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哪個設(shè)備會被選為根橋？


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1.單項選擇題

Refer to the exhibit. When applying this policy map on the tunnel1 interface， you see packet loss for the TCP class starting at around 100000 b/s， instead of the configured 150000 b/s. What is the most likely cause of the discrepancy？（）

A.The violate-action command should not be configured.
B.The current configuration of the load-interval command on the tunnel interface is preventing proper policing calculations.
C.The burst size is too low.
D.Policing on tunnel interfaces is not supported.
E.The CIR keyword is missing in the policer.

3.單項選擇題

Refer to exhibits 1 and 2. In exhibit 1，all users on the LAN segment use router A as the active HSRP router. Router B is the standby router for the HSRP. In exhibit 2，the network management team reported that there is no utilization on the WAN link B. To solve this problem，you decide to change the logical topology of your LAN，but you are not sure about what changes must be made. You must manage HSRP or change it to another protocol in order to provide the most scalable design，automatic redundancy，and load balancing. Which one of these actions would be the best choice？（）

A.Use MHSRP，with three users using router A as the default gateway and three users using router B as the default gateway.
B.Keep HSRP and activate PBR to redirect half of the traffic to the other WAN link.
C.Use the backup interface on the WAN link B to provide load balancing for all users.
D.Use GLBP instead，because it provides you with up to three MAC addresses for the same default gateway virtual IP address.
E.Use GLBP instead，because it provides you with up to four MAC addresses for the same default gateway virtual IP address.

4.單項選擇題

Refer to the exhibit. When applying this hierarchical policy map on the on the tunnel1 interface， you measure high jitter for traffic going through class 1234. What is the most likely cause of this jitter？（）

A.The configuration of a hierarchical policy map on a tunnel interface is not supported.
B.Class 5555 and class 5554 are both taking up 100% of the bandwidth， leaving nothing for class 1234.
C.The burst size for the traffic shaping is wrongly configured to 15000； this would require an interface capable of sending at 150Mb/s.
D.The burst size for the traffic shaping has been wrongly configured； it should be set as low as possible.
E.The burst size for the traffic shaping has been wrongly configured； it should be set as high as possible.