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- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Certification Provider: Cisco
- Corresponding Certification:CCNP Wireless
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Instant Download Cisco : 642-742 Questions & Answers as PDF & Test Engine
- Exam Code: 642-742
- Exam Name: Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
- Updated: Sep 09, 2026
- No. of Questions: 190 Questions and Answers
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Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Voice Deployment and Troubleshooting | - VoWLAN deployment best practices - Common voice quality issues and diagnostics |
| Topic 2: Wireless Voice Fundamentals | - Voice over WLAN concepts - 802.11 standards and voice considerations |
| Topic 3: Cisco Unified Wireless Architecture | - Access point and controller interaction - Controller-based WLAN design |
| Topic 4: Roaming and Mobility | - Fast secure roaming (CCKM, 802.11r concepts) - Layer 2 and Layer 3 roaming behavior |
| Topic 5: QoS for Wireless Voice | - End-to-end QoS design - WMM (Wi-Fi Multimedia) and prioritization |
| Topic 6: Call Admission Control (CAC) | - CAC mechanisms in WLAN environments - Bandwidth management for voice sessions |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
Which two statements describe the capability of TSM to collect statistics that are related to VoWLAN on Cisco WLC v7.0? (Choose two.)
- A. The feature is enabled by default.
- B. It is operational only on 802.11a/n radio.
- C. It requires Cisco Compatible Extensions clients for uplink statistics only.
- D. It requires Cisco Compatible Extensions clients for uplink and downlink statistics.
- E. It is operational on both 802.11g/b/n and 802.11a/g radio.
Answer: C,E
A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF.
Which statement is true about how the packet is sent from the AP to the final WMM wireless client?
- A. The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
- B. The AP sends the packet with an 802.11 priority tag of 5 (Gold).
- C. The AP sends the packet with an 802.11 priority tag of 3 (Silver).
- D. The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
Answer: C
Refer to the exhibit.
What two items of multicast information can be interpreted from the WLC display? (Choose two.)
- A. IGMP snooping is disabled.
- B. VideoStream is allowed for the wireless client.
- C. IGMP snooping is enabled.
- D. WLC-to-AP multicast mode is configured for Unicast.
- E. WLC-to-AP multicast mode is configured for multicast.
- F. VideoStream is not allowed for the wireless client.
Answer: B,C
A downstream packet containing a DSCP value arrives at the WLC Ethernet interface from the wired source network. The WLC is configured for QoS WLAN 802.1p mapping. How does the WLC treat the CAPWAP QoS marking when leaving the controller interface for the respective AP and final wireless client destination?
- A. The outer CAPWAP DHCP is marked and capped without any inner DSCP value.
- B. No outer CAPWAP or inner QoS tagging is applied.
- C. The outer CAPWAP CoS is marked and capped while the inner DSCP maintains the original marking.
- D. No outer CAPWAP QoS tag is applied, but the original DSCP is maintained inside CAPWAP.
Answer: C
When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.)
- A. packet loss
- B. client association
- C. throughput
- D. jitter
- E. latency
- F. number of users on the network
Answer: A,D,E
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