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Cisco 642-742 Exam Syllabus Topics:

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

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

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

2. 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) Wireless clients transmitting at a UP of 5 will cause the access point to cease going off channel to scan.
B) The access points would only go off channel to scan if there were devices transmitting with a UP of 4.
C) Cameras transmitting with a UP of 4 will cause the access point to go off channel to scan.
D) The access points would go off channel to scan whether there were voice devices transmitting or not.

3. 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?

A) show ip mcache
B) show ip igmp
C) show ip route
D) show ip interface counts
E) show ip mroute

4. Refer to the exhibit.

What three items of multicast information can be interpreted from the WLC displays? (Choose three.)

A) VideoStream is allowed for the wireless client.
B) WLC-to-AP multicast mode is configured for unicast.
C) QoS was configured and lowered to best effort.
D) VideoStream is not allowed for the wireless client.
E) The ingress WLC multicast stream is IP address 239.1.1.1.
F) IGMP snooping is enabled.
G) IGMP snooping is disabled.
H) WLC-to-AP multicast mode is configured for multicast using IP address 239.1.1.1.

5. A network engineer is deploying wireless voice with a 20% overlap at -67dBm. After testing, the cell edge is determined to be 50 feet from the AP. How far away should the next AP be placed?

A) 70 feet
B) 80 feet
C) 100 feet
D) 90 feet
E) 60 feet

Solutions: