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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Call Admission Control (CAC) | - CAC mechanisms in WLAN environments - Bandwidth management for voice sessions |
| Voice Deployment and Troubleshooting | - VoWLAN deployment best practices - Common voice quality issues and diagnostics |
| Wireless Voice Fundamentals | - Voice over WLAN concepts - 802.11 standards and voice considerations |
| Cisco Unified Wireless Architecture | - Access point and controller interaction - Controller-based WLAN design |
| Roaming and Mobility | - Fast secure roaming (CCKM, 802.11r concepts) - Layer 2 and Layer 3 roaming behavior |
| QoS for Wireless Voice | - WMM (Wi-Fi Multimedia) and prioritization - End-to-end QoS design |
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. -73 dBm
- C. -67 dBm
- D. -70 dBm
- E. -62 dBm
- F. -60 dBm
Correct Answer: E π³οΈ
Which four statements describe the attributes of streaming video? (Choose four.)
- A. QoS marking is at AF41.
- B. One-way latency is limited to a few seconds.
- C. QoS marking is at CS4.
- D. One-way latency is limited to 150 ms.
- E. Packet loss is limited to 1 percent.
- F. Jitter is limited to 30 ms.
- G. Jitter has no significant requirements.
- H. Packet loss is limited to 5 percent.
Correct Answer: B,C,G,H π³οΈ
A packet arrives with a decimal value of 12. Which AF class does the packet belong to, and what is the drop probability of the packet? (Choose two.)
- A. AF1
- B. AF2
- C. AF3
- D. medium drop probability
- E. high drop probability
- F. low drop probability
- G. AF4
Correct Answer: A,D π³οΈ
What is the minimum overhead (header plus FCS) added by 802.11 (no encryption, no WMM) between a wireless client and an AP?
- A. 18 B
- B. 35 B
- C. 24 B
- D. 48 B
- E. 36 B
- F. 28 B
Correct Answer: F π³οΈ
WLC v7.0 is configured for multicast with WLC-to-AP multicast mode, using IP address
239.10.10.10 and IGMP snooping enabled, with all other parameters set to default. What QoS value is given to multicast traffic between a WLC and APs?
- A. CS4
- B. CS2
- C. BE
- D. EF
- E. CS1
- F. CS6
- G. CS3
- H. CS5
Correct Answer: C π³οΈ
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