学校计算机房采用星型结构组建,若所有学生同时不能上网,可能原因是( )。
2020学年极客争霸赛-第三回合

Quiz
•
Computers
•
10th Grade
•
Medium

Zoey Zhu
Used 14+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
机房的网络连接设备(如交换机)故障
学生计算机的浏览器发生故障
学生计算机的网线发生故障
学生计算机里网络协议出现故障
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列传输介质中,目前抗干扰能力最强的是( )。
粗同轴电缆
双绞钱
细同轴电缆
光纤
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
因特网上的每台计算都有自己唯一的标识,这个标识就是( )。
域名
IP地址
用户名
计算机名
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
DNS的主要功能是( )。
将MAC地址翻译成IP地址
域名和IP地址的相互转换
搜索网络服务器
将域名转换为IP地址
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
调制解调器的功能是实现( )。
数字信号的传输
模拟信号的传输
数字信号与模拟信号的相互转换
数字信号的校正
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
关于ADSL,下列说法错误的是( ) 。
ADSL不需要对原有的电话线路进行改造
ADSL不需要向ISP提出申请
ADSL可实现“打电话与上网两不误”
ADSL又叫非对称用户数字线路
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般的某个中小学校的校园网络属于( )。
城域网
局域网
广域网
Internet
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