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Last Updated: Sep 08, 2026
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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Multicast over Wireless | - Configure and troubleshoot multicast over wireless - Multicast concepts and implications for wireless |
| VoWLAN Implementation and Troubleshooting | - Configure WLAN for voice - Troubleshoot VoWLAN issues |
| Preparing for High-Bandwidth Wireless Applications | - Bandwidth planning for wireless networks - Support for video and latency-sensitive applications |
| Voice over Wireless LAN (VoWLAN) Fundamentals | - Wireless design considerations for voice - VoWLAN architecture and call flow |
| Quality of Service (QoS) for Wireless Voice | - Implementing QoS on wireless and wired infrastructure - WLC and controller QoS configuration |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
A network engineer is configuring CAC on a WLC. If CAC is configured with 85% of the total radio bandwidth on a 5-GHz radio, how many clients can be accommodated?
- A. 12
- B. 5
- C. 22
- D. 15
Users are experiencing poor audio quality when calling from their 7925 series VoIP Phones. Call quality is exceptional from wired to wired phones, but not from wired to wireless phones. The wired network has QoS deployed properly and the SSID is configured with Platinum QoS. What should be verified to troubleshoot the issue?
- A. The controller is marking the 802.1p tag of 5, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
- B. The controller is marking the 802.1p tag of 4, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.
- C. The controller is marking the 802.1p tag of 6, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.
- D. The controller is marking the 802.1p tag of 3, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
Which two configurations can resolve one-way audio in WLANs? (Choose two.)
- A. maximum transmit power
- B. TPC on AP
- C. DTPC
- D. Platinum QoS in the WLAN
- E. admission control
A client's VoWLAN network requires fast roaming on legacy CCXv3 certified devices, which last received an update in 2007. What two fast roaming standards and authentication methods would be supported? (Choose two.)
- A. 802.11r with PEAP
- B. CCKM with LEAP
- C. CCKM with EAP-FAST
- D. 802.11r with EAP-FAST
- E. CCKM with EAP-TLS
- F. 802.11r with EAP-TLS
- G. CCKM with PEAP
- H. 802.11r with LEAP
What are the results that you can expect when performing a Cisco WLC v7.0 link test on a wireless IP phone?
- A. The device must be running at least Cisco Compatible Extensions v2 or higher, for the test and results to be successful.
- B. A device that is not running a version of Cisco Compatible Extensions will show only packets that are sent and received.
- C. A device that is not running a version of Cisco Compatible Extensions will show packets
that are sent, packets that are received, local signal strength, and SNR. - D. The device must be running at least Cisco Compatible Extensions v4 or higher, for the test and results to be successful.
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