In which solution is a router ACL used...

单项选择题In which solution is a router ACL used?（）

A.protecting a server frome unauthorized acces
B.controlling path selection,based on the route metric
C.reducing router CPU utilization
D.filterring packets that are passing through a router

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1.多项选择题Which two statements about static NAT translations are true？（）

A.They are always present in the NAT table.
B.They allow connection to be initiated from the outside.
C.They can be configured with access lists， to allow two or more connections to be initiated from theoutside.
D.They require no inside or outside interface markings because addresses are statically defined.

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2.单项选择题Which command can be used from a PC to verfy the connectivity between host that connect through path?（）

A.tracert address
B.ping address
C.arp address
D.traceroute address

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3.多项选择题Cisco安全代理CSA包括（）部分

A.策略中心
B.管理中心
C.安全代理
D.配置系统

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4.单项选择题If an Ethernet port on a router was assigned an IP address of 172.1.1.1/20，what is the maximum number ofhosts allowed on this subnet？（）

A.4094
B.1024
C.8190
D.2046
E.4096

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5.多项选择题IDS和IPS技术使用（）部署方式

A.基于防火墙的IPS部署
B.基于软件的IPS部署
C.基于网络的IPS部署
D.基于主机的IPS部署

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6.单项选择题What is the function of the command switchport trunk native vlan 999 on a switch?（）

A.It designates VLAN 999 for untagged traffic.
B.It blocks VLAN 999 traffic from passing on the trunk.
C.It creates a VLAN 999 interface.
D.It designates VLAN 999 as the default for all unkown tagged traffic.

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7.多项选择题IDS和IPS传感器可以是以下设备中的哪些（）

A.配置了Cisco IOS IPS软件的路由器
B.专门的Cisco网络防火墙
C.专门设计用来提供专有IDS或IPS服务的设备
D.安装在相应的安全设备、交换机或路由器上的网络模块

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8.单项选择题Which IPsec security protocol should be used when confidentiality is required?（）

A.AH
B.MD5
C.PSK
D.ESP

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9.单项选择题The EIGRP configuration in the Glencoe router uses a single network statement.From the output shown in the graph would advertise these networks in EIGRP?（）

A.network 172.26.168.0 area 478
B.network 172.26.0.0
C.network 172.26.168.128 0.0.0.127
D.network 172.26.168.128 area 478

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10.多项选择题基于上下文的访问控制CBAC有那些局限性（）

A.导致网络性能下降
B.接口间的流量控制策略复杂
C.策略不能绑定到主机组或子网，通过一个接口的所有流量经过同样的检查
D.处理过于依赖ACL

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