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Tag Archives: Describe and Design Voice over Wireless Architecture

23 Mar

642-742 IUWVN Online Test-Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0

Currently, our 642-742 IUWVN online test only provide 10 questions. Answer one question correctly, you can get 10 points. The content of these questions are the latest exam content. Please feel free to test your skill level.

If you have some opinions or suggestions about our online test, please leave your message, we will improve it step by step.

Now, begin to test:

A customer recently placed 10 WLCs in a mobility group and now sees a large amount of additional traffic to and from the controller. What setting should be changed to reduce the traffic?


When designing a large, high-availability wireless network, what changes to a mobility-group would create less load on the controllers while maintaining the same mobility messages?


A network engineer is having wireless multicast fail when it hits the wired network. What command will show the source of multicast groups for troubleshooting?


After enabling global multicast, multicast traffic has been flooding the wired and wireless network. The wireless engineer has been troubleshooting and is attempting to find the source of the traffic. What command will display the multicast traffic source as well as the incoming interface?


A customer is having issues streaming video over wireless in a few high-density areas of their campus. After further investigation, the administrator has singled out the issue pertains to the clients associated to 802.11b/g only access points. The rest of the campus is covered in 802.11n access points. What is a possible reason for the issue with video streaming on the 802.11b/g access points as opposed to the 802.11n access points?


Which two critical requirements must be addressed in the RF site survey for wireless video surveillance? (Choose two.)


When calculating bandwidth usage for an application, what two values represent the minimum and maximum 802.11 overhead per frame? (Choose two.)


After implementing mesh with an IP surveillance camera connected to the LAN port on a RAP, the engineer notices that QoS is not being marked. In this setup, what device is responsible for marking upstream traffic from the camera?


When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.)


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?


Question 1 of 10






22 Sep

Latest Cisco 642-742 IUWVN Exam Sample Questions

Latest Cisco 642-742 IUWVN exam sample questions are available, which can make sure you pass the test. There are 50-60 questions in real Cisco 642-742 IUWVN exam, which will take the candidates 90 minutes to complete the test. The available languages are English and Japanese. Candidates can register Cisco 642-742 IUWVN exam at Pearson VUE testing center.

Share some Cisco 642-742 IUWVN exam sample questions below.

Which statement describes the benefit of WMM U-APSD over legacy 802.11 power-save mode?
A. Client can burst data without standard interframe spacing.
B. Client can burst data without ACKs.
C. Client no longer sends null frame to notify of sleep mode.
D. Client sleep mode is scheduled by AP to reduce jitter.
Answer: A

Which two items enable WMM to expedite frames from respective traffic categories? (Choose two.) Consistent CWmin and CWmax values Dynamic CWmin and CWmax values
F. PS-Poll
Answer: B,C

Get more Cisco 642-742 IUWVN exam sample questions here.


06 Sep

642-742 IUWVN Implementing Cisco Unified Wireless Voice Networks

The 642-742 IUWVN Implementing Cisco Unified Wireless Voice Networks exam is the exam associated with the CCNP Wireless certification. This Cisco 642-742 IUWVN exam assesses a candidate’s capability to integrate VoWLAN services into the WLAN and be able to implement QoS, MPLS, and high bandwidth applications into the wireless network.

Implementing Cisco Unified Wireless Voice Networks is the full name of 642-742 IUWVN test. The Associated Certification is CCNP Wireless. There are 50-60 questions in real Cisco 642-742 IUWVN exam, which will take the candidates 90 minutes to complete the test. The available languages are English and Japanese. Candidates can register Cisco 642-742 IUWVN exam at Pearson VUE testing center.

Knowing Cisco 642-742 IUWVN exam topics are valuable in your preparation.

27% 1.0 Describe and Design Voice over Wireless Architecture

1.1 Describe voice as it applies to the wireless network
1.1.a Components (hardware and software)
1.1.b Call setup/data flow overview
1.1.c Other wireless voice and video services
1.1.d Standards (.11r, .11e, .11n)
1.1.e Cisco Compatible Extensions (voice features)
1.1.f Wi-Fi Multimedia (WMM)
1.1.g UAPSD
1.1.h Codecs
1.1.i Signaling Connection Control Part (SCCP)
1.1.j Session Initiation Protocol (SIP)
1.2 Design wireless for voice
1.2.a Minimum speed requirements – RSSI and SNR
1.2.b Overlap requirements
1.2.c Cell separations
1.2.d Traffic separation/quality of service (QoS)/voice VLAN
1.2.e Delay and jitter reqs
1.2.f Testing tools (AirMagnet and Veriwave)
1.2.g CAC and TSPEC
1.2.h Spectrum
1.2.h .11n
1.2.i Wireless voice client requirements
1.3 Utilize other design considerations, as per the voice design guide (VAD, MoH, Load balancing, and so on)
1.3.a VAD
1.3.b MoH
1.3.c Load balancing
1.4 Validate wireless network design for voice readiness
1.4.a Utilize the WCS voice readiness tool
1.4.b Validate site survey for voice
1.5 Validate infrastructure requirements for end-to-end voice over wireless
1.5.a CUCM
1.5.b CUCME
1.5.c QoS
1.5.d ACS
1.5.e DHCP
1.5.f TFTP
1.5.g routers
1.5.h security devices
1.6 Describe VoWLAN integration with cellular providers

25% 2.0 Implement VoWLAN

2.1 Configure wireless client devices
2.1.a Reference current best practice guidelines
2.1.b Device security considerations
2.2 Configure the WLAN for VoWLAN
2.2.a Implement current best practice guidelines
2.2.b Security configurations (PEAP, EAP-TLS, EAP-FAST)
2.2.c CCKM/PKC, 802.11r
2.3 Troubleshoot VoWLAN implementation
2.3.a Spectrum Expert
2.3.b AirMagnet VoFi analyzer
2.3.c Traffic stream Metrics (TSM)
2.3.d Incremental complexity testing

20% 3.0 Implement QoS for Wireless Applications

3.1 Describe and implement general considerations for wired QoS
3.1.a Configurations
3.1.b DSCP/802.1p
3.1.c Voice VLAN
3.2 Describe and implement the appropriate Wireless QoS deployment schemes
3.2.a WMM
3.2.b 802.11e
3.2.c Mapping – wired to wireless (five and six mismatching)
3.3 Configure WCS/WLC for QoS
3.3.a Connection admission control (CAC)
3.3.b TSPEC
3.3.c QoS Basic Service Set (QBSS)
3.3.d Queues
3.3.e Bandwidth reservation
3.3.f Disable “DHCP required”
3.3.g Disable Address Resolution Protocol (ARP) unicast
3.3.h Enable ARP caching
3.3.i Cisco Identity Based Networking Services (IBN)
3.4 Reference most current best practice guidelines

17% 4.0 Implement Multicast over Wireless

4.1 Describe general multicast concepts
4.1.a PIM (Sparse & Dense)
4.1.b CGMP
4.1.c IGMP snooping
4.1.d RP
4.2 Describe implications for multicast in 802.11
4.2.a Highest mandatory data rate
4.2.b Unicast and multicast modes
4.2.c Roaming
4.2.d Mesh
4.2.e Controllers having same CAPWAP multicast group
4.2.f Video Stream (reliable multicast)
4.3 Configure multicast in a wireless network
4.3.a Infrastructure multicast group
4.3.b IGMP snooping on the controller
4.3.c Video Stream (reliable multicast)
4.3.d Mobility Group multicast
4.4 Troubleshoot multicast in a wireless network
4.4.a Packet captures
4.4.b Show IPM route
4.4.c Controller logs
4.4.d Debugs
4.4.d (i) Debug bcast IGMP enable
4.4.d (ii) Debug mobility multicast enable

13% 5.0 Prepare the Wireless Network for VIdeo/High- Bandwidth Applications

5.1 Describe benefits of 802.11n for video
5.2 Determine bandwidth requirements for specified applications
5.3 Identify application specific wireless network requirements
5.3.a WLC to wired network
5.3.b Multicast for wireless video
5.3.c Wireless security cameras
5.3.d Real-time video streaming/video conferencing

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