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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Common voice issues and diagnostics - Roaming and QoS troubleshooting - RF and coverage problems |
| Describe and Design Voice over Wireless Architecture | 27% | - RF design considerations for voice - 802.11 standards and voice enhancements - VoWLAN fundamentals and requirements - Roaming and mobility protocols |
| Implement VoWLAN Features and Security | 25% | - Cisco 792x IP phone deployment - Authentication and encryption for voice - WLAN configuration for voice clients - Power save and U-APSD |
| Implement Multicast over Wireless | 15% | - VideoStream and multicast optimization - Multicast for voice and video - Multicast modes and challenges |
| 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:
Which four hardware components are required to make an end-to-end unified wireless VoIP solution? (Choose four.)
- A. CAPWAP access points
- B. Cisco Unified Communications Manager
- C. WLAN controller
- D. autonomous access points
- E. Cisco Wireless Control System
- F. Cisco Mobility Services Engine server
- G. wireless IP phone
- H. firewalls
Correct Answer: A,B,C,G 🗳️
Which of these statements best describes the Cisco Compatible Extensions "AP Specified Max Power" feature?
- A. The AP automatically sets the transmit and receive power of each of its Cisco Compatible Extensions-capable clients.
- B. The Cisco Compatible Extensions-capable client sets its power independently and confirms with the AP if its setting is supported.
- C. The AP automatically sets the transmit power of each of its Cisco Compatible Extensions-capable clients.
- D. After a Cisco Compatible Extensions client associates to an AP, that AP will inform the other surrounding APs what power settings that client supports in case it roams to another AP.
Correct Answer: C 🗳️
Refer to the exhibit.
What two items need to be supported on the VoWLAN phones in order to take full advantage of this WLAN configuration? (Choose two.)
- A. 802.11r
- B. 802.11a
- C. SIFS
- D. 802.11e
- E. WMM
- F. APSD
Correct Answer: D,E 🗳️
The AP has been properly configured for a VoWLAN survey. The RF environment contains a noise of -87 to -90 dBm. What would be the target value for the cell edge reading?
- A. -55 dBm
- B. -62 dBm
- C. -67 dBm
- D. -70 dBm
- E. -60 dBm
- F. -73 dBm
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 contains dual 2.4-GHz and 5-GHz radio.
- B. It requires additional software to enable VoWLAN.
- C. It contains dual cellular and 5-GHz radio.
- D. It contains dual cellular and 2.4-GHz radio.
- E. The default software enables voice on VoWLAN.
Correct Answer: B,D 🗳️
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