Cisco 642-742 Questions & Answers - in .pdf
- Total Q&A: 190
- Update: Aug 14, 2026
- Price: $59.99
- Vendor: Cisco
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
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- Exact Cisco 642-742 Exam Questions with Correct Answers, verified by Experts with years of Experience in IT Field.
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Cisco 642-742 Q&A - Testing Engine
- Total Q&A: 190
- Update: Aug 14, 2026
- Price: $59.99
- Vendor: Cisco
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
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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 |
| Passing Score: | 750 / 1000 |
| Real Exam Qty: | 55-75 |
| Exam Price: | USD 300 |
| Exam Format: | Multiple-choice single answer, Multiple-choice multiple answer, Drag-and-drop, Simulation |
| Available Languages: | English, Japanese |
| Certificate Validity Period: | 3 years |
| 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 |
|---|---|---|
| Describe and Design Voice over Wireless Architecture | 27% | - Roaming and mobility protocols - VoWLAN fundamentals and requirements - RF design considerations for voice - 802.11 standards and voice enhancements |
| Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - RF and coverage problems - Common voice issues and diagnostics |
| Implement VoWLAN Features and Security | 25% | - Authentication and encryption for voice - Power save and U-APSD - WLAN configuration for voice clients - Cisco 792x IP phone deployment |
| Implement QoS for Voice and Video | 23% | - CAC and admission control - TSM and performance monitoring - DSCP and CoS marking - WMM and 802.11e QoS |
| Implement Multicast over Wireless | 15% | - Multicast modes and challenges - Multicast for voice and video - VideoStream and multicast optimization |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
1. A support technician is reviewing wireless configurations for a voice network. They notice the off channel scan defer has been set for 4, 5, and 6. What would occur if the technician was to deselect 5 and 6?
A) The access points would only go off channel to scan if there were devices transmitting with a UP of 4.
B) Wireless clients transmitting at a UP of 5 will cause the access point to cease going off channel to scan.
C) The access points would go off channel to scan whether there were voice devices transmitting or not.
D) Cameras transmitting with a UP of 4 will cause the access point to go off channel to scan.
2. Which two items enable WMM to expedite frames from respective traffic categories? (Choose two.)
Consistent CWmin and CWmax values
Dynamic CWmin and CWmax values
A) PIFS
B) DIFS
C) U-APSD
D) PS-Poll
E) AIFS
F) SIFS
3. You are deploying a combination of Cisco Unified Wireless IP Phones 7921G and 7925G at your branch offices in a centralized call processing environment that requires high availability at branch locations. Which three components need to be verified before the wireless IP phones can be deployed? (Choose three.)
A) Support for local voice mail
B) Sufficient SRST license support at each branch location
C) Support for E.164 dialing
D) Support for single number reach
E) Sufficient IP phone licenses in the Cisco Unified Communications Manager cluster
F) Properly configured QoS over the IP WAN links
G) Branch gateways support MoH
4. Which two VoWLAN configuration parameters are required to implement a Vocera Communications System on a Cisco WLC v7.0? (Choose two.)
A) Enable WLC multicast for WLANs.
B) Adjust the radio EDCA profile.
C) Disable WLAN WMM.
D) Enable WLC broadcast for WLANs.
E) Enable WLAN WMM.
5. A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and
wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF.
Which statement is true about how the packet is sent from the AP to the final WMM wireless client?
A) The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
B) The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
C) The AP sends the packet with an 802.11 priority tag of 3 (Silver).
D) The AP sends the packet with an 802.11 priority tag of 5 (Gold).
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A,F | Question # 3 Answer: B,E,F | Question # 4 Answer: A,C | Question # 5 Answer: A |
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