Prepare with Cisco 642-742 exam torrent, pass for sure
Last Updated: Sep 10, 2026
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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Multicast over Wireless | 15% | - VideoStream and multicast optimization - Multicast for voice and video - Multicast modes and challenges |
| Topic 2: Implement VoWLAN Features and Security | 25% | - WLAN configuration for voice clients - Power save and U-APSD - Cisco 792x IP phone deployment - Authentication and encryption for voice |
| Topic 3: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - RF and coverage problems - Common voice issues and diagnostics |
| Topic 4: Implement QoS for Voice and Video | 23% | - CAC and admission control - DSCP and CoS marking - TSM and performance monitoring - WMM and 802.11e QoS |
| Topic 5: Describe and Design Voice over Wireless Architecture | 27% | - VoWLAN fundamentals and requirements - Roaming and mobility protocols - RF design considerations for voice - 802.11 standards and voice enhancements |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
When calculating bandwidth usage for an application, what two values represent the minimum and maximum 802.11 overhead per frame? (Choose two.)
- A. 56 bytes
- B. 60 bytes
- C. 28 bytes
- D. 64 bytes
- E. 48 bytes
- F. 24 bytes
- G. 16 bytes
Correct Answer: B,C 🗳️
After implementing mesh with an IP surveillance camera connected to the LAN port on a RAP, the engineer notices that QoS is not being marked. In this setup, what device is responsible for marking upstream traffic from the camera?
- A. Wireless Controller
- B. RAP
- C. First-Hop Router
- D. IP Camera
- E. MAP
Correct Answer: D 🗳️
A corporation has a Cisco Unified Wireless Network that has been deployed for voice coverage. The wireless data rates have been tuned to mandatory rates of 18 Mbps and 36 Mbps. Some wireless clients have been experiencing drops streaming multicast video while moving throughout the building. What is the cause of the drop in video?
- A. Clients are not roaming due to coverage. This is causing the multicast data to drop due to the client re-associating often.
- B. Clients are roaming at lower data rates and are not maintaining 36Mbps connectivity.
- C. Clients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps.
- D. Clients are connected at 18Mbps; however, other clients are connecting at 12Mbps and are causing the multicast video to degrade.
Correct Answer: B 🗳️
Which two statements describe a dual-mode phone, such as the Apple iPhone 4S with iOS 5.0, in relation to Cisco VoWLAN? (Choose two.)
- A. It requires additional software to enable VoWLAN.
- B. It contains dual cellular and 2.4-GHz radio.
- C. It contains dual 2.4-GHz and 5-GHz radio.
- D. The default software enables voice on VoWLAN.
- E. It contains dual cellular and 5-GHz radio.
Correct Answer: A,B 🗳️
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