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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - Common voice issues and diagnostics - RF and coverage problems |
| Implement VoWLAN Features and Security | 25% | - Cisco 792x IP phone deployment - Power save and U-APSD - WLAN configuration for voice clients - Authentication and encryption for voice |
| Implement Multicast over Wireless | 15% | - Multicast for voice and video - Multicast modes and challenges - VideoStream and multicast optimization |
| Describe and Design Voice over Wireless Architecture | 27% | - RF design considerations for voice - 802.11 standards and voice enhancements - Roaming and mobility protocols - VoWLAN fundamentals and requirements |
| Implement QoS for Voice and Video | 23% | - TSM and performance monitoring - DSCP and CoS marking - WMM and 802.11e QoS - CAC and admission control |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
After implementing 802.11n SGI in a noisy environment increased interference is noted, at what level would the interference be introduced by the change?
- A. headers
- B. symbols
- C. ACKs
- D. packets
Correct Answer: B 🗳️
Which statement best describes the ideal VoWLAN design?
- A. larger cells with higher data rates enabled and WPA2 to secure voice conversations
- B. smaller cells with higher data rates enabled and admission control enabled through WMM
- C. smaller cells with higher data rates enabled and no overlap to prevent co-channel interference
- D. smaller cells with all data rates enabled to ensure that all clients can associate
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 2.4-GHz and 5-GHz radio.
- C. It contains dual cellular and 2.4-GHz radio.
- D. The default software enables voice on VoWLAN.
- E. It contains dual cellular and 5-GHz radio.
Correct Answer: A,C 🗳️
Refer to the exhibit.
A network engineer is troubleshooting wireless voice issues on a network using EAP-FAST with PAC provisioning. Authentication is working properly on laptops but is failing on phones. What configuration change is needed?
- A. Identity Request Timeout to 60
- B. Request Timeout to 30
- C. EAPOL-Key Max Retries to 5
- D. Identity Request Timeout to 10
- E. Request Timeout to 5
- F. EAPOL-Key Max Retries to 1
Correct Answer: B 🗳️
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