Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
Certification Provider: Cisco
Corresponding Certification: CCNP Wireless
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Cisco 642-742 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Multicast over Wireless | 15% | - Multicast for voice and video - VideoStream and multicast optimization - Multicast modes and challenges |
| Topic 2: Describe and Design Voice over Wireless Architecture | 27% | - 802.11 standards and voice enhancements - RF design considerations for voice - Roaming and mobility protocols - VoWLAN fundamentals and requirements |
| Topic 3: Implement QoS for Voice and Video | 23% | - TSM and performance monitoring - CAC and admission control - DSCP and CoS marking - WMM and 802.11e QoS |
| Topic 4: Troubleshoot VoWLAN and High-Bandwidth Applications | 10% | - RF and coverage problems - Roaming and QoS troubleshooting - Common voice issues and diagnostics |
| Topic 5: Implement VoWLAN Features and Security | 25% | - Authentication and encryption for voice - WLAN configuration for voice clients - Cisco 792x IP phone deployment - Power save and U-APSD |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
What is the recommended minimum speed at the edge of the cells in an 802.11g network for a good Cisco VoWLAN deployment?
- A. 12 Mb/s
- B. 18 Mb/s
- C. 11 Mb/s
- D. 36 Mb/s
- E. 54 Mb/s
Correct Answer: A 🗳️
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 0 (Best Effort).
- B. The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
- C. The AP sends the packet with an 802.11 priority tag of 3 (Silver).
- D. The AP sends the packet with an 802.11 priority tag of 5 (Gold).
Correct Answer: C 🗳️
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. grants a VoWLAN client-initiated call based on the number of active clients associated to the AP
- C. uses the 802.11i specifications
- D. requires a WMM-enabled client
- E. uses ADDTS action frames
Correct Answer: A,D,E 🗳️
When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.)
- A. jitter
- B. latency
- C. packet loss
- D. throughput
- E. number of users on the network
- F. client association
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. add additional APs to the coverage area to increase RSSI
- C. increase the power of APs in the yellow area to increase RSSI
- D. change the channel on some APs in the area to reduce co-channel interference
Correct Answer: B 🗳️
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