【多选题】
下面有关Qos中 Integrated Service与 RSVDPd的说法,不正确的是___
A. Integrate Service其实也就是RSVP
B. Integrate Service采用RSVP作为它的信令机制
C. RSVP是一个多用途的协议,除了 Integrate Service之外,RSVP还可用于其他领域
D. Integrate Service适合于在骨干网上大量应用
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相关试题
【多选题】
传统网络无法保证通信质量的原因有___
A. 无区别地对待所有报文
B. 依照报文到达时间的先后顺序分配转发所需要的资源
C. 无法保证关键业务的通信质量
D. 网络设备处理报文采用的策略是先入先出FTFO
【多选题】
流量监管与流量整形的区别是___
A. 流量整形对报文着色
B. 流量监管引入时延和抖动,需要较多的缓冲资源缓存报文
C. 流量整形引入时延和抖动,需要较多的缓冲资源缓存报文
D. 流量监管对报文着色
【多选题】
关于VRRP快速切换的描述错误的是___
A. 使用ⅤRRP监视 BFD session或者EFM功能,在 BFD session或者是EFM会话状态改变后通知VRRP模块,实现VRRP快速切换
B. 一个VRRP备份组不能同时监视 peer BFD, link BFD和 nonmal BFD
C. VRRP备份组监视普通BFD时,当BFD状态变化时,通过修改备份组优先级改变主备状态,被监视的BFD会话状态恢复时,路由器在备份组中的优先级将恢复原来的值
D. 同时配置监视多个BFD的情况下,各个配置互相关联,可能会有影响
【多选题】
在DHCP协议运行过程中,哪些情况会用DHCP REQUEST报文?___
A. 客户端初始化后,发送广播的DHCP REQUEST报文来回应服务器的DHCP OFFER报文。
B. 当客户端发现服务器分配给它的IP地址发生冲突时会通过发送此报文来通知服务器,并且会重新向服务器申请地址。
C. 当客户端已经和某个IP地址绑定后,发送
D. HCP REQUEST报文来更新地址的租约
【多选题】
访客接入有哪些特征?___
A. 访客和员工的访问权限相同
B. 访客自带设备接入网络
C. 访客言论、行为不受控
D. 访客访间企业网络范围不受控
【多选题】
关于VRRP的负载分担描述,正确的是:___
A. 在路由器的一个接口上可以创建多个虚拟路由器,使得该路由器可以在一个虚拟路由器中作为 Master路由器,同时在其他的虚拟路由器中作为Backup路由器
B. 负载分担方式是指多台路由器同时承担业务,因此负载分担方式需要两个或者两个以上的虚拟路由器。
C. 负载分担方式是指建立两个或更多备份组,多台路由器同时承载业务
D. 在配置优先级时,三个虚拟路由器的ⅤRRP master可以在不同路由器上
【多选题】
关于VRRP快速切换的描述,错误的是:___
A. 一个VRRP备份组不能同时监视Peer BFD、Link BFD和 Normal BFD
B. VRRP备份组监视普通BFD时,当BFD状态变化时,会通过修改备份组优先级改变主备状态,当被监视的BFD会话状态恢复时,路由器在备份组中的优先级就会恢复成原来的值。
C. 使用VRRP监视BFD session或者EFM功能,在 BFD session或者EFM会话状态改变后会通知ⅤRRP模块,实现VRRP快速切换
D. 若同时配置监视多个BFD,那么各个配置问相互关联,并可能会有影响
【判断题】
IP报文中用Tos字段进行QOS标记，Tos字段中是使用前6bit来标记DSCP的
【判断题】
传统的丢包策略采用尾部丢弃(Tail-Drop)的方法，这种丢弃方法会导致TCP全局同步现场
【判断题】
流镜像分为本地流镜像和远程流镜两种方式
【判断题】
MPLS， 又称为多协议标签交换技术，可以说MPLS技术的核心是标签交换
【判断题】
VRRP的IP地址和虚拟IP地址可以相同
【判断题】
lntServ模型，在应用程序发送报文前，需要向网络申请预留资源
【判断题】
NAT技术可以通过对数据加密来实现数据安全传输
【判断题】
单包攻击指攻击者控制僵尸主机，向目标网络发送大量的攻击报文，造成被攻击网络链路拥塞，系统资源耗尽
【判断题】
同一安全区域的主机和服务器之间互访时，不需要使用NAT进行地址转换
【判断题】
快速检测技术可以尽早地检测到与相邻设备间的通信故障，以便系统能够及时采取措施，保证业务不中断
【判断题】
47复杂流分类是指根据五元组<源目的地址.源／目的端口号.协议类型>等信息对报文进行分类，通常应用在网络的核心位置
【判断题】
当两台优先级相同的设备同时竞争Master角色时，则IP地址较小的接口所在的设备应当被选为Mater设备
【判断题】
在防火墙上Ping防火墙某接口PI地址时，这些报文将交给防火墙内部模块进行处理，并不被转发出去
【判断题】
65VPN模型主要分为两种，一种是Overlay VPN，别一种是Peer-to-Peer VPN
【判断题】
67如果防火墙的两个接口被划分到同一区域，那么两目的端门暗的数据包流动也必须经过域间包过滤处理过程
【判断题】
eSight单服务器模式，最多只允许一个用户登录，当其他用户登录时，会提示已有用户登录
【判断题】
抖动是由于属于同一个流的数据包的端到端时延不相等造成的
【判断题】
SDN控制器可以根据网络状态智能调整流量路径，以达到提升整网吞吐的目的
【判断题】
BFD机制使用TCP建立连接，其目的端口号为3784
【判断题】
VXLAN用户可通过VXLAN接口访问Internet
【判断题】
使用eSight初始添加设备后，拓扑元素的排列都是随机的，不能体现出实际的网络结构，所以还需要根据实际的网络组网进行位置调整或选择拓扑提供的自动布局功能
【判断题】
118当虚拟路由器回应ARP请求时，使用主路由器的真实MAC地址
【判断题】
ASPF技术使得防火墙能够支持如FTP等多通道协议，同时还可以对复杂的应用制定相应的安全策略
【判断题】
流量分类是按照一定的规则来识别符合某类特征的报文，而且特征不同的报文可以享受到不同的服务。帮由于分类规则按照参考信息的不同，流量分类可以分为简单流分类和复杂流分类
【判断题】
140通常在配置QoS中的Diff-Serv时，边界路由器会通过报文的源地址和目的地址等对报文进行分类，对不开的报文设置不同的IP优先级，而其他路由器只需要根据IP优先来对报文进行识别即可
【判断题】
VXLAN技术就是为了建立一个跨DC的二层网络
【判断题】
PQ的分类机制支持使用标准或扩展的IP访问列表
【判断题】
防火墙和路由器都能够实现安全防范的功能，所以它们可以互相替换使用
【判断题】
DU标签分发方式下，如果采用Liberal保持方式，则设备都会保留所有LDP Peer发来的标签，无论该LDP Peer是否为到达目的网段的下一跳
【判断题】
NFV和SDN是高度互补、相互依赖的关系，所以必须结合使用
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
【单选题】
( ) 27. What does the prince do after the fox tells him a secret?
A．He cares more about a flower and a sheep．
B．He meets many more strange adults on other planets．
C．He realizes his love for the rose and he goes back to his planet．
D．He discovers interesting things such as a snake, other roses and a fox
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________．
A．the adult world B．the planet B -612
C．a rose and a fox D．the adventure of a young prince
【单选题】
( ) 29. What is the writer's main purpose（目的）in writing this passage？
A．To tell the readers his life story．
B．To tell people what kind of person his father was．
C．To tell the readers what present he got from his father．
D． To let people know how poor he was．
【单选题】
( ) 30. Why did the father not ask his son not to do this and do that？
A．Because he felt quite confident of his son．
B．Because he was born from a poor family．
C．Because he was a man of few words．
D．Because he didn't want to be much too strict with his son．
【单选题】
( ) 31. What would someone learn from this passage？
A．How to live by oneself． B．How to stand on one's own feet．
C．What a good father should do． D．What the self-important is like．
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage？
A．闲暇时光 B．学费 C．精神空虚 D．经济不足
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
