Cisco 642-742 Q&A - in .pdf
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Updated: Sep 15, 2026
- Q & A: 190 Questions and Answers
- Convenient, easy to study.
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- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
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- Updated: Sep 15, 2026
- Q & A: 190 Questions and Answers
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Cisco 642-742 Q&A - Testing Engine
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Updated: Sep 15, 2026
- Q & A: 190 Questions and Answers
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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Common voice issues and diagnostics - Roaming and QoS troubleshooting - RF and coverage problems |
| Topic 2: Describe and Design Voice over Wireless Architecture | 27% | - RF design considerations for voice - Roaming and mobility protocols - 802.11 standards and voice enhancements - VoWLAN fundamentals and requirements |
| Topic 3: Implement VoWLAN Features and Security | 25% | - WLAN configuration for voice clients - Authentication and encryption for voice - Cisco 792x IP phone deployment - Power save and U-APSD |
| Topic 4: Implement Multicast over Wireless | 15% | - Multicast modes and challenges - VideoStream and multicast optimization - Multicast for voice and video |
| Topic 5: Implement QoS for Voice and Video | 23% | - WMM and 802.11e QoS - TSM and performance monitoring - DSCP and CoS marking - CAC and admission control |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
What are two benefits that result from Cisco WLC configuration of DCA for 5-GHz VoWLAN deployments? (Choose two.)
- A. Avoid 802.11n 40-MHz channels
- B. Manually remove channels that are not supported by VoWLAN clients
- C. Avoid channels that are affected by a microwave oven
- D. Adjust RRM power thresholds
- E. Avoid nearby radar
Correct Answer: B,E π³οΈ
Which two attributes can be enabled for checking by the Voice Audit Tool in Cisco WCS v7.0? (Choose two.)
- A. 25 dB SNR
- B. MOS
- C. DHCP
- D. -67 dBm cell edge
- E. TSM
Correct Answer: C,E π³οΈ
The AP has been properly configured for a VoWLAN survey. The RF environment contains a noise of -87 to -90 dBm. What would be the target value for the cell edge reading?
- A. -60 dBm
- B. -70 dBm
- C. -73 dBm
- D. -67 dBm
- E. -55 dBm
- F. -62 dBm
Correct Answer: F π³οΈ
A customer using a 7925 phone reports that sometimes the music on hold does not come through or is choppy. The engineer checks the location history and notices it tends to occur toward the edge of the cell. The APs have their data rates set to 12Mbps as mandatory where all rates below are disabled. What is the cause of this issue?
- A. the phone requires the 11Mbps rate
- B. mandatory data rates set too high
- C. unicast is enabled
- D. beacons have been disabled
Correct Answer: B π³οΈ
Refer to the exhibit.
What three items of multicast information can be interpreted from the WLC displays? (Choose three.)
- A. QoS was configured and lowered to best effort.
- B. IGMP snooping is disabled.
- C. VideoStream is not allowed for the wireless client.
- D. VideoStream is allowed for the wireless client.
- E. The ingress WLC multicast stream is IP address 239.1.1.1.
- F. IGMP snooping is enabled.
- G. WLC-to-AP multicast mode is configured for multicast using IP address 239.1.1.1.
- H. WLC-to-AP multicast mode is configured for unicast.
Correct Answer: C,E,F π³οΈ
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