The Company is rolling out Cisco’s Architecture for Voice， Video and Integrated Data （AVVID）.
Which of the following choices represent the fundamental intelligent network services in Cisco’s AVVID？ （）
A. Quality of Service （QoS）
B. Intelligent platforms
C. Mobility and scalability
D. Security
E. High availability
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Refer to the exhibit.
What is the effect when the switchport priority extend cos 3 command is configured on the switch port interface connected to the IP phone？（）
A. The IP phone is enabled to override with aCoS value of 3 the existing CoS marking of the PC attached to the IP phone.
B. The switch will no longer tag incoming voice packets and will extend the trust boundary to the distribution layer switch.
C. RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link.
D. Effectively， the trust boundary has been moved to the PC attached to the IP phone.
E. The computer is now establishing theCoS value and has effectively become the trust boundary.
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？（）
A. mls qos cos 2 override
B. switchport priority extend cos 11
C. switchport priority extend trust
D. switchport priority extend none
E. mls qos cos 2
F. switchport priority extend cos 2
You have configured voice VLANs on Catalyst switch R1.
Which two statements are true about the operation of voice VLANs on this device？ （）
A. When the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port.
B. Enabling voice VLANs enables the switch to create multiple queues for traffic that is entering a port.
C. When voice VLANs are configured on a trunk link， UplinkFast must also be enabled.
D. Voice VLANs are configured to enable the switch to forward frames marked with the proper CoS values over separate physical links.
E. Enabling voice VLANs enables the switch to forward frames with a specific 802.1P marking.
Refer to the exhibit.
Which statement is true about the configuration that is shown？ （）
A. Untagged ingress traffic will be dropped.
B. Ingress traffic from the host will be tagged with theCoS value of 5.
C. Tagged and untagged ingress traffic will be carried on VLAN 1.
D. Untagged ingress traffic will be marked with the default CoS value of the port.
The Company network administrator has entered the "auto qos voip cisco-phone" command on switch R1.
What does this command do？（）
A.It disables the trust boundary feature because the switch knows a Cisco IP phone is attached.
B.The switch assigns a CoS value of 5 to incoming packets.
C.If a Cisco IP phone is attached and removed， the switch continues to trust the CoS values as long as the switch is not rebooted.
D.It turns on STP to see if a Cisco IP phone is attached.
E.If a Cisco IP phone is attached， the switch trusts the CoS.
F.None of the other alternatives apply.
最新試題
Which statement is correct about the use of the virtual interface on a WLC ？（）
During routine maintenance， it became necessary to shutdown G1/0/1 on DS1 and DS2. All other interface were up. During this time， DS1 became the active device for Vlan104’s HSRP group. As related to Vlan104’s HSRP group. What can be done to make the group function properly ？ （）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
Refer to the exhibit. STP has been implemented in the network. Switch SW_A is the root switch for the default VLAN. To reduce the broadcast domain， the network administrator decides to split users on the network into VLAN 2 and VLAN 10. The administrator issues the command spanning-tree vlan 2 root primary on switch SW_A. What will happen as a result of this change？（）
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this？（）
During routine maintenance， G1/0/1 on DS1 was shutdown. All other interface were up. DS2 became the active HSRP device for Vlan101 as desired. However， after G1/0/1 on DS1 was reactivated. DS1 did not become the active HSRP device as desired. What need to be done to make the group for Vlan101 function properly ？ （）
Which three statements about STP timers are true？（）
Which two statements are true when the extended system ID feature is enabled？ （）
Refer to the exhibit. Initially， LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements are true about the possible result of attaching the second link？（）
Refer to the exhibit. For what purpose is the command show ip cef used？（）