你需要创建一个标准访问控制列表用来拒绝主机172.16.198.94/19所在的子网，表示错误的有（）。 A: Aaccess-list 10 deny 172.16.192.00.0.31.255 B: Baccess-list 10 deny 172.16.0.00.0.255.255 C: Caccess-list 10 deny 172.16.172.00.0.31.255 D: Daccess-list 10 deny 172.16.188.00.0.15.255 E: Eaccess-list 10 deny 172.16.192.00.0.15.255

An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21， 23 and 25. What types of packets will be permitted by this ACL (Choose three.)（）。

智慧职教: 考虑通过 access-class in 命令应用至路由器的 ACL 的如下输出。网络管理员从所显示的输出能够得出什么结论？ R1#  Standard IP access list 2 10 permit 192.168.10.0, wildcard bits 0.0.0.255 (2 matches) 20 deny any (1 match)

1.2 List six access technologies. Classify each one as home access, enterprise access, or wide-area wireless access.

创建一个标准访问控制列表用来拒绝网络192.168.160.0到192.168.191.0内的主机，下面表达式正确的是（）。 A: Aaccess-list 10 deny 192.168.160.0 255.255.240.0 B: Baccess-list 10 deny 192.168.160.0 0.0.191.255 C: Caccess-list 10 deny 192.168.160.0 0.0.31.255 D: Daccess-list 10 deny 192.168.0.0 0.0.31.255

18 A: Deny them access to any food. B: Keep doors and windows shut. C: Destroy their colonies close by. D: Refrain from eating sugary food.

Which GSS "source access list" is used to allow access to GSS by clients when GSS is being used as the DNS？（） A:  Client IP B:  Proxy IP C:  Client and proxy IP D:  Neither client nor proxy IP

以下哪一个命令可以将华为以太网接口改为access模式（ ）。 A: port link-type access B: port link-type trunk C: port mode access D: port access vlan 10

拒绝来自主机192.168.5.5 的数据包的语句为（ ）。 A: access-list deny 192.168.5.5 0.0.0.0 B: access-list deny host 192.168.5.5 C: access-list deny 192.168.5.5 D: access-list deny 192.168.5.5 255.255.255.255

在ACL配置中，用于指定拒绝某一主机的配置命令有（） A: deny 192.168.12.2 0.0.0.255 B: deny 192.168.12.2 0.0.0.0 C: deny host 192.168.12.2 D: deny any