2022思科认证模拟练习题276

1. [单选题]扩展ACL和标准ACL的区别（）。

A. 标准的ACL在禁止和允许方面比扩展的ACL更高的精度
B. 扩展的ACL核查数据包的源地址^{(source address)}和目标地址和端口号
C. 他们都可以查端口号
D. 他们都可以查特殊协议和其他参数

2. [单选题]OSI第二层^{(the second layer)}数据封装完成后的名称是：()

A. 比特
B. 包
C. 帧
D. 段

3. [单选题]关于帧中继的说法，正确的是（）

A. 速率最大为1Mbit/s
B. 不提供差错校验功能
C. 可以偷占带宽
D. 数据传输质量高于DDN

4. [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

5. [单选题]下列对RIP的配置中，合法的命令是（）

A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0

6. [单选题]下面有关交换机的描述中，正确的是（）

A. 所有交换机都支持VLAN功能
B. 交换机端口数量最多为48口
C. 交换机独占带宽
D. 交换机端口的最大速率为100Mbit/s

7. [单选题]两台路由器直连到一起，应该使用的线缆为（）

A. 交叉线缆
B. 直通线缆
C. 反转线缆
D. 任意线缆

8. [单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?

A. Start a new session using UDP
B. Obtain a new IP address from the DHCP server
C. Use a different source port for the session
D. Decrease the sequence number
E. Decrease the window size

9. [单选题]Ezonexam has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?

A. VTP will allow physically redundant links while preventing switching loops
B. VTP will allow switches to share VLAN configuration information
C. VTP will allow a single port to carry information to more than one VLAN
D. VTP will allow for routing between VLANs
E. None of the above

10. [单选题]The Ezonexam network administrator has issued the "VTP password ezonexam" command on a Cisco device. What is the purpose of this command?

A. It allows two VTP servers to exists in the same domain, each configured with different passwords
B. It is the password required when promoting a switch from VTP client mode to VTP server mode
C. It is used to access the VTP server to make changes to the VTP configuration
D. It is used to validate the sources of VTP advertisements sent between switches
E. None of the above

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