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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement VoWLAN Features and Security | 25% | - Power save and U-APSD - Authentication and encryption for voice - WLAN configuration for voice clients - Cisco 792x IP phone deployment |
| Topic 2: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - RF and coverage problems - Common voice issues and diagnostics |
| Topic 3: Implement Multicast over Wireless | 15% | - Multicast modes and challenges - VideoStream and multicast optimization - Multicast for voice and video |
| Topic 4: Implement QoS for Voice and Video | 23% | - TSM and performance monitoring - CAC and admission control - DSCP and CoS marking - WMM and 802.11e QoS |
| Topic 5: Describe and Design Voice over Wireless Architecture | 27% | - RF design considerations for voice - VoWLAN fundamentals and requirements - 802.11 standards and voice enhancements - Roaming and mobility protocols |
642-742 Exam FAQ: Crafted Carefully, Delivered Fast
The 642-742 exam is a Cisco certification exam validating the Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 syllabus shown above. It belongs to these credential paths: CCIE Wireless. Candidates in 2026 start with PracticeVCE's 190 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
The official Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 outline defines 5 domains. The leading three are Implement VoWLAN Features and Security (25%), Describe and Design Voice over Wireless Architecture (27%), and Implement QoS for Voice and Video (23%). The full list is in the topics section above, and PracticeVCE's 190 practice questions cover each one.
Valid CCNA Wireless certification or any CCIE certification Since requirements change over time, confirm the latest on the official Cisco exam page before scheduling.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 190 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 exam requires 750 / 1000 to pass, and registration costs USD 300. A failed attempt means paying the same fee again — a readiness check with the PracticeVCE engines before booking is the cheaper option.
Cisco recommends these training resources for the Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 exam:
Follow the training with steady self-testing — the 190 practice questions from PracticeVCE help you apply theory and fill any gaps the training leaves.
The Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 exam contains 55-75 to complete within 90 minutes. Timed simulation in the PracticeVCE Desktop Test Engine teaches that rhythm before exam day does.
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Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
What is the difference between the QoS values on the wired and wireless sides of a WLAN?
- A. The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.
- B. The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and 40.
- C. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and EF.
- D. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.
Correct Answer: A 🗳️
A single Layer 2 multicast address can map to how many IPv4 multicast addresses?
- A. 28
- B. 1
- C. 64
- D. 32
- E. 8
- F. 16
Correct Answer: D 🗳️
Which two statements correctly describe WLAN QoS configuration related to WMM? (Choose two.)
- A. 7920 AP CAC and 7920 client CAC modes are for 802.11a/b/g/n.
- B. 7920 Client CAC mode is not compatible with WMM policy and cannot be used at the same time.
- C. 7920 AP CAC and 7920 client CAC modes are for 802.11a/n only.
- D. 7920 AP CAC and 7920 client CAC modes are for 802.11b/g/n only.
- E. 7920 AP CAC mode is not compatible with WMM policy and cannot be used at the same time.
Correct Answer: B,D 🗳️
A downstream packet containing a DSCP value arrives at the WLC Ethernet interface from the wired source network. The WLC is configured for QoS WLAN 802.1p mapping. How does the WLC treat the CAPWAP QoS marking when leaving the controller interface for the respective AP and final wireless client destination?
- A. The outer CAPWAP DHCP is marked and capped without any inner DSCP value.
- B. The outer CAPWAP CoS is marked and capped while the inner DSCP maintains the original marking.
- C. No outer CAPWAP or inner QoS tagging is applied.
- D. No outer CAPWAP QoS tag is applied, but the original DSCP is maintained inside CAPWAP.
Correct Answer: B 🗳️
Which three WLC actions are required to properly enable queuing with TSPEC for voice traffic? (Choose three.)
- A. configure WLAN platinum QoS
- B. configure WLAN Aironet information elements to enabled
- C. configure WLAN setting to enable WMM
- D. configure global 802.11b/g or 802.11a, or both, to voice CAC
- E. configure DTIM = 2
Correct Answer: A,C,D 🗳️
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