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Updated: Jul 30, 2026
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Cisco 642-742 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 |
| Exam Number: | 642-742 |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 55-75 |
| Passing Score: | 750 / 1000 |
| Exam Format: | Multiple-choice single answer, Multiple-choice multiple answer, Drag-and-drop, Simulation |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Japanese |
| Exam Price: | USD 300 |
| Related Certifications: | CCIE Wireless |
| Recommended Training: | Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Cisco 642-742 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | Valid CCNA Wireless certification or any CCIE certification |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/642-742.html |
Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Describe and Design Voice over Wireless Architecture | 27% | - 802.11 standards and voice enhancements - Roaming and mobility protocols - VoWLAN fundamentals and requirements - RF design considerations for voice |
| Topic 2: 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 3: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - RF and coverage problems - Common voice issues and diagnostics - Roaming and QoS troubleshooting |
| Topic 4: Implement QoS for Voice and Video | 23% | - TSM and performance monitoring - CAC and admission control - WMM and 802.11e QoS - DSCP and CoS marking |
| Topic 5: Implement Multicast over Wireless | 15% | - VideoStream and multicast optimization - Multicast for voice and video - Multicast modes and challenges |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
1. Refer to the exhibit.
Which three statements describe the WLC configuration? (Choose three.)
A) It applies to platinum QoS.
B) It enables QBSS, given other appropriate configurations.
C) CAC values are relatively low.
D) CAC values are relatively high.
E) It enables TSPEC, given other appropriate configurations.
F) It applies to platinum and gold QoS.
2. 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) 20
B) 25
C) 14
D) 27
E) 4
F) 7
3. When Vocera badges communicate from badge to badge, which voice codec is used?
A) G.729A
B) G.729B
C) G.711
D) G.723
E) the Vocera proprietary codec
4. A client with the MAC address 00:AB:11:CD:22:EF is experiencing poor voice quality on the VoWLAN. Which three commands would assist in isolating the issue? (Choose three.)
A) debug mobility pmk enable
B) debug cac event enable
C) debug client 00:AB:11:CD:22:EF
D) debug capwap payload enable
E) show client detail 00:AB:11:CD:22:EF
F) debug call-control event enable
5. When designing the coverage area for high call capacity, what two actions should you take with data rates and channels? (Choose two.)
A) Use channels with high AP co-channel interference to avoid channel roaming.
B) Avoid channels with high AP co-channel interference.
C) Set the 2.4-GHz data rate of 5.5 Mb/s to required.
D) Use 2.4-GHz channels when possible.
E) Use 5-GHz channels when possible.
Solutions:
| Question # 1 Answer: A,D,E | Question # 2 Answer: C | Question # 3 Answer: E | Question # 4 Answer: B,C,E | Question # 5 Answer: B,E |
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