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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 - Cisco 792x IP phone deployment - WLAN configuration for voice clients |
| Topic 2: Implement QoS for Voice and Video | 23% | - WMM and 802.11e QoS - DSCP and CoS marking - CAC and admission control - TSM and performance monitoring |
| Topic 3: Implement Multicast over Wireless | 15% | - Multicast modes and challenges - Multicast for voice and video - VideoStream and multicast optimization |
| Topic 4: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - RF and coverage problems - Common voice issues and diagnostics |
| Topic 5: Describe and Design Voice over Wireless Architecture | 27% | - Roaming and mobility protocols - RF design considerations for voice - VoWLAN fundamentals and requirements - 802.11 standards and voice enhancements |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
1. When setting up a VoWLAN deployment with Nokia E-Series dual-mode phones and Cisco 7925G phones, the engineer notices the Nokia phones work over cellular but fail over WiFi, whereas the Cisco phones work fine. What setting would cause this behavior?
A) WPA2 Enterprise used
B) CCKM enabled
C) CCKM disabled
D) SSID set to non-broadcast
E) SSID set to broadcast
F) WPA Enterprise used
2. What is the best practice for configuring data rates for an 802.11a VoWLAN deployment?
A) Configure mandatory data rates of 9 and 54 Mb/s. Disable data rates below 6 Mb/s and all other data rates as supported.
B) Configure a mandatory data rate of 12 Mb/s. Disable data rates below 12 Mb/s and all other data rates as supported.
C) Configure a mandatory data rate of 54 Mb/s. Disable data rates below 36 Mb/s and configure all other data rates as supported.
D) Configure a mandatory data rate of 6 Mb/s. Disable data rates below 6 Mb/s and configure all other data rates as supported.
3. A customer has requested help in configuring priority for emergency calls. What setting needs to be enabled to allow for wireless phones to make emergency calls no matter the load on the access point?
A) static CAC reservation
B) reserved roaming bandwidth reservation
C) SIP CAC
D) expedited bandwidth
4. 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 Gold 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 6. The wired side of the network uses CoS/DSCP values of 5 and EF.
C) 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.
D) 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.
5. Refer to the exhibit.
What two items of multicast information can be interpreted from the WLC display? (Choose two.)
A) WLC-to-AP multicast mode is configured for multicast.
B) WLC-to-AP multicast mode is configured for Unicast.
C) IGMP snooping is disabled.
D) VideoStream is not allowed for the wireless client.
E) IGMP snooping is enabled.
F) VideoStream is allowed for the wireless client.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: E,F |




