Cisco 642-432

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Cisco Voice Over IP Sample Questions:

1. In the connection between a Cisco router and an E&M port on a PBX, which side is generally the Cisco side?

A) switch port
B) signaling unit
C) loop start
D) trunk circuit

2. Which gateway interface connects to the standard station port of a PBX?

A) FXS
B) E&M
C) POTS
D) FXO

3. You are meeting with a customer that has deployed IP telephony at their headquarters
location. They would like to roll out IP telephony to their regional office as well. They are now using the G.711 codec at headquarters. They want to be able to maximize the number of calls carried without impacting voice quality or forcing a WAN upgrade. Which codec would be appropriate for their WAN?

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

4. What are the three components in an MGCP environment? (Choose three.)

A) gatekeeper
B) call agent
C) endpoint
D) proxy server
E) gateway

5. You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs are currently connected to T1 ISDN circuits.
Which signaling type will allow you to support your customer?

A) CCS
B) QSIG
C) E&M
D) T-CCS
E) CAS
F) FXO

Solutions: