Get real 642-432 exam questions for better preparation
Real Cisco 642-432 practice exam questions for easy pass!
Updated: Oct 21, 2026
No. of Questions: 72 Questions & Answers with Testing Engine
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Cisco 642-432 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Cisco IP Telephony Part 2 (CIPT2) / Voice Over IP |
| Exam Number: | 642-432 |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Related Certifications: | CCNP Voice Cisco IP Telephony CCNA Voice (foundational prerequisite in legacy track) CCVP |
| Exam Price: | USD 200 (approx., varies by region; legacy exam pricing) |
| Certificate Validity Period: | Retired (legacy Cisco certification exam; no longer offered in current Cisco certification programs) |
| Exam Format: | Simulation-based questions, Multiple choice |
| Recommended Training: | Cisco Learning Network (Voice / Collaboration resources) |
| Exam Registration: | Cisco Certification Registration Pearson VUE Cisco Exams |
| Sample Questions: | Cisco 642-432 Sample Questions |
| Exam Way: | Proctored exam via Pearson VUE testing centers (legacy delivery model) |
| Pre Condition: | Recommended knowledge of Cisco voice fundamentals and CCNA-level networking concepts (legacy CCNA Voice / CCNA Collaboration track recommended at the time) |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications.html |
Cisco 642-432 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Quality of Service (QoS) for Voice | - Voice traffic prioritization
|
| Topic 2: IP Phone Deployment and Features | - Endpoint registration and configuration
|
| Topic 3: Cisco Unified Communications Architecture | - CUCM (Cisco Unified Communications Manager) fundamentals
|
| Topic 4: Call Control and Survivability | - SRST (Survivable Remote Site Telephony)
|
| Topic 5: Voice Gateway and Protocol Integration | - VoIP signaling protocols
|
Cisco Voice Over IP Sample Questions:
You have set up a complex dial plan using translation rules. The following translation rule has been configured. What output would correspond to the test translation-rule command?
translation-rule 1 rule 0 ^0.. 215550210 rule 1 ^1.. 215550211 rule 2 ^2.. 215550212 rule 3 ^3.. 215550213 rule 4 ^4.. 215550214 rule 5 ^5.. 215550215 rule 6 ^6.. 215550216 rule 7 ^7.. 215550217 rule 8 ^8.. 215550218 rule 9 ^9.. 215550210
- A. test translation-rule 1 617 The replaced number: 61721555021
- B. test translation-rule 1 512 The replaced number: 21555021512
- C. test translation-rule 1 555 The replaced number: 55521555021
- D. test translation-rule 1 910 The replaced number: 21555021910
Correct Answer: B 🗳️
In a VoIP environment when speech samples are framed every 20 ms, a payload of 20 bytes is generated. Assuming a total packet length of 60 bytes, what is the length of the packet header if cRTP is deployed without redundancy checks?
- A. 4 bytes
- B. 40 bytes
- C. 20 bytes
- D. 1 byte
- E. 2 bytes
- F. 3 bytes
Correct Answer: E 🗳️
King's Mountain Cable has a pair of voice enabled routers capable of supporting only high complexity codecs. They need to conserve bandwidth on WAN links without major impact to call quality. Which two codecs satisfy these requirements? (Choose two.)
- A. G.729b
- B. G.729
- C. G.729ab
- D. G.729a
Correct Answer: C,D 🗳️
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. 0 calls
- B. no more than 5 calls
- C. 1 call
- D. 2 calls
- E. no more than 10 calls
- F. no more than 20 calls
Correct Answer: C 🗳️
Refer to the exhibit. Users are not able to complete a call from 678-555-1212 to 770-5551111. What is the correct diagnosis for the problem?
- A. incorrect dial-peer statement in Router 1
- B. incorrect destination-pattern in Router 1
- C. incorrect session-target statement in Router 2
- D. incorrect port statement in Router 1 pots dial peer
Correct Answer: B 🗳️
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