【判断题】
在C/S结构中,一个服务器可同时为多个客户服务,并能控制存取共享资源
A. 对
B. 错
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
A
解析
暂无解析
相关试题
【判断题】
常用的非屏蔽双绞线根据其通信质量一般分为五类,其中局域网一般使用3类以上双绞线
A. 对
B. 错
【判断题】
TCP/IP模型的四层按照从低到高的顺序分别为:物理层、网际层、传输层和应用层
A. 对
B. 错
【判断题】
时分多路复用是以信道传输时间作为分割对象,通过多个信道分配互不重叠的时间片的方法来实现,因此时分多路复用更适用于数字信号的传输
A. 对
B. 错
【判断题】
数据是信息的载体,信息则是数据的内在含义或解释
A. 对
B. 错
【判断题】
防火墙系统是一种网络安全部件,它可能是硬件和软件的结合
A. 对
B. 错
【判断题】
当采用电路交换技术时,通信双方无需同时工作
A. 对
B. 错
【判断题】
光纤裸纤一般分为三层,其中包层的作用是降低光折射率,折射率差可以保证光主要限制在纤芯里进行传输
A. 对
B. 错
【判断题】
网络安全是网络系统中的硬件、软件及其系统中的数据受到保护,不受偶然的因素或恶意的攻击而遭到破坏、更改、泄露,系统能连续可靠正常运行,网络服务不中断
A. 对
B. 错
【判断题】
ATM技术是一种面向连接的交换技术,其信息交换单元的大小为53bit
A. 对
B. 错
【判断题】
异步传输模式(ATM)是一种面向连接的交换技术,它以信元为单位进行数据传输
A. 对
B. 错
【判断题】
物理层的主要功能是利用物理传输介质为数据链路层提供物理连接,以便透明地传送“比特”流
A. 对
B. 错
【判断题】
防火墙可以防止利用标准网络协议中的缺陷进行攻击
A. 对
B. 错
【判断题】
基带传输比频带传输更适合远距离传送
A. 对
B. 错
【判断题】
网络监视器是网络故障诊断软件工具
A. 对
B. 错
【判断题】
计算机网络的拓扑结构主要是指资源子网的拓扑结构
A. 对
B. 错
【判断题】
计算机病毒是编制者在计算机程序中插入的破坏计算机功能或者数据,能影响计算机使用,能自我复制的一组计算机指令或者程序代码
A. 对
B. 错
【判断题】
因特网是世界上最大的网络,它是典型的广域网
A. 对
B. 错
【判断题】
网络层的信息传输单位是“数据报”
A. 对
B. 错
【判断题】
资源子网提供访问网络和处理数据的能力,由主机系统、终端控制器和终端组成
A. 对
B. 错
【判断题】
在数字通信中,传输介质是两个通信设备之间实现的物理连接部分,它能将信号从一方传输到另一方
A. 对
B. 错
【判断题】
满足T568线的双绞线由4对导线组成
A. 对
B. 错
【判断题】
TCP提供的可靠性是利用一种称为“重传肯定确认”的机制来实现的
A. 对
B. 错
【判断题】
数字电压表是网络故障诊断软件工具
A. 对
B. 错
【判断题】
防火墙不能防止利用服务器系统漏洞所进行的攻击
A. 对
B. 错
【判断题】
从逻辑功能上看,计算机网络是由一些网络节点和连接这些节点的通信链路组成的
A. 对
B. 错
【判断题】
如果ping不通默认网关,说明IP地址信息中有关默认网关的设置是错误的
A. 对
B. 错
【判断题】
Internet其实就是一台提供特定服务的计算机
A. 对
B. 错
【判断题】
同轴电缆只能传送数字信号,模拟信号要用光纤才可以传输
A. 对
B. 错
【判断题】
对等网络中的计算机只能作为客户机
A. 对
B. 错
【判断题】
MODEM是对传输信号进行A/D和D/A转换的,是在模拟信道中传输数字信号时不可缺少的设备
A. 对
B. 错
【判断题】
网络层的协议ARP实现物理地址转换为IP地址的功能
A. 对
B. 错
【判断题】
使用自己的电脑上互联网,肯定不会泄露私人信息
A. 对
B. 错
【判断题】
光缆的光束是在玻璃纤维内传输的
A. 对
B. 错
【判断题】
接入网不可以在同一个网络中同时实现语音、数据和图像三种业务
A. 对
B. 错
【判断题】
若一线路传输信号的频率范围为750~2500Hz,则线路带宽为2500Hz
A. 对
B. 错
【判断题】
计算机网络的三个主要组成部分是若干主机、一个通信子网、一组通信协议
A. 对
B. 错
【判断题】
分组交换的分组长度是不受限制的
A. 对
B. 错
【判断题】
中国最早提出信息高速公路的概念
A. 对
B. 错
【判断题】
保密性是指信息不泄露给非授权用户、实体或过程,或供其利用的特性
A. 对
B. 错
【判断题】
密码破解也是黑客常用的攻击手段之一
A. 对
B. 错
推荐试题
【单选题】
— Excuse me, could you show me the way to the nearest post office?___ Oh yes! Two blocks away from here at the Green Avenue. You can’t miss it.
A. I beg your pardon?
B. What do you mean?
C. You’re welcome.
D. Um, let me think.
【单选题】
— Wow! This is a marvelous room! I’ve never known you’re so artistic.____
A. Great, I am very art-conscious.
B. Don’t mention it.
C. Thanks for your compliments.
D. It's fine.
【单选题】
— Is it possible for you to work late tonight?___
A. I like it.
B. I'll do that.
C. I'd love to. .
D. I think so.
【单选题】
— Unbelievable! I have failed the driving test again!___ This is not the end of the world.
A. Good luck.
B.
C. heer up. C. Go ahead.
D. No problem.
【单选题】
Are you feeling better today, Jack?___
A. There must be something wrong.
B. Just have a good rest.
C. Yes, thank you, doctor. But I still don't feel good.
D. Don’t worry about me.
【单选题】
Thank you so much for your lovely gift.___
A. Never mind.
B. I'm glad you like it.
C. Please don't say so.
D. No, It's not so good.
【单选题】
Would you like something to drink? What about a cup of tea?___
A. No, thanks.
B. No, I wouldn’t
C. Yes, I want.
D. Yes, I like.
【单选题】
What's the problem with your bike?___
A. Not at all.
B. Good, thank you.
C. Nothing serious.
D. Sure.
【单选题】
Good morning, John. How are you doing?___
A. I'm pleased
B. Good night.
C. Not so bad. And you?
D. How do you do?
【单选题】
How do you do?___
A. Fine, thank you.
B. How do you do?
C. Not too bad.
D. Very well.
【单选题】
Good-bye for now.___
A. The same to you.
B. That's OK
C. See you.
D. Long time no see.
【单选题】
Hello, how are you?___
A. Hello, how are you?
B. How do you do?
C. Fine, thank you.
D. That's OK.
【单选题】
I didn't mean to do that. Please forgive me。___
A. Not too bad.
B. That's all right
C. It's a pleasure.
D. Thank you.
【单选题】
Thank you for your invitation.___
A. It doesn’t matter.
B. It's a pleasure.
C. It's a small thing.
D. I'll appreciate it.
【单选题】
What a beautiful dress you have on today!___
A. It is suitable for me.
B. No, it isn’t.
C. You want to have one, too?
D. Thank you.
【单选题】
I think he is a good lecturer.___
A. Sorry, it doesn’t matter.
B. So do I.
C. Yes. It's a good idea
D. I don't mind
【单选题】
— What's the matter, dear?___
A. I didn't go to school.
B. I have a terrible headache.
C. I took the kids shopping today.
D. It is a beautiful dress.
【单选题】
Good morning, may I speak to Mark, please?___
A. Who's there?
B. Who's that speaking?
C. Who are you?
D. Who wants to speak to Mark?
【单选题】
Let me introduce myself. I'm Steward.___
A. What a pleasure.
B. Pleased to meet you.
C. I don't know.
D. Thanks a lot.
【单选题】
Let's go to the library this afternoon.___.
A. Yes, that's right.
B. No. I can't.
C. What about you?
D. That's a good idea.
【单选题】
What does Tom's wife do for a living?___.
A. She is a doctor.
B. Tom loves his wife.
C. She has a happy life.
D. She lives far from here.
【单选题】
How tall is your sister?___
A. She is not very well.
B. She is 28 years old.
C. She is very nice.
D. She is as tall as I am.
【单选题】
What do you think of this novel?___
A. I've read it.
B. It's well-written.
C. It was written by my uncle.
D. I bought it yesterday.
【单选题】
How much is this necklace?___
A. It's very nice.
B. It's a birthday present from my parents.
C. It costs fifty pounds.
D. It's a bargain.
【单选题】
How can I get to the cinema?___
A. It's very far.
B. Yes, there is a cinema near here.
C. It's well known.
D. Go down this street and turn left.
【单选题】
What's the matter, John?___
A. I failed my French test
B. It doesn't matter.
C. Nothing's wrong with him.
D. I don't think I can.
【单选题】
What are you majoring in?___
A. In a university.
B. Very hard.
C. Mathematics.
D. At nine in the morning.
【单选题】
Are you going on holiday for a long time?___
A. It was a long time.
B. Two weeks ago.
C. No. Only a couple of days.
D. Not long time ago.
【单选题】
Is Mary there?___
A. Speaking.
B. I'm not Mary.
C. Who are you?
D. Mary is well today.
【单选题】
What day is today?___
A. It's March 6.
B. It's a fine day today.
C. It's March.
D. It's Monday.
【单选题】
Is that seat taken?___
A. Please don't worry.
B. I don't think so.
C. Why not?
D. It's very nice.
【单选题】
Thank you for calling.___
A. Don’t mention it.
B. That's fine.
C. Nice talking to you.
D. Call back again.
【单选题】
How are you getting on today?___
A. Very well.
B. How do you do?
C. I'm a doctor.
D. Nice to have known you.
【单选题】
How's your family?___
A. Thanks all the same.
B. Thanks for calling.
C. Not too bad.
D. Don't mention it.
【单选题】
- How is it that you are late for class again?___
A. Because I missed the bus
B. By bus and then on foot
C. Yes, it is quite wrong
D. It is far from school
【单选题】
- Excuse me. Could you spare me a few minutes? - ___
A. Of course.
B. Of course not.
C. I am sorry to hear that.D.Yes. I'm busy now.
【单选题】
- It's very thoughtful of you to give me a ride. ___
A. It's my pleasure.
B. Take it easy.
C. Sure.
D. Never mind.
【单选题】
- This is heavy! What's in it? ___
A. I think you don't like it.
B. My new computer. I just bought it.
C. I'm glad you're here.
D. Are you really interested in it?
【单选题】
___ I'd like to place an order please.
A. Can I help you?
B. I can help you.
C. What are you doing?
D. Why are you doing?
【单选题】
- Do you know the girl over there?___
A. How can I know?
B. Yes, I remember it now.
C. It's Sam, my teacher's daughter.
D. She is a good girl.