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H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:

1. 交换机上的以太帧交换依靠 MAC 地址映射表,这个表可以通过 ______ 来建立。（多选)

A) 交换机之间相互交换目的地的位置信息
B) 交换机自行学习
C) 手工添加映射表项
D) 生成树协议交互学习

2. 某企业网络管理员需要设置一个子网掩码将其负责的 C 类网络 211.110.10.0 划分为最少 10 个子网,请问可以采用多少位的子网掩码进行划分 ? （多选)

A) 29
B) 26
C) 27
D) 28
E) 25

3. 客户的一台 MSR 路由通过广域网接口 S1/0 连接 Internet ,通过局域网接口 GE0/0 连接办公网络,目前办公网络用户可以正常访问 Internet 。
在路由器上增加如下的 ACL 配置:
firewall enable
firewall default deny
# acl number 3003
rule 0 deny icmp
rule 5 permit tcp destination-port eq 20
#
interface GigabitEthernet0/0
firewall packet-filter 3000 inbound
firewall packet-filter 3000 outbound
那么 ______ 。

A) 办公网用户发起的到达该路由器的 FTP 流量可以正常通过
B) 办公网用户发起的到达该路由器 GE0/0 的 Telnet 报文可以正常通过
C) 办公网用户发起的到 Internet 的 ICMP 报文被该路由器禁止通过
D) 办公网用户发起的到 Internet 的 FTP 流量被允许通过该路由器,其他所有报文都被禁止通过该路由器

4. 119.100.1100 1000
132.119.100.1100 1111 .... 广播地址
13.TFTP 采用的传输层知名端口号为 ______ 。

A) 68
B) 69
C) 67
D) 53

5. 在打开 debugging 调试以后,可以使用 ______ 命令关掉 debugging 。

A) undo terminal debugging
B) undo terminal monitor
C) no debugging all
D) undo debugging all

Solutions: