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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: QoS for Wireless Voice | - WMM (Wi-Fi Multimedia) and prioritization - End-to-end QoS design |
| Topic 2: Cisco Unified Wireless Architecture | - Controller-based WLAN design - Access point and controller interaction |
| Topic 3: Roaming and Mobility | - Fast secure roaming (CCKM, 802.11r concepts) - Layer 2 and Layer 3 roaming behavior |
| Topic 4: Voice Deployment and Troubleshooting | - VoWLAN deployment best practices - Common voice quality issues and diagnostics |
| Topic 5: Wireless Voice Fundamentals | - 802.11 standards and voice considerations - Voice over WLAN concepts |
| Topic 6: Call Admission Control (CAC) | - Bandwidth management for voice sessions - CAC mechanisms in WLAN environments |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
1. Which two statements describe the capability of TSM to collect statistics that are related to VoWLAN on Cisco WLC v7.0? (Choose two.)
A) It is operational only on 802.11a/n radio.
B) The feature is enabled by default.
C) It requires Cisco Compatible Extensions clients for uplink and downlink statistics.
D) It is operational on both 802.11g/b/n and 802.11a/g radio.
E) It requires Cisco Compatible Extensions clients for uplink statistics only.
2. A network engineer is deploying wireless voice with a 20% overlap at -67dBm. After testing, the cell edge is determined to be 50 feet from the AP. How far away should the next AP be placed?
A) 90 feet
B) 70 feet
C) 80 feet
D) 100 feet
E) 60 feet
3. What are two benefits that result from Cisco WLC configuration of DCA for 5-GHz VoWLAN deployments? (Choose two.)
A) Avoid channels that are affected by a microwave oven
B) Manually remove channels that are not supported by VoWLAN clients
C) Adjust RRM power thresholds
D) Avoid nearby radar
E) Avoid 802.11n 40-MHz channels
4. Refer to the exhibit.
What CoS marking is DSCP EF translated too?
A) 4
B) 3
C) 5
D) 2
E) 6
F) 7
5. Using proper VoWLAN design practice, what would be the Cisco recommended total number of calls for a properly designed 802.11g cell to ensure call quality?
A) 25
B) 27
C) 4
D) 20
E) 14
F) 7
Solutions:
| Question # 1 Answer: D,E | Question # 2 Answer: A | Question # 3 Answer: B,D | Question # 4 Answer: B | Question # 5 Answer: E |
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