單項(xiàng)選擇題

You want to implement a high availability network using two Cisco routers. You also want to  ensure that the stat of the WAN interfaces can be tracked in doing so. 
Which router redundancy  protocol cannot be configured for interface tracking? ()

A. GLBP
B. HSRP
C. RPR
D. VRRP
E. SLB
F. RPR+
G. None of the other alternatives apply


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3.單項(xiàng)選擇題Which of the characteristics below is associated with the (QoS) Integrated Services Model? ()

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.

5.單項(xiàng)選擇題

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.

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