【单选题】
QUESTION 507 如果ACL规则中最大的编号为12，缺省情况下，用户配置新规则时未指定编号，则系统为新规则分配的编 号为？___
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相关试题
【单选题】
QUESTION 508 如果两个IPSec VPN对等体希望同时使用AH和ESP来保证安全通信，则两个对等体总共需要构建多少个SA（安全联盟）？___
【单选题】
QUESTION 509 DHCPv6属于一种有状态地址自动配置协议。 ___
【单选题】
QUESTION 510 DHCPv6服务器在RA报文中包含管理地址配置标记（M），如果取值为1，则下列说法正确的是？___
A. 表示客户端启用DHCPv6有状态地址配置
B. 表示客户端需要通过无状态的DHCPv6来获取其它网络配置参数
C. 表示客户端启用IPv6无状态地址自动分配方案
D. 表示客户端需要通过有状态的DHCPv6来获取其它网络配置参数
【单选题】
QUESTION 511在OSI参考模型中，能够完成端到端差错检测和流量控制的是（）。___
A. 传输层
B. 网络层
C. 数据链路层
D. 物理层
【单选题】
QUESTION 512应用数据经过数据链路层处理后称为？___
A. Segment
B. PDU
C. Frame
D. Packet
【单选题】
QUESTION 513 <Huawei>system-view [Hawei]user-interface console 0 [Huawei-ui-console0]history-command max-size 20 关于上面的配置，说法正确的是（）___
A. history-command max-size 20是希望调整历史命令缓存的大小为20条
B. 历史命令缓存的默认大小是5条
C. 历史命令缓存的默认大小是5字节
D. 上述配置完成后，历史命令缓存可以保存20个字节的命令
【单选题】
QUESTION 514 STP协议中BPDU报文的目的MAC地址为？___
A. 01-80-C2-04-05-06
B. FF-FF-FF-FF-FF-FF
C. 00-80-C2-00-00-00
D. 01-80-C2-00-00-00
【单选题】
QUESTION 515如图所示，交换机使用默认参数运行STP，则下面哪个端口将会被选举为指定端口？___
A. 交换机A的G0/0/1端口
B. 交换机A的G0/0/2端口
C. HUB的E0/0/2端口
D. HUB的E0/0/1端口
【单选题】
QUESTION 516路由器在查找路由表时存在最长匹配原则，这里的长度指的是以下哪个参数？___
A. NextHopIP地址的大小
B. 路由协议的优先级
C. Cost
D. 掩码的长度
【单选题】
QUESTION 517OSPF协议用哪种报文来描述自己的LSDB？___
【单选题】
QUESTION 519 如下图所示的网络，两台交换机之间通过四条链路相连，COPPER指电接口，FIBR指光接口，则以下哪两 个接口可以实现链路聚合？___
A. G0/0/3和FE0/0/3
B. G0/0/3和G0/0/2
C. G0/0/2和FE0/0/3
D. G0/0/2和G0/0/1
【单选题】
QUESTION 520 某公司网络管理员想要把经常变换办公位置而导致经常会从不同的交换机接入公司网络的用户统一划分到 VLAN10，则应该采用下列哪种方式来划分VLAN？___
A. 基于协议划分VLAN
B. 基于MAC地址划分VLAN
C. 基于端口划分VLAN
D. 基于子网划分VLAN
【单选题】
正确的是（）。___
A. 将使用“authentication-scheme au1”认证，如果“au1”被删除，将使用“au2”认证
B. 将使用“authentication-scheme au2”认证，如果“au2”被删除，将使用“au1”认证
C. 将使用“authentication-scheme au2”认证
D. 将使用“authentication-scheme au1”认证
【单选题】
QUESTION 523 华为ARG3系列路由器默认使能SNMP的所有版本（SNMPv1、SNMPv2c和SNMPv3）。___
【单选题】
QUESTION 526如果EUI-64地址78BC-FEFF-FFFE-EFAB是根据MAC地址计算得到，则其所对应的MAC地址应该为？___
A. 7ABC-FEFE-EFAB
B. 78BC-FFFE-EFAB
C. 7ABC-FFFE-EFAB
D. 78BC-FEFE-EFAB
【单选题】
QUESTION 527 DHCPv6客户端必须从DHCPv6服务器同时获取IPv6地址和其它配置信息。___
【单选题】
QUESTION 528网络设备发送的IPv6报文时，会首先将报文长度和NTU值进行对比，如果大于MTU值，则直接丢弃。___
【单选题】
QUESTION 531 MPLS标签头封装在报文的数据链路层头部和网络层头部之间。___
【单选题】
QUESTION 532 在使用Tracert程序测试到达目标节点所经过的路径时，默认对每个TTL值Traceroute都要测（）次。___
【单选题】
QUESTION 533 下面关于免费ARP报文的作用描述错误的是（）。___
A. 在VRRP备份组中用来通告主备发生变换
B. 用于通告一个新的现AC地址：发送方更换网卡，AC地址发生改变，为了能够在AP表项老化前通告所有 主机，发送方可以发送一个免费ARP
C. 用于检查重复的IP地址：正常情况下不会收到ARP回应，如果收到，则表明本网络中存在与自身P地址 重复的地址
D. 免费ARP报文用来在主机空闲时与网关设备保持激活
【单选题】
QUESTION 534 关于ARP报文的说法错误的是？___
A. ARP应答报文是单播方发送的
B. 任何网络设备都需要通过发送ARP报文获取数据链路层标识
C. ARP请求报文是广播发送的
D. ARP报文不能穿越路由器，不能被转发到其他广播域
【单选题】
QUESTION 535 VRP操作平台中使用命令mkdir test，系统会创建一个名字为test的文件夹。___
【单选题】
QUESTION 536交换机收到一个单播数据帧，会在MAC地表中查找目的MAC地址，下列说法错误的是？___
A. 如果查到了这个MAC地址，并且这个MAC地址在MAC地址表中对应的端口不是这个做进入交换机的那 个端口，则交换机执行转发操作
B. 如果查到了这个MAC地址，并且这个MAC地址在这个MAC地址表中对应的端口是这个帧进入交换机的 那个端口，则交换机执行丢弃操作
C. 如果查不到这个MAC地址，则交换机执行泛洪操作
D. 如果查不到这个MAC地址，则交换机执行丢弃操作
【单选题】
在广播网络上，DR和BDR都使用组播地址224.0.0.6来接收链路状态更新报文。___
【单选题】
QUESTION 541 某台交换机输出信息如下，以下哪个接口可以转发VLAN ID为40的数据帧，并且转发时不携带标签？___
A. GE0/0/4
B. GE0/0/2
C. GE0/0/3
D. GE0/0/5
【单选题】
QUESTION 544 Truk端口可以允许多个VLAN通过，包括VLAN4096。___
【单选题】
QUESTION 546 路由器输出信息如下，则此接口获取到的IPv6地址为？___
A. 3000::3000/64
B. 3000::1/64
C. 3000::2/64
D. 2000::1/64
【单选题】
QUESTION 547 在IPv6网络中，OSPFv3不再支持下面哪项特性？___
A. Router-ID
B. 多区域划分
C. 认证功能
D. 以组播方式发送协议报文
【单选题】
QUESTION 548 DHCPv6客户端发送哪个报文，回应DHCPv6服务器发送的Advertise报文？___
A. Offer
B. Request
C. Reply
D. Advertise
【单选题】
QUESTION 550 段路由SR（Segment Routing）是对现有IGP协议进行扩展，基于MPLS协议，采用源路由技术而设计的在 网络上转发数据包的一种协议。___
【多选题】
如果以太网数据帧Length/Type=0x0806，下列说法正确的是？ (多选) ___
A. 此数据帧为Ethernet II帧
B. 此数据帧为IEEE 802.3帧
C. 此数据帧的源MAC地址一定不是FFFF-FFFF-FFFFF
D. 此数据帧的目的MAC地址一定是FFFF-FFFF-FFFFF
【多选题】
使能Proxy ARP功能的路由器收到一个ARP请求报文时，发现其所请求的IP地址不是自己，则会进行如下哪些操作？ (多选) ___
A. 如果查到有到该目的地址的路由，则将自己的MAC地址发给ARP请求方
B. 丢弃报文
C. 广播ARP请求报文
D. 查找有无到该目的地址的路由
【多选题】
以下哪些存储介质是华为路由器常用的存储介质？(多选) ___
A. SDRAM
B. NVRAM
C. Flash
D. Hard Disk
E. SD Card
【多选题】
如下图所示，交换机开启STP协议，当网络稳定后，下列说法正确的有？___
A. SWB是这个网络中的根桥
B. SWA是这个网络中的根桥
C. SWB的两个端口都处于Forwarding状态
D. SWC的两个端口都处于Forwarding状态
【多选题】
下图所示的两台交换机都开启了STP协议，某工程师对此网络做出了如下结论，你认为正确的结论有？（多 选）___
A. SWB的G0/0/2端口稳定在Forwarding状态
B. SWA的G0/0/2端口稳定在Forwarding状态
C. SWB的两个端口都是指定端口
D. SWA的G0/0/3端口稳定在Forwarding状态
E. SWA的两个端口都是指定端口
【多选题】
RSTP协议比STP协议增加了哪种端口角色？ (多选) ___
A. Alternate端口
B. Backup端口
C. 根端口
D. 指定端口
【多选题】
运行STP协议的交换网络在进行生成树计算时用到了以下哪些参数？ (多选) ___
A. 根路径开销
B. 端口ID
C. 桥ID
D. Forward Delay
【多选题】
如下图所示的网络，下列哪些命令可以使RouterA可以转发目的IP地址为10.0.3.3的效据包？ (多选) ___
A. ip route-static 10.0.3.3 255.255.255.255 10.0.12.2
B. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.3.3 255.255.255.255 10.0.2.2
C. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2
D. ip route-static 10.0.3.3 255.255.255.255 10.0.2.2
【多选题】
下列描述正确的是（）。 (多选) ___
A. 路由表中下一跳是多余的，有出接口就可以指导报文转发
B. 通过不同路由协议获得的路由，其优先级也不相同
C. 不同路由协议所定义的度量值不具有可比性
D. 不同路由协议所定义的度量值具有可比性
【多选题】
ip route-static 10.0.2.2 255.255.255.25510.0.12.2 preference 20，关于此命令说法正确的是？ (多选) ___
A. 该路由可以指导目的IP地址为10.0.2.2的数据包转发
B. 该路由可以指导目的IP地址为10.0.12.2的数据包转发
C. 该路由优先级为20
D. 该路由的NextHop为10.0.12.2
推荐试题
【单选题】
中国特色社会主义道路是实现社会主义现代化、创造人民美好生活的______。___
A. 理论依据
B. 必由之路
C. 根本保障
D. 行动指南
【单选题】
确保党始终总揽全局、协调各方，必须____。___
A. 得民心者得天下
B. 坚持和完善党的领导的体制机制
C. 学习达国家的经验
D. 选举优秀领导人
【单选题】
增强面对新时代新使命,必须在全党营造善于学习、勇于实践的浓厚氛围，建设马克思主义____政党。 ___
A. 人民型
B. 事业型
C. 研究型
D. 学习型
【单选题】
必须坚持党的（ ），既要充分发扬民主，又要善于集中。 ___
A. 集中民主制
B. 民主集中制
C. 多党合作制
D. 全民民主制
【单选题】
党是最高政治领导力量，是推进伟大事业的（ ）保证。 ___
【单选题】
According to one study, what do green spaces do to people? ___
A. Improve their work efficiently.
B. Add to their sustained happiness.
C. Help them build a positive attitude towards life.
D. Lessen their concerns about material well-being.
【单选题】
What does Dr. White say people usually do to make themselves happier? ___
A. Earn more money.
B. Settle in an urban area.
C. Gain fame and popularity.
D. Live in a green environment.
【单选题】
What does Dr. White try to find out about living in a greener urban area? ___
A. How it affects different people.
B. How strong its positive effect is.
C. How long its positive effect lasts.
D. How it benefits people physically.
【单选题】
What did Dr. White’s research reveal about people living in a green environment? ___
A. Their stress was more apparent than real.
B. Their decisions required less deliberation.
C. Their memories were greatly strengthened.
D. Their communication with others improved.
【单选题】
According to Dr. White, what should the government do to build more green spaces in cities? ___
A. Find financial support.
B. Improve urban planning.
C. Involve local residents in the effort.
D. Raise public awareness of the issue.
【单选题】
The survey by the Kaiser Family Foundation is mentioned to illustrate the idea that . ___
A. kids don’t always follow parents’ rules
B. only few parents believe the good news
C. much media use results in bad health
D. parents’ rules make a huge difference
【单选题】
What did the kids do when parents set any time or content limits, according to the Kaiser Family Foundation? ___
A. They cut down on their screen time.
B. They appreciated their parents’ love.
C. They spent more time staying outdoor.
D. They accepted parents’ rules unwillingly.
【单选题】
What will Kenneth Ginsburg most probably suggest that parents should do? ___
A. Avoid setting firm rules.
B. Avoid ruling with an iron grip.
C. Set rules after family discussion.
D. Set rules that are easy to understand.
【单选题】
Margaret Broe -Fitzpatrick finds it impossible. ___
A. to achieve just- right parenting
B. to keep track of everything done by the kids
C. for the kids to face rules alone
D. for the kids to observe rules without protest
【单选题】
The passage is mainly intended for parents . ___
A. whose kids have difficulty in self- discipline
B. whose kids are addicted to media use
C. who have doubts about setting rules
D. who are too busy to care for their kids
【单选题】
The word “it” (Para. 2) most probably refers to. ___
A. the lack of stable communities
B. the breakdown of informal information channels
C. the increased mobility of families
D. the growing number of people moving from place to place
【单选题】
The main problem people may encounter today arises from the fact that . ___
A. they have to learn new things consciously
B. they lack the confidence of securing reliable and trustworthy information
C. they have difficulty obtaining the needed information readily
D. they can hardly carry out casual communications with an extended family
【单选题】
From the passage we can infer that _______. ___
A. electronic mail will soon play a dominant role in transmitting messages
B. it will become more difficult for people to keep secrets in an information era
C. people will spend less time holding meetings or conferences
D. events will be reported on the spot mainly through satellites
【单选题】
Technology facilitates _______. ___
A. sharing information
B. storing and sending information
C. providing people with easy access to more information
D. all of the above
【单选题】
We can learn from the last paragraph that _______. ___
A. it is necessary to obtain as much
B. people should make the best use of the information
C. we should realize the importance of accumulating information
D. it is of vital importance to acquire needed information efficiently
【单选题】
The author thinks that people are _________. ___
A. satisfied with their appearance
B. concerned about appearance in old age
C. far from neglecting what is in fashion
D. reluctant to follow the trends in fashion
【单选题】
Fashion magazines and TV advertisements seem to link fashion to _________. ___
A. confidence in life
B. personal dress
C. individual hair style
D. personal future
【单选题】
Causes of fashions are _________. ___
A. uniform
B. varied
C. unknown
D. inexplicable
【单选题】
Present-day society is much freer and easier because it emphasizes _________. ___
A. uniformity
B. formality
C. informality
D. individuality
【单选题】
Which is the main idea of the last paragraph? ______________ ___
A. Care about appearance in formal situations.
B. Fashion in formal and informal situations.
C. Ignoring appearance in informal situations.
D. Ignoring appearance in all situations.
【单选题】
Permissive parents would ________. ___
A. let their children read any books they like to
B. not let their children see any films they like to
C. not let their children read any books without first checking their contents
D. let their children see the films with their first checking
【单选题】
The fact that parents check the contents of the book or the film for their children to read or see shows __________. ___
A. the necessity of censorship
B. that many books and films are bad
C. that children need their parents to help them understand more
D. that the parents are permissive
【单选题】
Which of the following statements is NOT true?____________ ___
A. Some adults can’t tell right from wrong.
B. Censorship is compared to the law because both of them perform good service to society as a whole.
C. Censors pay attention only to genuine works of art.
D. Censorship is necessary because many books, plays and films are far from being “works of art”.
【单选题】
What does the word “corrupt” in Para.4 mean?__________ ___
A. Make morally bad.
B. Hurt.
C. Injure.
D. Damage.
【单选题】
What would be the best title of this passage?_____________ ___
A. Permissive Parents and Responsible Parents.
B. Censorship and the Law.
C. Censors Value Artistic Merits .
D. Censorship Performs Good Service to Society.
【单选题】
Lie detectors are widely used in the United States because _____________. ___
A. they can help detect people’s emotional stress
B. they can help detect people's physiological changes
C. they can help find out whether a person is telling the truth or not
D. they can measure the subject’s electrical resistance
【单选题】
According to the passage, we know that Britain______________. ___
A. will adopt lie detectors widely
B. will adopt lie detectors on a smaller scale
C. adopt lie detectors
D. has not decided whether to adopt lie detectors or not
【单选题】
The tests themselves are by no means free from error..." (Line 1-2.Para.3) means ____________. ___
A. the tests definitely have no error
B. the tests sometimes make mistakes
C. the polygraphers do not make mistakes
D. the polygraphers can avoid error by using some techniques
【单选题】
Which of the following is true? ________________ ___
A. The tests are conducted by qualified polygraphers.
B. Innocent people may blush or stammer when questioned.
C. Guilty people can definitely be found out by answer questions
D. Guilty people may escape by refusing to answer questions.
【单选题】
What troubles lie detector researchers most is that _______________. ___
A. innocent people are convicted crimes
B. innocent people will learn to tell lies
C. lie detectors may cause industrial unrests
D. lie detectors are sometimes not dependable
【单选题】
In the passage the author's attitude towards "mixed-ability teaching" is _______. ___
A. critical
B. questioning
C. approving
D. objective
【单选题】
By "held back" (Line 1) the author means _____. ___
A. made to remain in the same classes
B. forced to study in the lower classes
C. drawn to their studies
D. prevented from advancing
【单选题】
The author argues that a teacher's chief concern should be the development of the student's _________. ___
A. personal qualities and social skills
B. total personality
C. learning ability and communicative skills
D. intellectual ability
【单选题】
Which of the following is NOT MENTIONED in the third paragraph? __________ ___
A. Group work gives pupils the opportunity to learn to work together with others.
B. Pupils also learn to develop their reasoning abilities.
C. Group work provides pupils with the opportunity to learn to be capable organizers.
D. Pupils also learn how to participate in teaching activities.
【单选题】
The author's purpose in writing this passage is to ______. ___
A. argue for teaching bright and not-so-bright pupils in the same class
B. recommend pair work and group work for classroom activities
C. offer advice on the proper use of the library
D. emphasize the importance of appropriate formal classroom teaching
