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Cisco 642-432 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Integrating Voice over IP into Existing PBX Networks | - PBX Integration
|
| Integrating Voice over IP into the PSTN | - PSTN Integration
|
| Voice over IP Technologies | - Voice over IP Technologies
|
| Call Operation and Components in Voice over IP | - Call Operation and Components
|
| Voice over IP Configuration | - Voice over IP Configuration
|
Cisco Voice Over IP Sample Questions:
Which gateway interface connects to the standard station port of a PBX?
- A. POTS
- B. FXO
- C. E&M
- D. FXS
Correct Answer: B 🗳️
Which statement is true about VoIP packet loss?
- A. IP phones can reconstruct up to three consecutive lost packets.
- B. Even minimal packet loss causes echo.
- C. Codec algorithms can overcome minimal packet loss.
- D. Lost packets are simply retransmitted.
Correct Answer: C 🗳️
Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?
- A. 247,200 bps
- B. 51,600 bps
- C. 79,200 bps
- D. 19,200 bps
Correct Answer: C 🗳️
Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?
- A. 247,200 bps
- B. 51,600 bps
- C. 79,200 bps
- D. 19,200 bps
Correct Answer: B 🗳️
Examine the example output.
hostname GW1 ! interface Ethernet 0/0 ip address 172.16.2.1 255.255.255.0 h323-gateway voip interface h323-gateway voip id GK1-zone1.abc.com abc.com ipaddr 172.16.2.2 h323-gateway voip h323-id GW1 h323-gateway voip bind srcaddr 172.16.2.1 ! dial-peer voice 1 voip destination-pattern 1212. session-target ras ! dial-peer voice 2 pots destination-pattern 2125551212 no register e164 !
end
Choose the command that will restore communication with gatekeeper functionality to this device.
- A. h323-gateway voip h323-id GK1
- B. h323-gateway voip bind srcaddr 172.16.2.2
- C. gateway
- D. h323-gateway voip GW1-zone2.abc.com abc.com ipaddr 172.16.2.1
Correct Answer: C 🗳️
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