Try and practice the latest Cisco : 642-742 real questions & answers
Updated: Aug 27, 2026
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Cisco 642-742 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 |
| Exam Number: | 642-742 |
| Real Exam Qty: | 188 |
| Exam Format: | Multiple choice |
| Related Certifications: | CCNP Wireless |
| Available Languages: | English |
| Sample Questions: | Cisco 642-742 Sample Questions |
| Exam Way: | Onsite at test center or online proctored |
| Pre Condition: | Recommended: Knowledge of wireless networking (e.g., IUWNE or equivalent) and CCNP Wireless track |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/index.html |
Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Multicast over Wireless | - Multicast concepts and implications for wireless - Configure and troubleshoot multicast over wireless |
| Topic 2: Voice over Wireless LAN (VoWLAN) Fundamentals | - Wireless design considerations for voice - VoWLAN architecture and call flow |
| Topic 3: Preparing for High-Bandwidth Wireless Applications | - Bandwidth planning for wireless networks - Support for video and latency-sensitive applications |
| Topic 4: VoWLAN Implementation and Troubleshooting | - Configure WLAN for voice - Troubleshoot VoWLAN issues |
| Topic 5: Quality of Service (QoS) for Wireless Voice | - WLC and controller QoS configuration - Implementing QoS on wireless and wired infrastructure |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
Question 1
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. 15
B. 12
C. 22
D. 5
Question 2
Which two multicast modes are valid for use with Ethernet bridging on a mesh AP? (Choose two.)
A. out
B. in
C. regular
D. bidirectional bridge
E. mesh bridge in
Question 3
After enabling multicast direct on a WLAN set to Gold QoS, an engineer notices clients are not receiving the video correctly. What setting will correct this issue?
A. disable best effort QoS Admission
B. change WLAN QoS to Silver
C. change WLAN QoS to Platinum
D. increase RRC Priority of Stream
E. decrease RRC Priority of Stream
F. enable best effort QoS Admission
Question 4
An engineer is configuring a new VoWLAN and wants only IEEE 802.11g/n to be supported. Which two data rates should be configured? (Choose two.)
A. Lower than 24 Mbps should be supported.
B. 18 Mbps and higher should be supported.
C. 11 Mbps should be mandatory.
D. 12 Mbps should be mandatory.
E. Lower than 11 Mbps should be disabled.
F. 1, 2, 5.5, and 11 Mbps should be disabled.
G. 6 and 9 Mbps should be supported.
Question 5
A customer has upgraded to 802.11n with ClientLink, set to defaults, to improve video performance on legacy clients. They notice that ClientLink is not kicking in for an 802.11a client with 36 Mb data rate and -55db RSSI. What is the problem?
A. RSSI too high
B. data rate too high
C. RSSI too low
D. data rate too low
Solutions:
| Question 1 Answer: C | Question 2 Answer: B,C | Question 3 Answer: F | Question 4 Answer: B,D | Question 5 Answer: A |
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