 10.1.30.1
B) network 10.1.30.0 255.255.255.0
C) ip dhcp pool
D) network 10.1.30.1/24
E) default-gw 10.1.30.1/24
F) ip dhcp pool data
G) subnet 10.1.30.1 255.255.255.0

4. What is the maximum number of digits that can be assigned to a European Subscriber Number using the European Telephony Numbering Space?

A) 15
B) 17
C) 7
D) 10

5. Refer to the exhibit.

How does a switch port that receives marked traffic from a Cisco IP phone use the mls qos trust cos command?

A) The DSCP-to-CoS map is applied.
B) The CoS setting is modified according to the CoS-to-DSCP map.
C) CoS is used to select the ingress and egress queues.
D) For non-IP packets, the CoS is set to 7 and DSCP-to-CoS mapping is not applied.

Solutions: