642-742 무료 덤프문제 온라인 액세스

Clients are experiencing artifacts in multicast video even though the network was recently upgraded to 802.11n APs. What three configuration changes will be most effective to improve performance? (Choose three.)

• A.increase mandatory data rate
• B.increase QoS marking on multicast
• C.enable 40 MHz wide channels
• D.disable Multicast Messaging
• E.enable Call Admission Control
• F.enable VideoStream

Dual-mode phone users are requesting the ability to transfer calls from VoIP to cellular and the engineer has decided to implement the Handoff DN method. What information is required by the Call Manager?

• A.outgoing caller ID
• B.SIP connection to cell provider
• C.incoming caller ID
• D.H.323 connection to cell provider

A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and
wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF.
Which statement is true about how the packet is sent from the AP to the final WMM wireless client?

• A.The AP sends the packet with an 802.11 priority tag of 6 (Platinum).
• B.The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
• C.The AP sends the packet with an 802.11 priority tag of 5 (Gold).
• D.The AP sends the packet with an 802.11 priority tag of 3 (Silver).

In order to place a call, what is the first step that a wireless phone must do?

• A.Update its firmware with the Call Manager.
• B.Register with a call agent.
• C.Authenticate with the web authentication server.
• D.Associate with the wireless infrastructure.

A customer has configured a wireless LAN controller and set the 802.11a/n data rates. All rates are enabled where 5.5 Mbps, 11 Mbps, and 24 Mbps are set to Mandatory. What will APs send over the 24 Mbps data rate?

• A.channel announcements
• B.multicast broadcast
• C.DTPC support
• D.beacons