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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement QoS for Voice and Video | 23% | - DSCP and CoS marking - WMM and 802.11e QoS - TSM and performance monitoring - CAC and admission control |
| Topic 2: Implement VoWLAN Features and Security | 25% | - WLAN configuration for voice clients - Authentication and encryption for voice - Power save and U-APSD - Cisco 792x IP phone deployment |
| Topic 3: Implement Multicast over Wireless | 15% | - VideoStream and multicast optimization - Multicast modes and challenges - Multicast for voice and video |
| Topic 4: Describe and Design Voice over Wireless Architecture | 27% | - Roaming and mobility protocols - RF design considerations for voice - 802.11 standards and voice enhancements - VoWLAN fundamentals and requirements |
| Topic 5: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Common voice issues and diagnostics - Roaming and QoS troubleshooting - RF and coverage problems |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
Which two Cisco components are required to extend an existing VoWLAN to dual-mode wireless phones? (Choose two.)
- A. Cisco Unified Mobility Advantage client
- B. Cisco Unified Mobility Advantage
- C. A RADIUS server for the WLAN
- D. An LDAP server for the WLAN
- E. Cisco Unified Mobile Communicator
- F. Cisco Unified Communications Manager
Correct Answer: B,E 🗳️
Which three statements are true about load-based Call Admission Control? (Choose three.)
- A. grants a VoWLAN client-initiated call based on channel bandwidth capacity
- B. requires a WMM-enabled client
- C. uses ADDTS action frames
- D. grants a VoWLAN client-initiated call based on the number of active clients associated to the AP
- E. uses the 802.11i specifications
Correct Answer: A,B,C 🗳️
When inspecting the WCS voice readiness tool, an engineer notices yellow areas. What step should you take to fix this?
- A. remove some APs in the area to reduce co-channel interference
- B. change the channel on some APs in the area to reduce co-channel interference
- C. add additional APs to the coverage area to increase RSSI
- D. increase the power of APs in the yellow area to increase RSSI
Correct Answer: C 🗳️
Refer to the exhibit.
Which two statements describe information that you can derive from the WCS v7.0 output from the Monitor Client Detail? (Choose two.)
- A. Comparing the RSSI and SNR can provide specific information on QoS performance in the VoWLAN.
- B. If the parameters are consistently good, then voice-related issues being reported by users are probably not related to RF parameters.
- C. Comparing the information to the location of the client can provide the first hint of voice-related issues.
- D. Comparing the RSSI and SNR can provide specific information on where the client has roamed and if there is a problem with one or more AP configurations.
- E. Comparing the RSSI and SNR can provide specific information on the relative distance of the client from the AP during a call.
Correct Answer: B,C 🗳️
Which two security technologies should be used when deploying a 100 Wi-Fi phone installation? (Choose two.)
- A. Use IEEE 802.1X and WPA2 and Cisco Centralized Key Management.
- B. Use the same IEEE 802.1X username on all phones.
- C. Use WPA-PSK.
- D. Use IEEE 802.1X and WEP 256.
- E. Use IEEE 802.1X with unique users on each phone.
- F. Use IEEE 802.1X and WEP 128.
Correct Answer: A,E 🗳️
