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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Voice over Wireless LAN (VoWLAN) Fundamentals | - Wireless design considerations for voice - VoWLAN architecture and call flow |
| Topic 2: Multicast over Wireless | - Multicast concepts and implications for wireless - Configure and troubleshoot multicast over wireless |
| Topic 3: Preparing for High-Bandwidth Wireless Applications | - Support for video and latency-sensitive applications - Bandwidth planning for wireless networks |
| Topic 4: Quality of Service (QoS) for Wireless Voice | - Implementing QoS on wireless and wired infrastructure - WLC and controller QoS configuration |
| Topic 5: VoWLAN Implementation and Troubleshooting | - Troubleshoot VoWLAN issues - Configure WLAN for voice |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
Using proper VoWLAN design practice, what would be the Cisco recommended total number of calls for a properly designed 802.11a cell to ensure call quality?
- A. 25
- B. 4
- C. 20
- D. 14
- E. 27
- F. 7
A wireless network needs for QoS to be mapped end-to-end to provide reliability for network applications. What two port configurations and QoS markings should be utilized for the switch to accept the APs tags? (Choose two.)
- A. The switch should have MLS QoS enabled with all uplink and downlink ports configured to trust CoS tags. All uplink switches need to trust the CoS tags.
- B. For a local mode AP, the switchport should be configured as an access port trusting the CoS tag from the AP.
- C. For a local mode AP the switchport should be configured as a trunk port trusting both DSCP or CoS tags from the AP.
- D. For a local mode AP, the switchport should be configured as an access port trusting the DSCP tag from the AP.
- E. The switch should have MLS QoS enabled with all uplink and downlink ports configured to trust DSCP tags. All uplink switches need to trust the DSCP tags as well.
After implementing 802.11n SGI in a noisy environment increased interference is noted, at what level would the interference be introduced by the change?
- A. symbols
- B. headers
- C. ACKs
- D. packets
Which two critical requirements must be addressed in the RF site survey for wireless video
surveillance? (Choose two.)
- A. jitter
- B. WLC configuration
- C. bandwidth
- D. channel selection
- E. packet loss
VoWLAN implementation plans for a current mix of existing Cisco Unified Wireless IP Phones 7920G and 7921G to a final migration of Wireless IP Phones 7925G in a single WLAN. What would be the most appropriate WLC WLAN configuration to end with Wireless IP Phones 7925G?
- A. 7920 Client CAC = enabled only; Radio Policy = 802.11a only; WMM = Disabled
- B. 7920 Client CAC = enabled only; Radio Policy = All; WMM = Disabled
- C. 7920 AP CAC = enabled only; Radio Policy = 802.11b/g only; WMM = Allowed
- D. 7920 Client CAC = enabled only; Radio Policy = 802.11b/g only; WMM = Disabled
- E. 7920 AP CAC = enabled only; Radio Policy = 802.11a only; WMM = Allowed
- F. 7920 AP CAC = enabled only; Radio Policy = All; WMM = Allowed
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