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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 main difference between the Cisco Unified Wireless IP Phones 7921G and 7925G?

A) 7925G supports WPA2, whereas the 7921G supports only WPA1.
B) The 7925G has support for 802.11n, whereas the 7921G does not.
C) The 7925G supports 802.11a/b/g, whereas the 7921G supports only 802.11b/g.
D) The 7925G is suited for a more rugged environment.

2. An engineer has been assigned the task of deciding the cell overlap for a wireless voice deployment. Which Cisco measurement recommendation should be considered?

A) The edge of the cell should be -67 dBm.
B) One AP should be deployed per 3000 square feet.
C) The edge of the cell should be below 35 RSSI.
D) The measurement should be done on the 2.4-GHz band.

3. A Cisco WLC v7.0 is properly configured for 802.11n and multicasting video without the optional Cisco VideoStream. Which three options best describe the frames that are sent from the AP to the wireless clients? (Choose three.)

A) After startup, throughput can vary over time.
B) multicast to subscribed clients
C) retransmission upon failure of delivery
D) no retransmission
E) After startup, throughput is consistent.
F) unicast to subscribed clients

4. 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) If the parameters are consistently good, then voice-related issues being reported by users are probably not related to RF parameters.
C) 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.
D) Comparing the information to the location of the client can provide the first hint of voice-related issues.
E) Comparing the RSSI and SNR can provide specific information on the relative distance of the client from the AP during a call.

5. A WLC v7.0 is configured for multicast with WLC-to-AP multicast mode using IP address 239.10.10.10, IGMP snooping enabled, and all other parameters set to default. Which two statements describe how a wired ingress broadcast and multicast frame are handled? (Choose two.)

A) WLC will drop the broadcast frame.
B) WLC will forward a multicast frame to only APs and their respective WLANs with active clients.
C) WLC will forward a broadcast frame to only APs and their respective WLANs with active clients.
D) WLC will forward the broadcast frame to all APs and then to only WLANs with active clients.
E) WLC will forward the broadcast frame to all APs and then to all WLANs.
F) WLC will forward the multicast frame to all APs and then to all WLANs.
G) WLC will drop the multicast frame.
H) WLC will forward the multicast frame to all APs and then to only WLANs with active clients.

Solutions: