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 | Objectives |
|---|---|
| Topic 1: Cisco Unified Wireless Architecture | - Controller-based WLAN design - Access point and controller interaction |
| Topic 2: Call Admission Control (CAC) | - CAC mechanisms in WLAN environments - Bandwidth management for voice sessions |
| 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: QoS for Wireless Voice | - WMM (Wi-Fi Multimedia) and prioritization - End-to-end QoS design |
| Topic 6: Wireless Voice Fundamentals | - 802.11 standards and voice considerations - Voice over WLAN concepts |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
A Cisco WLC v7.0 is properly configured for 802.11n and multicasting video without the optional Cisco VideoStream. Which three options best describe the frames that are sent from the AP to the wireless clients? (Choose three.)
- A. unicast to subscribed clients
- B. no retransmission
- C. After startup, throughput is consistent.
- D. After startup, throughput can vary over time.
- E. retransmission upon failure of delivery
- F. multicast to subscribed clients
Correct Answer: B,D,F 🗳️
What is the main difference between the Cisco Unified Wireless IP Phones 7921G and 7925G?
- A. 7925G supports WPA2, whereas the 7921G supports only WPA1.
- B. The 7925G is suited for a more rugged environment.
- C. The 7925G has support for 802.11n, whereas the 7921G does not.
- D. The 7925G supports 802.11a/b/g, whereas the 7921G supports only 802.11b/g.
Correct Answer: B 🗳️
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. The EAP Broadcast Key interval is set to 1 hour however should be 8 hours.
- B. The EAP request-timeout is too short for the wireless phone to process the PAC from the WLAN controller.
- C. EAPOL-Key timeout should be set to at least 20,000 Milliseconds to allow the PAC to be processed.
- D. EAPOL-Key Max Retries should be set to 12 to ensure the wireless phone can authenticate.
Correct Answer: B 🗳️
Which three WLC actions are required to properly enable queuing with TSPEC for voice traffic? (Choose three.)
- A. configure DTIM = 2
- B. configure global 802.11b/g or 802.11a, or both, to voice CAC
- C. configure WLAN platinum QoS
- D. configure WLAN setting to enable WMM
- E. configure WLAN Aironet information elements to enabled
Correct Answer: B,C,D 🗳️
Which three statements are true about load-based Call Admission Control? (Choose three.)
- A. uses ADDTS action frames
- B. requires a WMM-enabled client
- C. grants a VoWLAN client-initiated call based on the number of active clients associated to the AP
- D. uses the 802.11i specifications
- E. grants a VoWLAN client-initiated call based on channel bandwidth capacity
Correct Answer: A,B,E 🗳️
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