A. QoS classified at layer 3 using IP precedence or DSCP.
B. Guaranteed rate service.
C. Implemented using FIFO queues.
D. All traffic has an equal chance of being dropped.
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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
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.
最新試題
Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is configured on all switches in the network. SW_B receives this error message on the console port：00：06：34： %CDP-4-DUPLEX_MISMATCH： duplex mismatch discovered on FastEthernet0/5 （not half duplex）， with SW_A FastEthernet0/4 （half duplex） ， with TBA05071417（Cat6K-B） 0/4 （half duplex）. What would be the possible outcome of the problem？（）
Which statement is correct about the use of the virtual interface on a WLC ？（）
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
Which two statements about the various implementations of STP are true？（）
Which option correctly identifies the Cisco IOS switching methods in descending order from the fastest method to the slowest method？（）
Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）
Refer to the exhibit. On the basis of the output of the show spanning-tree inconsistentports command， which statement about interfaces FastEthernet 0/1 and FastEthernet 0/2 is true？（）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）