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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. The administrator has added a new ephone-dn and a new ephone to the Cisco Unified Communications Manager Express system, but the new phone will not register with the system. If other phones are operating properly, which of the following should the administrator do first to try to resolve the issue?

A) Verify that the url services is configured to the correct URL for services.
B) Reboot the router.
C) Enter the command no telephony-service, then enter telephony service in global configuration mode.
D) Verify that the url authentication is configured for the correct authentication URL.
E) Enter the command no create cnf-files, then enter create cnf-files under the telephony-service configuration.
F) Remove the ephone, then re-add the ephone.

2. What is the default encryption algorithm that is used by SRTP?

A) DES
B) AES
C) Blowfish
D) RC4

3. DRAG DROP
Click and drag the type of call on the left to the type of voice port it applies to on the right.

Cisco 642-437 Exam

4. Refer to the exhibit.

Your company's QoS policy states that all traffic that is arriving at access layer switches from IP phones should be marked with a DSCP value of 46 and that all untagged traffic that is arriving from a PC that is attached to an IP phone should be marked with a CoS value of 1. Which two options will satisfy the requirements for the CoS-to-DSCP map and are the correct QoS commands? (Choose two.)

A) mls qos map cos 0 8 18 26 40 48 50 56
B) mls qos map dscp 0 8 16 26 32 40 48 56
C) mls qos cos 1
D) mls qos map cos-dscp 0 10 18 26 34 46 48 56
E) mls qos dscp 1
F) mls qos 1

5. Which codec complexity type allows medium-complexity codecs to be run in high-complexity mode, but with fewer (usually approximately half) of the channels available per DSP?

A) low complexity
B) high complexity
C) flex complexity
D) medium complexity

Solutions: