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Cisco 642-432 Exam Syllabus Topics:

SectionWeightObjectives
Dial Plan Implementation20%- Digit manipulation and translation rules
- Dial peers and call legs
- Path selection and call routing
Voice Quality and QoS5%- QoS mechanisms for VoIP
- Delay, jitter, packet loss
Gatekeepers and Advanced Features15%- H.323 gatekeeper functions
- Connecting to service providers/ITSP
- Call admission control
Introduction to Voice over IP15%- Voice encoding and compression (G.711, G.729, etc.)
- Characteristics of VoIP networks
- Voice quality and QoS fundamentals
Implementing VoIP Gateways25%- MGCP gateway operation
- Gateway configuration and troubleshooting
- H.323 and SIP gateway concepts
Configuring Voice Ports20%- Voice port configuration and verification
- Signaling types: Loop Start, Ground Start, E&M
- Analog and digital voice ports

Cisco Voice Over IP Sample Questions:

1. Which is the best way to achieve a scalable dial plan?

A) hunt groups
B) variable number of extension digits
C) single number prefixing
D) group numbers for a particular area


2. What is the approximate frequency range of human speech?

A) 40 Hz to 15,000 Hz
B) 20 Hz to 20,000 Hz
C) 600 Hz to 5400 Hz
D) 200 Hz to 9000 Hz


3. 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 555[2-5][56]
C) dial-peer voice 1 pots destination-pattern 5552.[0-5]0
D) dial-peer voice 1 pots destination pattern 5552[5-6].0


4. DRAG DROP
Drop


5. Refer to the exhibit.

Your customer wants to converge the existing PBX network with the IP network.
The three remote offices have various types of PBXs. The customer is using a combination of tie-lines and trunks to connect the PBXs today.
Which kind of connection should be implemented to allow calls to be placed from 201-5551000 to 727-555-1000 so that when the call is completed, network resources are returned for other uses?

A) PLAR
B) trunk
C) answer-mode
D) tie-line


Solutions:

Question # 1
Answer: D
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: Only visible for members
Question # 5
Answer: D

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