[单选题]在启用IGRP协议时，所需要的参数是：()

正确答案 ：C

自治系统号

[单选题]路由器上“水平分割”的功能是：()

正确答案 ：B

阻止路由环路

[多选题]You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)

正确答案 ：ABD

Congestion avoidance

Windowing

Buffering

[单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中，错误的是()。

正确答案 ：C

标准ACL可以根据分组中的IP目标地址进行过滤

[多选题]Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)

正确答案 ：BD

Half-duplex Ethernet uses a loopback circuit to detect collisions.

Full-duplex Ethernet makes use of two pairs of wires for data.

解析：解析：Explanation:

[单选题]路由器下，由一般用户模式进入特权用户模式的命令是：（）

正确答案 ：A

enable

[多选题]Regarding the extended ping command; which of the statements below are true?(Select all valid answer choices)

正确答案 ：BDE

The extended ping command is available from privileged EXEC mode.

With the extended ping command you can specify the timeout value.

With the extended ping command you can specify the datagram size.

解析：解析：Explanation:

[单选题]下列对访问控制列表的描述不正确的是（）。

正确答案 ：D

访问控制列表可以应用于路由更新的过程当中

[单选题]为了使配置私有IP的设备能够访问互联网，应采用的技术是()

正确答案 ：A

NAT

[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)

正确答案 ：CDE

92.11.178.93

134.178.18.56

192.168.16.87

解析：C,D,E 解析：Explanation:

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