2022思科认证模拟考试系统310

1. [单选题]NAT可以被用于完成多种功能，以下不属于其功能的是：（）

A. 转换内部局部地址
B. 内部全局地址复用
C. TCP负载均衡
D. 内部网络流量控制^{(network traffic control)}

2. [单选题]关于静态NAT，下面（）说法是正确的。

A. 静态NAT转换在缺省情况下24小时后超时
B. 静态NAT转换从地址池中分配
C. 静态NAT将内部地址一对一静态映射到内部全局地址
D. CISCO路由器缺省使用了静态NAT

3. [单选题]TCP23是（）协议端口号；UDP69是（）端口号；TCP80是（）端口号。

A. TELNET FTP HTTP
B. FTPT FTP HTTP
C. TELNET TFTP HTTP
D. TELNET DNS HTTP

4. [单选题]交换机工作在OSI七层模型的哪一层()

A. 物理层
B. 数据链路层^{(data link layer)}
C. 网络层
D. 传输层

5. [单选题]RIP路由协议认为“网络不可到达”的跳数是：()

A. 8
B. 16
C. 24
D. 100

6. [单选题]默认情况下，RIP定期发送路由更新的时间是（）

A. 15S
B. 30S
C. 60S
D. 90S

7. [多选题]Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)

A. 16.23.118.63
B. 87.45.16.159
C. 92.11.178.93
D. 134.178.18.56
E. 192.168.16.87
F. F. 217.168.166.192

8. [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

9. [多选题]Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)

A. Each device on the Ethernet segment stops transmitting for a short time.
B. A jam signal informs all devices that a collision occurred.
C. When data transmission resumes, the devices that were involved in the collision have priority to transmit.
D. The devices that are involved in the collision stops transmitting for a short time.
E. The collision invokes a random back-off algorithm.

查看答案&解析查看所有试题

本文链接：https://www.51ksbd.net/show/z08855.html