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Exam : Cisco 642-741
Title : Implementing Cisco Unified Wireless Voice Networks

1. What frame type is used to signal TSPEC reservation from a client?
A. RSVP
B. ADDTS
C. 802.11 association information elements
D. WMM capabilities exchange
Answer: B

2. Which two statements are correct regarding multicast implementation using a WLAN controller (v2) and AP? (Choose two.)
A. Multicast traffic is sent out on Cisco APs at the highest mandatory data rate.
B. Multicast traffic is sent out on Cisco APs at the highest supported data rate.
C. On Cisco APs, multicast traffic and beacons are sent out at the same data rates to maintain a common cell size for normal data as well as multicast data.
D. If there is more than one mandatory data rate, multicast traffic will be sent at the highest mandatory rate and beacons will be sent at the lowest mandatory rate.
E. On Cisco APs, multicast traffic will be sent out at the highest data rate that a client can maintain with the AP.
Answer: AD

3. Which two messages can carry the TSPEC from client to the AP? (Choose two.)
A. probe request
B. association request
C. authentication request
D. reassociation request
Answer: BD

4. On the Cisco Aironet Access Points connected to a Cisco Unified Wireless LAN controller, which TCLAS queue transmits RTP packets with correct 802.11e QoS markings?
A. UP
B. VO
C. VI
D. BK
E. BE
Answer: B

5. Which protocol is used by multicast to prevent loops?
A. OSPF
B. RIP
C. RPF
D. BGP
E. EIGRP
Answer: C

6. Which two statements are correct if IGMP snooping is enabled on a Cisco WLC? (Choose two.)
A. The router IGMP table is updated with the IP address of the wireless clients as the last reporter.
B. The IGMP packets from the wireless clients are forwarded to the router without modifications.
C. The IGMP packets from the wireless clients are received at the Cisco WLC, which in turn generates a query for the client.
D. The IGMP packets from the wireless clients are received at the WLC and are used to update the router via 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.
Answer: CE

7. What must be true about the client before upstream traffic stream metrics can be displayed on the Cisco WLC?
A. must be Cisco Compatible Extensions version 2
B. must be Cisco Compatible Extensions version 3
C. must be Cisco Compatible Extensions version 4
D. must be associated to a Platinum QoS WLAN
E. must be associated to an access point on a Cisco WLC with code version 5.0 or newer
Answer: C

8. Which statement describes the WLCv5.2 delivery of a multicast packet from a wired PC source on VLAN_X to a respective wireless client using SSID_X, using a WLAN controller enabled for multicast?
A. A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless multicast.
B. A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless unicast.
C. A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless multicast.
D. A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless multicast.
E. A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless unicast.
F. A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless unicast.
Answer: C