多项选择题

Refer to the exhibit.From the MAC addresses shown in the command output，to which two ports is the multicast stream 225.230.57.199 being forwarded on this switch？（）

A.Fa6/28
B.Fa7/20
C.Gi3/7
D.Fa4/2
E.Fa4/14
F.Fa4/38
G.Fa6/38
H.Fa5/7

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单项选择题

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.

问答题

在R2的BGP里面：network 198.16.0.0/16 network 10.1.1.0/19 network 10.1.1.0/24.在R1上要求只收：10.1.1.0/19的路由。请选择在R1上面的哪个配置是正确的：
1.access-list 100 permit ip 10.1.0.0 0.0.0.255 host 255.255.224.0
Router bgp 1
Distribute-list 100 in
2.access-list 10 permit 10.1.0.0 0.0.31.0

单项选择题

You are the network administrator of an enterprise with a main site and multiple remote sites. Your network carries both VOIP and data traffic. You agree with your service provider to classify VOIP and data traffic according to the different service RFCs. How can your data and VOIP traffic be marked？（）

A.data marked with DSCP AF21，VOIP marked with DSCP EF
B.data marked with DSCP AF51，VOIP marked with DSCP EF
C.data marked with the DE-bit，VOIP marked with the CLP-bit
D.data marked with DSCP EF，VOIP marked with DSCP AF31
E.data marked with IP precedence 5 VOIP marked with DSCP EF