QUESTION 41
Which two statements are correct if IGMP snooping is enabled on a Cisco WLC v7.0? (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 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 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.

Answer: CE

QUESTION 42
WLC v7.0 is configured for multicast with WLC-to-AP multicast mode, using IP address 239.10.10.10 and IGMP snooping enabled, with all other parameters set to default. What QoS value is given to multicast traffic between a WLC and APs?

A.    CS6
B.    EF
C.    CS5
D.    CS4
E.    CS3
F.    CS2
G.    CS1
H.    BE

Answer: H

QUESTION 43
WLCs v7.0 have been configured for multicast and IGMP snooping enabled, with all other parameters set to default. A wireless client actively receiving a multicast group roams from WLC1 to WLC2, both of which are configured for the client IP subnet. Which statement describes the roaming process?

A.    There is no required action from the client and WLC2 becomes the local anchor controller.
B.    A new IGMP packet is required from the client and WLC2 becomes the local anchor controller.
C.    There is no required action from the client and WLC2 becomes foreign controller and WLC1 becomes anchor controller.
D.    A new IGMP packet is required from the client and WLC2 becomes foreign controller and WLC1 becomes anchor controller.

Answer: A

QUESTION 44
Which two multicast modes are valid for use with Ethernet bridging on a mesh AP? (Choose two.)

A.    mesh bridge in
B.    regular
C.    bidirectional bridge
D.    in
E.    out

Answer: BD

QUESTION 45
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 forward the broadcast frame to all APs and then to all WLANs.
B.    WLC will forward the broadcast frame to all APs and then to only WLANs with active clients.
C.    WLC will forward a broadcast frame to only APs and their respective WLANs with active clients.
D.    WLC will drop the broadcast frame.
E.    WLC will forward the multicast frame to all APs and then to all WLANs.
F.    WLC will forward the multicast frame to all APs and then to only WLANs with active clients.
G.    WLC will forward a multicast frame to only APs and their respective WLANs with active clients.
H.    WLC will drop the multicast frame.

Answer: DF

QUESTION 46
What three minimal configurations are required for a correctly scaled multicast configuration using WLC v7.0? (Choose three.)

A.    Enable global multicast mode
B.    Enable IGMP snooping
C.    Configure IGMP timeout for 60 seconds
D.    Configure IGMP query interval for 20 seconds
E.    Enable WLAN multicast VLAN feature
F.    EnableAP multicast mode for multicast
G.    Enable AP multicast mode for Unicast

Answer: ABF

QUESTION 47
A small wireless controller-based network is installed and configured inside a corporate building using Cisco 2500 Series controllers and 3500 Series APs using local, monitor, and rogue detector modes. All wireless clients have been working and now require multicast applications. WLC multicast is configured using multicast mode with IP address 239.10.10.10 and other parameters set to default. However, the wireless multicast traffic has limited success and does not work throughout the corporate building. What three actions can help resolve the problems? (Choose three.)

A.    Enable WLC IGMP snooping.
B.    Change WLC from multicast mode to Unicast mode in case of wired multicast infrastructure issues.
C.    Verify router and switch multicast configurations.
D.    Change all APs to just local and rogue detector modes.
E.    Change all APs to local mode and monitor mode.
F.    Change all APs to local mode.
G.    Increase the WLC-to-AP multicast QoS marking.
H.    Verify IP address and port used by the multicast application.

Answer: CFH

QUESTION 48
Refer to the exhibit. What three items of multicast information can be interpreted from the WLC displays? (Choose three.)

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

Answer: CEF

QUESTION 49
Refer to the exhibit. What two items of multicast information can be interpreted from the WLC display? (Choose two.)

A.    WLC-to-AP multicast mode is configured for Unicast.
B.    WLC-to-AP multicast mode is configured for multicast.
C.    IGMP snooping is disabled.
D.    IGMP snooping is enabled.
E.    VideoStream is allowed for the wireless client.
F.    VideoStream is not allowed for the wireless client.

Answer: DE

QUESTION 50
Which two range descriptions correctly describe IP addressing to use when enabling multicast support using the Cisco Unified Wireless Solution? (Choose two.)

A.    globally scoped address range
B.    239.0.0.X or 239.128.0.X address range
C.    administratively scoped address range that does not overlap with a link-local MAC address
D.    any Class D address range
E.    site-local scoped address range

Answer: CE

If you want to pass Cisco 642-742 successfully, donot missing to read latest lead2pass Cisco 642-742 practice tests.
If you can master all lead2pass questions you will able to pass 100% guaranteed.

http://www.lead2pass.com/642-742.html