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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Multicast over Wireless | 15% | - Multicast modes and challenges - Multicast for voice and video - VideoStream and multicast optimization |
| Topic 2: Implement VoWLAN Features and Security | 25% | - Cisco 792x IP phone deployment - Power save and U-APSD - Authentication and encryption for voice - WLAN configuration for voice clients |
| Topic 3: Implement QoS for Voice and Video | 23% | - WMM and 802.11e QoS - CAC and admission control - TSM and performance monitoring - DSCP and CoS marking |
| Topic 4: 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 |
| Topic 5: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - Roaming and QoS troubleshooting - RF and coverage problems - Common voice issues and diagnostics |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
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 statement is correct for the LWAPP/CAPWAP AP upstream encapsulated frame for a WMM-associated client frame that is centrally switched running v5.2?
- A. Wireless client WMM UP classification is translated to a wired DSCP priority.
- B. Wireless client 802.11p classification is translated to a wired DSCP priority.
- C. Wireless client WMM UP classification is translated to a wired 802.1p CoS priority.
- D. Wireless client 802.11p classification is translated to a wired 802.1p CoS priority.
Correct Answer: A 🗳️
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 roaming at lower data rates and are not maintaining 36Mbps connectivity.
- B. Clients are connected at 18Mbps; however, other clients are connecting at 12Mbps and are causing the multicast video to degrade.
- C. Clients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps.
- D. Clients are not roaming due to coverage. This is causing the multicast data to drop due to the client re-associating often.
Correct Answer: A 🗳️
Which two statements are correct if IGMP snooping is enabled on a Cisco WLC v7.0?
(Choose two.)
- A. The IGMP packets from the wireless clients are received at the Cisco WLC, which generates a query for the client.
- B. The IGMP packets from the wireless clients are received at the WLC and are used to update the router via a Cisco Group Management Protocol update from the Cisco WLC.
- C. The router IGMP table is updated with the IP address of the Cisco WLC as the last reporter.
- D. The router IGMP table is updated with the IP address of the wireless clients as the last reporter.
- E. The IGMP packets from the wireless clients are forwarded to the router without modifications.
Correct Answer: A,C 🗳️
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. expedited bandwidth
- B. reserved roaming bandwidth reservation
- C. SIP CAC
- D. static CAC reservation
Correct Answer: A 🗳️
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