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Cisco 642-432 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Cisco Voice Over IP (CVOICE) |
| Exam Number: | 642-432 |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Available Languages: | English |
| Certificate Validity Period: | Historically aligned with Cisco certification validity (approximately 3 years for CCVP); exam retired |
| Related Certifications: | Cisco Certified Voice Professional (CCVP) |
| Passing Score: | Not officially published (historically approximately 734/1000 according to Cisco community discussions) |
| Sample Questions: |  |
| Exam Way: | Pearson VUE/authorized Cisco testing centers (onsite); this legacy exam has been retired and replaced by newer Cisco voice certification exams. |
| Pre Condition: | An active CCNA certification was the prerequisite for earning the CCVP certification track. The 642-432 CVOICE exam itself served as one of the required CCVP exams. |
| Official Syllabus URL: | https://www.cisco.com/go/certifications |
Cisco 642-432 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Call Operation and Components in Voice over IP | - Call Operation and Components
|
| Topic 2: Voice over IP Configuration | - Voice over IP Configuration
|
| Topic 3: Voice over IP Technologies | - Voice over IP Technologies
|
| Topic 4: Integrating Voice over IP into the PSTN | - PSTN Integration
|
| Topic 5: Integrating Voice over IP into Existing PBX Networks | - PBX Integration
|
Common Questions About the Cisco 642-432 Exam
The 642-432 exam, officially known as Cisco Voice Over IP, is the Cisco test that leads to the CCVP certification at the Professional level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as Cisco Certified Voice Professional (CCVP).
An active CCNA certification was the prerequisite for earning the CCVP certification track. The 642-432 CVOICE exam itself served as one of the required CCVP exams.
Entry requirements can change, so confirm the latest conditions on the official exam page: https://www.cisco.com/go/certifications.
Yes. A free PDF demo of the Cisco Voice Over IP questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
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The official Cisco Voice Over IP outline is organized into 5 domains. The first three are:
- Voice over IP Technologies
- Voice over IP Configuration
- Integrating Voice over IP into Existing PBX Networks
See the complete exam topics section above for the full outline and the weighting of every domain.
Cisco Voice Over IP Sample Questions:
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 GW1-zone2.abc.com abc.com ipaddr 172.16.2.1
- C. h323-gateway voip bind srcaddr 172.16.2.2
- D. gateway
Which command parameter specifies that the router should not attempt to initiate a trunk connection but should wait for an incoming call before establishing the trunk?
- A. voice-port 1/0:1
- B. codec clear-channel
- C. connection-trunk 404555 answer-mode
- D. ds0-group timeslots 1-23 type ext-sig
A particular set of H.323 endpoints cannot resolve the IP address of destination endpoints. What is the H.323 approved method to fix this problem?
- A. Choose another signaling protocol.
- B. Introduce a gatekeeper on the segment.
- C. Hard code all IP addresses.
- D. Build route tables in gateways on the segment.
Which device is used to allow an H.323 stream to transit a firewall?
- A. MCU
- B. gatekeeper
- C. gateway
- D. proxy
Refer to the exhibit.
Lighthorse Equine Management would like to investigate converging voice and data on their existing T1 Frame Relay WAN link between New York and Atlanta. Currently the following list of applications are consuming no more bandwidth than what is listed on this segment of the network.
T1 link 1536 kbps
e-mail 75 kbps
internet 200 kbps
Oracle 500 kbps
FTP 250 kbps
Total 1025 kbps
The customer has allocated 25% of the WAN link for routing updates and other overhead. They would like to increase the number of samples encapsulated in each PDU to 40 ms. You have calculated 6 bytes of overhead for Frame Relay, no cRTP, and the use of the
G.711 codec.
How many simultaneous calls could be placed on this link?
- A. no more than 10 calls
- B. no more than 5 calls
- C. 1 call
- D. 0 calls
- E. no more than 20 calls
- F. 2 calls
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