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Cisco 642-742 Exam Syllabus Topics:

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

1. Users are experiencing poor audio quality when calling from their 7925 series VoIP Phones. Call quality is exceptional from wired to wired phones, but not from wired to wireless phones. The wired network has QoS deployed properly and the SSID is configured with Platinum QoS. What should be verified to troubleshoot the issue?

A) The controller is marking the 802.1p tag of 3, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
B) The controller is marking the 802.1p tag of 4, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.
C) The controller is marking the 802.1p tag of 5, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
D) The controller is marking the 802.1p tag of 6, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.

2. Which two statements are correct if IGMP snooping is enabled on a Cisco WLC v7.0?
(Choose two.)

A) The IGMP packets from the wireless clients are received at the Cisco WLC, which generates a query for the client.
B) The router IGMP table is updated with the IP address of the wireless clients as the last reporter.
C) The IGMP packets from the wireless clients are forwarded to the router without modifications.
D) The IGMP packets from the wireless clients are received at the WLC and are used to update the router via a Cisco Group Management Protocol update from the Cisco WLC.
E) The router IGMP table is updated with the IP address of the Cisco WLC as the last reporter.

3. 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) increased data rate at same distance
B) increased data rate at increased distance
C) benefits in 2.4 GHz only
D) increased data rate at reduced distance
E) benefits in 5 GHz only
F) benefits in both 2.4 and 5 GHz

4. You have recently added Cisco Unified Wireless IP Phones 7921G and 7925G to your branch office. The new wireless and wired IP phones are experiencing poor call quality when receiving calls across the IP WAN from the remote HQ. What is the most likely issue?

A) The Cisco Unified Communications Manager gatekeeper-controlled CAC has been set too low, resulting in poor call quality.
B) The Cisco Unified Communications Manager bandwidth for the IP WAN link is not properly configured and is allowing more calls than the link can accommodate.
C) The Cisco Unified Communications Manager bandwidth settings have not been increased to support the new wireless IP phones.
D) The Cisco Unified Communications Manager bandwidth is set too low, resulting in poor call quality.

5. Which two configurations can resolve one-way audio in WLANs? (Choose two.)

A) maximum transmit power
B) DTPC
C) admission control
D) TPC on AP
E) Platinum QoS in the WLAN

Solutions: