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A.none，since it is implicit
B.to enable Cisco IOS IPS to work properly；however，it is the deny all traffic entry that is actually required
C.to enable Cisco IOS Firewall to work properly；however，it is the deny all traffic entry that is actually required
D.to allow the log option to be used to log any matches
E.to prevent sync flood attacks
F.to prevent half-opened TCP connections
最新试题
Which of the following describes the roles of devices in a WAN?（）
aaa架构中哪个是要求用户输入用户名和密码？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
What is the three main step of using the QoS feature with MQC command line interface？
As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）
four switches， which one will be root switch.（no pic）.
什么是NAT？
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
what is the advantage of policing opposite to shaping？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）