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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 |
| Exam Format: | Simulation-based questions, Multiple choice, Multiple response |
| Related Certifications: | CCNP Wireless CCNA Wireless |
| Available Languages: | English |
| Real Exam Qty: | Approximately 55–65 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years (Cisco certification validity cycle) |
| Passing Score: | Variable (typically around 790/1000, Cisco scaled scoring) |
| Exam Price: | USD 300 (varies by region) |
| Recommended Training: | Cisco Authorized Training Courses Cisco Learning Network - Wireless Training Resources |
| Exam Registration: | Cisco Certification Exam Registration (Pearson VUE) |
| Sample Questions: | Cisco 642-742 Sample Questions |
| Exam Way: | Proctored exam delivered via Pearson VUE (online or authorized test center) |
| Pre Condition: | No strict prerequisites, but CCNA Wireless or equivalent knowledge recommended. |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams.html |
Cisco 642-742 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Roaming and Mobility | - Fast secure roaming (CCKM, 802.11r concepts) - Layer 2 and Layer 3 roaming behavior |
| Topic 2: Cisco Unified Wireless Architecture | - Controller-based WLAN design - Access point and controller interaction |
| Topic 3: Call Admission Control (CAC) | - Bandwidth management for voice sessions - CAC mechanisms in WLAN environments |
| Topic 4: Wireless Voice Fundamentals | - 802.11 standards and voice considerations - Voice over WLAN concepts |
| Topic 5: QoS for Wireless Voice | - WMM (Wi-Fi Multimedia) and prioritization - End-to-end QoS design |
| Topic 6: Voice Deployment and Troubleshooting | - Common voice quality issues and diagnostics - VoWLAN deployment best practices |
Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:
A client reports that video is not streaming. The administrator determines the client is connecting at a data rate of 12 Mbps and is trying to stream to a valid multicast address on the network. What three items should the administrator check next to troubleshoot the issue? (Choose three.)
- A. SSID has been set for a QoS value of Gold.
- B. SSID has been set for a QoS value of Platinum.
- C. IGMP snooping is turned off because the client cannot request to join a group, only access points can.
- D. Video-stream for the multicast video is configured in the controller.
- E. SSID has been configured to allow multicast-direct and multicast-direct has been enabled globally.
- F. RTSP is used to stream the video due to wireless multicast not using acknowledgements.
What three changes occur when you replace a legacy 802.11a/b/g Cisco AP with an 802.11a/b/g/n Cisco 3500 Series AP? (Choose three.)
- A. benefits in 5 GHz only
- B. increased data rate at same distance
- C. benefits in 2.4 GHz only
- D. increased data rate at increased distance
- E. increased data rate at reduced distance
- F. benefits in both 2.4 and 5 GHz
A support technician is reviewing wireless configurations for a voice network. They notice the off channel scan defer has been set for 4, 5, and 6. What would occur if the technician was to deselect 5 and 6?
- A. The access points would only go off channel to scan if there were devices transmitting with a UP of 4.
- B. Cameras transmitting with a UP of 4 will cause the access point to go off channel to scan.
- C. The access points would go off channel to scan whether there were voice devices transmitting or not.
- D. Wireless clients transmitting at a UP of 5 will cause the access point to cease going off channel to scan.
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. -73 dBm
- B. -62 dBm
- C. -60 dBm
- D. -55 dBm
- E. -70 dBm
- F. -67 dBm
Refer to the exhibit.
Which three statements describe the WLC configuration? (Choose three.)
- A. It applies to platinum and gold QoS.
- B. It enables TSPEC, given other appropriate configurations.
- C. It enables QBSS, given other appropriate configurations.
- D. It applies to platinum QoS.
- E. CAC values are relatively high.
- F. CAC values are relatively low.
By Mortimer
