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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Implement Multicast over Wireless | 15% | - Multicast modes and challenges - Multicast for voice and video - VideoStream and multicast optimization |
| 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 - VoWLAN fundamentals and requirements - 802.11 standards and voice enhancements - Roaming and mobility protocols |
| Implement VoWLAN Features and Security | 25% | - Authentication and encryption for voice - Cisco 792x IP phone deployment - Power save and U-APSD - WLAN configuration for voice clients |
| Implement QoS for Voice and Video | 23% | - DSCP and CoS marking - WMM and 802.11e QoS - CAC and admission control - TSM and performance monitoring |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
What three changes occur when you replace a legacy 802.11a/b/g Cisco AP with an 802.11a/b/g/n Cisco 3500 Series AP? (Choose three.)
- A. increased data rate at increased distance
- B. benefits in both 2.4 and 5 GHz
- C. benefits in 2.4 GHz only
- D. benefits in 5 GHz only
- E. increased data rate at same distance
- F. increased data rate at reduced distance
Dual-mode phone users are requesting the ability to transfer calls from VoIP to cellular and the engineer has decided to implement the Handoff DN method. What information is required by the Call Manager?
- A. H.323 connection to cell provider
- B. SIP connection to cell provider
- C. incoming caller ID
- D. outgoing caller ID
Refer to the exhibit.
A customer is looking to deploy local radius authentication on their WLAN controller. After configuration has been completed, the administrator found that computers could authenticate; however, the VoIP phones could not. What is the problem given the output?
- A. EAPOL-Key Max Retries should be set to 12 to ensure the wireless phone can authenticate.
- B. The EAP Broadcast Key interval is set to 1 hour however should be 8 hours.
- C. The EAP request-timeout is too short for the wireless phone to process the PAC from the WLAN controller.
- D. EAPOL-Key timeout should be set to at least 20,000 Milliseconds to allow the PAC to be processed.
A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and
wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF.
Which statement is true about how the packet is sent from the AP to the final WMM wireless client?
- A. The AP sends the packet with an 802.11 priority tag of 5 (Gold).
- B. The AP sends the packet with an 802.11 priority tag of 3 (Silver).
- C. The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
- D. The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
Which attribute does the VoWLAN Readiness Tool of WCS v7.0 use to predict acceptable conditions?
- A. PER
- B. WMM
- C. QBSS
- D. SNR
- E. RSSI
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