Refer to the exhibit. Which three statements accurately describe this GLBP topology？ （Choose three.）（）
A. Router A is responsible for answering ARP requests sent to the virtual IP address.
B. If Router A becomes unavailable， Router B will forward packets sent to the virtual MAC address of Router A
C. If another router were added to this GLBP group， there would be two backup AVGs
D. Router B is in GLBP listen state.
E. Router A alternately responds to ARP requests with different virtual MAC addresses.
F. Router B will transition from blocking state to forwarding state when it becomes the AVG
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A. LWAPP encrypts control traffic between the AP and the controller.
B. LWAPP encrypts user traffic with a x.509 certificate using AES-CCMP
C. LWAPP encrypts both control traffic and user data.
D. When set to Layer 3， LWAPP uses a proprietary protocol to communicate with the Cisco Aironet APs.
A. A Voice over IP （VoIP） packet consists of the voice payload， IP header， TCP header， RTP header， and Layer 2 link header.
B. The voice carrier stream uses H323 to set up， maintain， and tear down call endpoints.
C. Call control signaling uses Real-Time Transport Protocol （RTP） packets that contain actual voice samples.
D. The sum of bandwidth necessary for each major application， including voice， video， and data， should not exceed 75 percent of the total available bandwidth for each link.
A. The CoS value is trusted for 802.1p or 802.1q tagged traffic.
B. The voice VLAN feature is disabled by default.
C. The IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.
D. When the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port.
E. PortFast is automatically disabled when a voice VLAN is configured.
F. The default CoS value for incoming traffic is set to 0.
A. A lightweight AP receives control and configuration from a WLAN controller to which it is associated.
B. A WLAN client that is operating in half-duplex mode will delay all clients in that WLAN
C. A dhoc mode allows mobile clients to connect directly without an intermediate AP
D. Another term for infrastructure mode is independent service set （IBSS）
E. The Aironet 1230 access point is an example of an access point that operates solely as a lightweight access point.
F. WLANs are designed to share the medium and can easily handle an increased demand of channel contention.
Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）
A. Effectively the trust boundary has been moved to the IP phone.
B. The host is now establishing the CoS value and has effectively become the trust boundary.
C. The switch is rewriting packets it receives from the IP phone and determining the CoS value.
D. The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set theCoS
E. RTP will be used to negotiate a CoS value based upon bandwidth utilization on the link.
最新試題
Refer to the exhibit. Which statement is true？（）
Which statement about the Lightweight Access Point Protocol （LWAPP） protocol is true？（）
Which two statements are true about voice packets in a LAN？ （Choose two.） （）
Which two statements are true about network voice traffic？ （Choose two.）（）
Refer to the exhibit. A Cisco Aironet Wireless LAN Client Adapter has been installed and configured through the ADU on the PC. The Aironet System Tray Utility （ASTU） has been enabled during the installation and the icon appears in the system tray area in the lower right of the desktop. What is the significance of the icon？（）
Refer to the exhibit. Which statement is true about a voice VLAN？（）
Refer to the exhibit. Which Catalyst switch interface command would be used to cause the switch to instruct the phone to override the incoming CoS from the PC before forwarding the packet to the switch？（）
Which two statements about the Cisco Aironet Desktop Utility （ADU） are true？ （Choose two.）（）
Which two types of activities does the Lightweight Access Point Protocol （LWAPP） define？ （Choose two.）（）
If no metric is specified for the routes being redistributed into IS-IS， what metric value is assigned to the routes？（）