Cisco 642-432 : Cisco Voice Over IP

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Cisco Voice Over IP Sample Questions:

1. A 9 digit number must be dialed to reach numbers on the PSTN. What process makes sure that the first digit 9 is not transmitted as part of the called number?

A) digit masking
B) digit manipulation
C) digit seizing
D) digit alternating

2. To hide its identity when initiating calls, Phone B requests that Server B place its calls for it. What kind of device is Server B?

A) registrar
B) user agent client
C) redirect
D) proxy
E) user agent server

3. What is the E.164 numbering plan?

A) the IETF North American number plan
B) the ITU worldwide number plan
C) the European PBX standard telephony number plan
D) a proprietary PBX number plan

4. LAB

Examine the following PBX system parameters:
The calling side seizes the line by going off-hook on its E-lead and sends information as DTMF digits.
The voice path is 4-wires, and the voice enabled router is in another building from the PBX.
Select the correct set of commands to allow communication between a voice enabled router and a PBX.

A) voice port 1/0/0 signal immediate-start operation 4-wire type 4
B) voice port 1/0/0 signal immediate-start operation 4-wire type 2
C) voice-port 1/0/0 signal delay-dial operation 4-wire type 1
D) voice port 1/0/0 signal wink-start operation 4-wire type 3

5. Refer to the exhibit. You have been asked to configure a dial peer on R2 that will match only the extensions of the four telephones attached. Which dial-peer statement will you use?

A) dial-peer voice 1 pots destination-pattern 5552[5-6][05]0
B) dial-peer voice 1 pots destination-pattern 5552.[0-5]0
C) dial-peer voice 1 pots destination-pattern 555[2-5][56]
D) dial-peer voice 1 pots destination pattern 5552[5-6].0

Solutions: