【单选题】
66运行STP协议的交换机，端口在任何状态下都可以直接转化为Disabled状态。 ___
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【单选题】
缺省情况下，交换机的桥优先级取值是32768。___
【单选题】
如下图所示，下列交换机的哪个端口会处于阻塞状态？___。
A. SWC的G0/0/2
B. SWC的G0/0/1
C. SWB的G0/0/3
D. SWA的G0/0/3
【单选题】
如下图所示，所有主机之间都可以正常通行，则SWBMAC地址和端口的对应关系正确的是？___
A. MAC-A G0/0/3 MAC-B G0/0/3 MAC-C G0/0/1
B. MAC-A G0/0/1 MAC-B G0/0/2 MAC-C G0/0/3
C. MAC-A G0/0/2 MAC-B G0/0/2 MAC-C G0/0/3
D. MAC-A G0/0/1 MAC-B G0/0/1 MAC-C G0/0/3
【单选题】
运行STP协议的交换机，只有在本交换机某个端口出现故障时才会发送TCN BPDU。 ___
【单选题】
生成树协议中端口ID总长度是多少bit？___
【单选题】
如图所示，关于此网络拓扑图描述正确的是（）。___
A. 此网络中有6个冲突域
B. 此网络中有6个广播域
C. 此网络中有12个冲突域
D. 此网络中有2个广播域
【单选题】
下列关于RSTP协议中Backup端口说法正确的是？（单选）___
A. Backup端口作为指定端口的备份，提供了另一条从根桥到相应网段的备份通路
B. Backup端口既转发用户流量又学习MAC地址
C. Backup端口不发用户流量但是学习MAC地址
D. Backup端口提供了从指定桥到根的另一条可切换路径，作为根端口的备份端口
【单选题】
交换机组成的网络不开启STP，一定出现二层环路。___
【单选题】
当运行标准STP协议的交换机某个端口收到次优的BPDU时，立刻从此端口发送自己的配置BPDU。___
【单选题】
如下图所示的网络，所有路由器运行OSPF协议，链路上方为Cost值的大小，则RA到达网络10.0.0.0/8的路 径为？___
A. A-B-D
B. RA无法到达10.0.0.0/8
C. A-D
D. A-C-D
【单选题】
79如Ro下ute图r B所，示则的在R网ou络te，rA管输入理哪员条希命望令 R可o以u实ter现A此使需用求？静态（路单由选的） 方式，指定优先通过G0/0/1端口发送数据包给 ___
A. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40
B. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70
C. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2
D. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70 ip route-static 10.0.2.2
【单选题】
关于此命令描述正确的是___。
A. 该路由的优先级为100
B. 此命令配置了一条到达192.168.1.1网络的路由
C. 此命令配置了一条到达10.0.12.0网络的路由
D. 如果路由器通过其他协议学习到和此路由相同目的网络的路由，路由器将会优先选择此路由
【单选题】
网络结构和OSPF分区如图所示，图中除了R1之外，路由器R2、R3和R4都是OSPF的ABR路由器。___
【单选题】
OSPF协议封装在以下哪种数据包内？___
A. IP
B. HTTP
C. UDP
D. TCP
【单选题】
在广播型的接口上配置静态路由时，可以通过指定下一跳地址或出接口来配置静态路由。___
【单选题】
下列哪个属性不能作为衡量Cost的参数？（单选）___
A. 时延
B. sysname
C. 跳数
D. 带宽
【单选题】
OSPF协议的HELLO报文中不包含以下哪个字段？（单选） ___
A. Neighbor
B. sysname
C. Hello Interval
D. Network Mask
【单选题】
某公司网络管理员希望能够远程管理分支机构的网络设备，则下面哪个协议会被用到？（已确认）___
A. VLSM
B. Telnet
C. RSTP
D. CIDR
【单选题】
管理员在Router上进行了如上配置，那么连接在该路由器的G1/0/0接口下的一台主机，能够通过DHCP获取 到什么样的IP地址。___
A. 该主机获取的IP地址属于10.10.10.0/24网络
B. 该主机获取不到IP地址
C. 该主机获取的IP地址属于10.20.20.0/24网络
D. 该主机获取的IP地址可能属于10.10.10.0/24网络，也可能属于10.20.20.0/24网络
【单选题】
Access端口发送数据帧时如何处理？___
A. 替换VLAN TAG转发
B. 剥离TAG转发
C. 打上PVID转发
D. 发送带TAG的报文
【单选题】
交换机某个端口配置信息如下，则此端口在发送携带哪些VLAN的数据帧时剥离VLAN TAG？___
A. 4,5,6
B. 4,6
C. 1,4,6
D. 1,4,5,6
【单选题】
交换机某个端口配置信息如下，则此端口发送携带哪个VLAN TAG的数据帧时，剥离VLAN TAG？___
【单选题】
交换机的端口在发送携带VLAN TAG和PVID一致的数据帧时，一定剥离VLAN TAG转发。___
【单选题】
99如下图所示的网络，路由器A使用手工模式的链路聚合，并且把G0/0/1和G0/0/2端口均加入聚合组1，关于 RouterA聚合端口1的状态说法错误的是？___
A. 只关闭Router B的G0/0/2端口，Eth-Trunk 1 protocol up
B. 同时关闭Router B的G0/0/1和G0/0/2端口，Eth-Trunk 1 protocol up
C. 只关闭RouterB的G0/0/1端口，Eth-Trunk 1protocol up
D. 同时关闭Router B的G0/0/1和G0/0/2端口，Eth-Trunk 1 protocol down
【单选题】
NAT在使用动态地址池时，地址池中的地址可以重复使用，即同一IP同时映射给多个内网IP。（已确认）___
【单选题】
以太网数据帧的Length/Type字段取以下哪个值时，表示承载的是PPPoE发现阶段的报文？（单选）___
A. 0x0800
B. 0x8863
C. 0x8864
D. 0x0806
【单选题】
关于PPP配置和部署，下面说法正确的是（）。（单选）___
A. PPP不支持双向认证
B. PPP不可以修改keepalive时间
C. PPP不能用于下发IP地址
D. PPP支持CHAP和PAP两种认证方式
【单选题】
在华为设备上，如果使用AAA认证进行授权，当远程服务器无响应时，可以从网络设备侧进行授权。___
【单选题】
管理信息库MIB（Management Information Base）是一个虚拟的数据库，这个数据库保存在NMS上。___
【单选题】
如下图所示，IPSec隧道模式中AH协议认证的范围是？___
【单选题】
AR G3系列路由器上的ACL支持两种匹配顺序：配置顺序和自动排序。___
【单选题】
被请求节点组播地址由前缀FF02::1:FF00:0/104和单播地址的最后24位组成。___
【单选题】
缺省情况下，P2P链路上OSPFv3 HELLO报文的周期为多少秒？___
【单选题】
组播地址FF02::2表示链路本地范围的所有路由器。___
【单选题】
IPv6报文的基本首部长度是固定值。___
【单选题】
IPv6地址2001:ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58不能简写。___
【单选题】
SRGB（segment routing global block）：为全局segment预留的本地标签集合。在MPLS和IPv6中，SRGB均为全局标签预留的本地标签集合。___
【单选题】
网络管理员希望能够有效利用192.168.176.0/25网段的IP地址。现公司市场部门有20个主机，则最好分配下 面哪个地址段给市场部？___
A. 192.168.176.160/27
B. 192.168.176.96/27
C. 192.168.176.0/25
D. 192.168.176.48/29
【单选题】
在VRP平台上使用ping命令时，如果需要指定一个IP地址作为回显请求报文的源地址，那么应该使用下面哪 ___
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
