2022思科认证模拟考试库157

1. [单选题]某网络中，拟设计10子网，每个子网中放有14台设备，用IP地址段为199.41.10.X，请问符合此种规划的子网掩码是()

A. 255.255.255.0
B. 255.255.240.0
C. 255.255.255.240
D. 255.248.0.0

2. [单选题]You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?

A. 225.225.224.0.
B. 225.225.240.0.
C. 225.225.255.0.
D. 255.255.255.224
E. 225.225.255.240

3. [单选题]如果把路由器的某个端口的IP配置为：192.168.10.64，掩码配置为：255.255.255.248，则该端口（）

A. 能和其他设备正常通信
B. 会变成“administratively down”状态
C. 端口被烧毁
D. 出现错误提示，配置命令执行失败

4. [单选题]A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?

A. All defined VLANs are allowed on the trunk by default.
B. Each VLAN, or VLAN range, that is specified with the switchport mode command.
C. Each VLAN, or VLAN range, that is specified with the vtp domain command.
D. Each VLAN, or VLAN range, that is specified with the vlan database command.
E. None of the above

5. [多选题]属于私有IP段的是()

A. 10.0.0.0-10.255.255.255
B. 172.16.0.0-172.31.255.255
C. 202.110.100.0-202.110.100.255
D. 192.168.0.0-192.168.255.255
E. 126.0.0.0-126.255.255.255

6. [单选题]为了连接“帧中继^{(frame relay)}”线路，网络中的路由器需要提供的端口类型为（）

A. FastEthernet
B. Serial
C. BRI
D. Ethernet

7. [单选题]网关的功能（）

A. 过滤数据包
B. 不同网段通信
C. 校验数据帧
D. 把数据封装成“段”

8. [多选题]Which of the following steps are necessary in order to add a new VLAN to the Ezonexam switched network? (Select all that apply)

A. Create the VLAN.
B. Name the VLAN.
C. Configure an IP address for the VLAN.
D. Add the desired ports to the new VLAN.
E. Add the VLAN to the VTP domain.

9. [单选题]为了查看路由器的E0端口上，是否挂接了访问权限表，应该使用的命令是（）

A. show access-list
B. show interface e0
C. show ipinterface e0
D. show e0

10. [多选题]You are bringing up a new Ezonexam switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method. When setting the encapsulation type on the trunk, what should you configure on the Cisco switch?

A. Switch(config) switchport trunk encapsulation isl
B. Switch(config) switchport trunk encapsulation ietf
C. Switch(config-if) switchport trunk encapsulation isl
D. Switch(config-if) switchport trunk encapsulation ietf
E. Switch(config-if) switchport trunk encapsulation dot1q

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