题目内容

Replace the underlined words with the correct form of the words below. You may need to make other changes.advocateaerialcomprehensivecophealloungesetback1. I went to a mixed-ability secondary school just outside London.2. I got stopped by a policeman who asked to see my driving licence.3. Have you seen this beautiful view of Oxford from the air?4. She had a good job but she suffered a problem with her health.5. I hurt my leg badly a couple of months ago, and it still hasn’t got better completely.6. When he got home from work his son was lying lazily on the couch listening to music.7. You should speak to Toby; he’s a supporter of flexible working hours.

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【单选题】关于访问控制列表编号与类型的对应关系,下列描述正确的是( )。

A. 基本的访问控制列表编号范围是1000-2999
B. 高级的访问控制列表编号范围是3000-4000
C. 二层的访问控制列表编号范围是4000-4999
D. 基于接口的访问控制列表编号范围是1000-2000

【单选题】下列哪项参数不能用于高级访问控制列表?

A. 物理接口
B. 目的端口号
C. 协议号
D. 时间范围

【单选题】[RTA]acl 2001 [RTA-acl-basic-2001]rule permit source 10.0.1.0 0.0.0.255 [RTA-acl-basic-2001]rule deny source 10.0.1.0 0.0.0.255一台AR2220路由器上使用了如上ACL配置来过滤数据包,则下列描述正确的是( )。

A. 10.0.1.0/24网段的数据包将被拒绝
B. 10.0.1.0/24网段的数据包将被允许
C. 该ACL配置有误
D. 以上选项都不正确

【单选题】[RTA]acl 2001 [RTA-acl-basic-2001]rule 20 permit source 20.1.1.0 0.0.0.255 [RTA-acl-basic-2001]rule 10 deny source 20.1.1.0 0.0.0.255在路由器RTA上完成如上所示的ACL配置,则下列描述正确的是( )。

A. VRP系统将会自动按配置先后顺序调整第一条规则的顺序编号为5
B. VRP系统不会调整顺序编号,但是会先匹配第一条配置的规则permit source 20.1.1.0 0.0.0.255
C. 配置错误,规则的顺序编号必须从小到大配置
D. VRP系统将会按顺序编号先匹配第二条规则deny source 20.1.1.0 0.0.0.255

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