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

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Cisco 642-742 Exam Syllabus Topics:

Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:

Question 1

What is the best practice for configuring data rates for an 802.11a VoWLAN deployment?

A. Configure a mandatory data rate of 54 Mb/s. Disable data rates below 36 Mb/s and configure all other data rates as supported.
B. Configure a mandatory data rate of 12 Mb/s. Disable data rates below 12 Mb/s and all other data rates as supported.
C. Configure a mandatory data rate of 6 Mb/s. Disable data rates below 6 Mb/s and configure all other data rates as supported.
D. Configure mandatory data rates of 9 and 54 Mb/s. Disable data rates below 6 Mb/s and all other data rates as supported.

Question 2

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 3 (Silver).
B. The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
C. The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
D. The AP sends the packet with an 802.11 priority tag of 5 (Gold).

Question 3

Refer to the exhibit.

Which two statements describe information that you can derive from the WCS v7.0 output from the Monitor Client Detail? (Choose two.)

A. Comparing the RSSI and SNR can provide specific information on QoS performance in the VoWLAN.
B. Comparing the RSSI and SNR can provide specific information on the relative distance of the client from the AP during a call.
C. Comparing the information to the location of the client can provide the first hint of voice-related issues.
D. Comparing the RSSI and SNR can provide specific information on where the client has roamed and if there is a problem with one or more AP configurations.
E. If the parameters are consistently good, then voice-related issues being reported by users are probably not related to RF parameters.

Question 4

Assuming 30% total overhead and no other clients on an AP, how many single stream 802.11n 2.4GHz IP cameras that output a 6 Mbps video feed could one 802.11n AP support?

A. 12 cameras
B. 16 cameras
C. 8 cameras
D. 4 cameras

Question 5

After implementing 802.11n SGI in a noisy environment increased interference is noted, at what level would the interference be introduced by the change?

A. ACKs
B. headers
C. packets
D. symbols

Solutions: