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Cisco 642-742 exam dumps : Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Updated: Sep 19, 2026 Q & A: 190 Questions and Answers
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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Voice over Wireless LAN (VoWLAN) Fundamentals | - VoWLAN architecture and call flow - Wireless design considerations for voice |
| Preparing for High-Bandwidth Wireless Applications | - Support for video and latency-sensitive applications - Bandwidth planning for wireless networks |
| VoWLAN Implementation and Troubleshooting | - Configure WLAN for voice - Troubleshoot VoWLAN issues |
| Quality of Service (QoS) for Wireless Voice | - Implementing QoS on wireless and wired infrastructure - WLC and controller QoS configuration |
| Multicast over Wireless | - Configure and troubleshoot multicast over wireless - Multicast concepts and implications for wireless |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
Question #1
Which two critical requirements must be addressed in the RF site survey for wireless video
surveillance? (Choose two.)
- A. bandwidth
- B. channel selection
- C. jitter
- D. WLC configuration
- E. packet loss
Correct Answer: C,E 🗳️
Question #2
A VoWLAN site survey was performed and equipment installed based on recommended design guidelines. Which two statements describe reasons to perform a post-deployment survey? (Choose two.)
- A. There is insufficient information about the number of people in the area when the survey is performed.
- B. There are elevator shafts.
- C. There are changes in temperature in the indoor environment.
- D. There are roaming pathways.
- E. There is insufficient information by AirMagnet VoFi Analyzer.
Correct Answer: A,D 🗳️
Question #3
What happens to a wireless client when it moves from one controller to another in a different mobility domain?
- A. It is not possible to roam to a different mobility domain.
- B. The client will have to reauthenticate, reassociate, and get new IP address information.
- C. Nothing happens as long as the client roams within the same mobility group.
- D. The client will have to reauthenticate and reassociate, but will be able to keep its IP address information.
Correct Answer: B 🗳️
Question #4
Using proper VoWLAN design practice, what would be a reasonable total number of calls for a properly designed 802.11g cell to ensure call quality?
- A. 14
- B. 20
- C. 25
- D. 4
- E. 7
- F. 27
Correct Answer: A 🗳️
Question #5
Refer to the exhibit.
Voice-bearer traffic is being sent downstream using a WLAN configured for gold QoS. Which two of these options indicate the inner 802.11e QoS markings and QoS CAPWAP
markings that are used at location 1? (Choose two.)
- A. Outer CAPWAP: CoS 4
- B. Inner 802.11e: UP 3
- C. Inner 802.11e: UP 5
- D. Inner 802.11e: UP 4
- E. Outer CAPWAP: DSCP AF41
- F. Outer CAPWAP: DSCP AF31
Correct Answer: C,E 🗳️
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