相关试题
【单选题】
802.11n概念正确的是___
A. 采用多输入多输出（MIMO）和频道绑定（CB）的正交频分复用（OFDM）技术
B. 工业、科技和医疗（ISM）领域内的 3 个 5 GHz 互不重叠频带
C. 最高速率可以达到108M
D. 802.11n协议标准还没有被批准
E.
F.
【单选题】
下面哪个协议用于发现设备的硬件地址.（ ）___
A. ICMP
B. RARP
C. IP
D. ARP
E.
F.
【单选题】
802.1x用于WLAN的安全认证，在无线客户端与（ ）之间进行身份的认证___
A. AP
B. AC
C. AS
D. WLAN交换机
E.
F.
【单选题】
A、B两站组成点对点，若A站发给B站的光纤断了，则线路告警现象为___
A. A.A站RLOS、B站MS-RD1
B. B.A站MS-RD1、B站R-LOS
C. C.A站R-LOS、B站R-LOS
D. D.A站MS-RD1、B站MS-RD1
E.
F.
【单选题】
AAA、AA、A和普通级非跨省专线分别对应的投诉工单处理时限为（）小时___
A. A.2,2,4,6
B. B.2,4,6,8
C. C.3,4,5,6
D. D.3,4,6,8
E.
F.
【单选题】
AN5006-15ONU上网管的准备工作不包括以下哪个步骤：( )___
A. 授权ONU
B. 写入管理IP、VLAN
C. 添加静态路由
D. 检测物理配置，添加trap地址
E.
F.
【单选题】
AN5006-15ONU语音业务开通不需要哪个些数据( )___
A. MGCIP、ONU语音IP
B. 语音VLAN
C. 电话号码
D. 端点域名、端点用户名
E.
F.
【单选题】
AN5006-20ONU上网管的准备工作不包括以下哪个步骤：( )___
A. 授权ONU
B. 设置带宽分配
C. 添加静态路由
D. 检测物理配置，添加trap地址
E.
F.
【单选题】
AN5506-04/06/07的上联端口号分别为（ ）___
A. 10/26/27
B. 26/10/27
C. 27/26/10
D. 10/27/26
E.
F.
【单选题】
下面哪种情况下正有MSAP网元时钟不可能进入保持状态___
A. 线路光功率下降；
B. MCU烧毁；
C. MCU出现STM＿LOS告警；
D. 线路光缆断。
E.
F.
【单选题】
AN5516-01GPON的PUBA盘插在第16槽位，其板间通信ip为（ ）___
A. 10.25.100.18
B. 10.25.100.16
C. 10.25.100.14
D. 10.25.100.17
E.
F.
【单选题】
AN5516-01GPON的SNMP时间系统配置中的地址填（ ）___
A. 网管服务器的ip地址
B. 网管服务器的数据库ip地址
C. olt的管理ip地址
D.
E.
F.
【单选题】
AN5516-01GPON的组播gem port端口号为（ ）___
A. 1
B. 2
C. 3
D. 4
E.
F.
【单选题】
下面哪一个设备最适合工作于两个信任程度不同的网络之间，并对两个网络之间的通信进行控制，通过强制实施统一的安全策略，防止对重要信息资源的非法存取和访问以达到保护系统安全的目的.（ ）___
A. 入侵检测系统
B. 路由器
C. 防火墙
D. 网关
E.
F.
【单选题】
ANM2000网管的TL1接口使用的默认端口号是( )。___
A. 6000
B. 9000
C. 25000
D. 50000
E.
F.
【单选题】
ARP（Address Resolution Protocol）用于将一个IP 地址映射到正确的MAC 地址。ARP可以分为（ ）两种。 ___
A. 动态和静态
B. 逻辑和物理
C. 二层和三层
D. 面向连接和面向非连接
E.
F.
【单选题】
arp包的包类型为（ ）___
A. 0x8808
B. 0x8100
C. 0x0800
D. 0x0806
E.
F.
【单选题】
ARP协议的作用是___
A. 将端口号映射到IP地址
B. 连接IP层和TCP层
C. 广播IP地址
D. 将IP地址映射到第二层地址
E.
F.
【单选题】
ASON网络通过透明帧操作DCC的命令为( )___
A. 60 60 00
B. 61 61 00
C. 0f 88 00
D. 0f 66 00
E.
F.
【单选题】
AU-AIS的告警含义是（ ）___
A. K2字节的最后3个比特内容是110信号
B. K2字节的最后3个比特内容是全1信号
C. H1、H2字节的内容是全1信号
D. H1、H2、H3及该VC4和高阶通道开销的所有字节内容为全1信号
E.
F.
【单选题】
下面哪种业务属于IPTV通信类服务（ ）___
A. 视频点播
B. 即时通信
C. 时移电视
D. 直播电视
E.
F.
【单选题】
AU-AIS的告警含义是_?( )___
A. K2字节的最后3个比特内容是110信号
B. K2字节的最后3个比特内容是全1信号
C. H1、H2字节的内容是全1信号
D. H1、H2、H3及该VC4和高阶通道开销的所有字节内容为全1信号
E.
F.
【单选题】
B1_EXC误码的含义为 ___
A. 再生段误码过量
B. 复用段误码过量
C. 高阶通道误码过量
D. 再生段信号劣化
E.
F.
【单选题】
CM-IMS网络理论上不支持以下哪种接入方式___
A. EDGE/TD-SCDMA数据卡接入 理论上全都可以接入
B. PON接入
C. WLAN接入
D. xDSL接入
E. 理论上全都可以接入
F.
【单选题】
CMNET骨干网和国内运营商之间BGP策略是( ) ___
A. 把从直连专线学到路由的Local-Preference设置为500
B. 把从直连专线学到路由的Local-Preference设置为100
C. 把从直连专线学到路由的Local-Preference设置为200
D. 把从直连专线学到路由的Local-Preference设置为300
E.
F.
【单选题】
下面选项中，（ ）属于动态配置VLAN的方法.___
A. 由DHCP 服务器分配VLAN
B. 由智能交换机来划分VLAN
C. 按交换机端口分配VLAN
D. 按MAC 地址分配VLAN
E.
F.
【单选题】
CMNET路由器端口down，发现链路状态down，需要排查全程传输线路。E1类型线路可以通过在最近端和最远端打环，由数据室在CMNET路由器查看状态，确认故障点。( )___
【单选题】
CMNET网络故障级别不包括( ) ___
A. 重大故障
B. 严重故障
C. 次要故障
D. 一般故障
E.
F.
【单选题】
CMNET网络中路由器出现业务单板不注册故障，不正确的处理方法（ ）___
A. 对单板手工拔插重启处理
B. 远程对单板进行下电、上电重启处理
C. 对单板直接进行更新处理
D. 对主控板进行复位重启处理
E.
F.
【单选题】
CMNET业务全阻：由于某省省网上联链路/设备故障造成该省出省全部互联网业务中断（ ）小时以上。 ___
A. 0.5
B. 1
C. 1.5
D. 2
E.
F.
【单选题】
Corba接口程序的log文件是哪一个？（）___
A. Corba接口程序的log文件是哪一个？（）
B. ns.log
C. ntf.log
D. ntfs.log
E.
F.
【单选题】
下面那个IP不是AD盘私网IP.( )___
A. 10.100.10.240
B. 10.100.10.241
C. 10.200.10.242
D. 10.100.10.243
E.
F.
【单选题】
corba接口与第三方对接时采用的通知通道端口为（ ）___
A. 3075
B. 3076
C. 3077
D. 3078
E.
F.
【单选题】
CS-1的单时隙理论数据传输速率___
A. 8Kbps
B. 9.05Kbps
C. 10.6Kbps
D. 21.4Kbps
E.
F.
【单选题】
CSCF位于IMS架构的（）层___
A. 业务层
B. 接入层
C. 控制层
D. 传输层
E.
F.
【单选题】
C类地址最大可能子网位数是（ ）___
A. 6
B. 8
C. 12
D. 14
E.
F.
【单选题】
DHCP协议的功能是（）___
A. 为客户自动进行注册
B. 为客户机自动配置IP地址
C. 使DNS名字自动登录
D. 为WINS提供路由
E.
F.
【单选题】
选出基于TCP协议的应用程序（ ）___
A. TELNET
B. PING
C. OSPF
D. TFTP
E.
F.
【单选题】
DNS服务器提供那种服务?___
A. 提供一个IP地址, 确定是否是主机名称
B. 域名转换成IP地址
C. 对主机名称运行一个拼字检查以确保准确的路由
D. 将特别的IP地址对应到个别主机
E.
F.
【单选题】
dot1q标签头为（）个字节 ___
A. 2
B. 4
C. 8
D. 16
E.
F.
推荐试题
【单选题】
Learning how to use chopsticks is easy for me, ___ learning how to conduct myself at the table is quite difficult.
A. whereas
B. however
C. therefore
D. besides
【单选题】
___ that the patient smokes 50 cigarettes a day, it would be reasonable to assume there is some lung damage.
A. To give
B. Giving
C. Given
D. Having given
【单选题】
Kenyan (肯尼亚的) women tend to vote for those who could provide them ___ the necessary food to live on.
A. of
B. with
C. for
D. about
【单选题】
___ all obstacles and failures, the scientist continued doing his experiments day and night.
A. In spite of
B. In contrast to
C. As a matter of
D. As a result of
【单选题】
I’m willing to ___ that a larger car would have cost more, but I still think we should have bought one.
A. withdraw
B. indicate
C. abandon
D. concede
【单选题】
Manufacturing (制造) companies spend millions of pounds on advertisements, trying to ___ customers that their products are better than those of other companies.
A. confine
B. convince
C. depress
D. reconcile
【单选题】
He is not the right person for the project: he is not very technically minded and ___, he does not have the sense of responsibility.
A. instead
B. yet
C. furthermore
D. nevertheless
【单选题】
Death rates declined in many places, partly because of the ___ in hunger.
A. decrease
B. myth
C. obstacle
D. burden
【单选题】
In deciding whether or not a situation is safe, pilots must be taught to assume that the worst will happen, and then to ___ whether there is a risk or not.
A. absorb
B. apply
C. assess
D. occupy
【单选题】
The worker was not worried as he knew that if he gave up the job, there would be ___ opportunities for him to work somewhere else.
A. formative
B. marginal
C. vigorous
D. numerous
【单选题】
The research shows the region might ___ overheating (经济过热), but the policymakers so far appear to be relatively relaxed about the future of the economy.
A. catch a glimpse of
B. be at risk of
C. take a toll on
D. be free from
【单选题】
Measures have been taken to ensure that no student will have to ___ of college for economic reasons.
A. lay out
B. cancel out
C. drop out
D. stand out
【单选题】
Stress that is not treated can lead to significant medical illnesses, which ___ can lead to greater stress and even depression (抑郁症).
A. after all
B. in turn
C. on the contrary
D. at least
【单选题】
Narcissism (自恋) has its benefits in terms of self-belief and confidence, but it also tends to be ___ risky decision-making.
A. associated with
B. contrasted with
C. reserved for
D. relieved of
【单选题】
When Tom saw his doctor again, she suggested that maybe a more substantial lunch, like a sandwich, might ___ his desire to have snacks in the afternoon.
A. count on
B. cut back on
C. hold on to
D. contribute to
【单选题】
You shouldn’t ___ – let your children make their own decisions.
A. interact
B. abuse
C. startle
D. interfere
【单选题】
This is a huge and difficult project and if you take it up, you ___ many difficulties.
A. like to encounter
B. like encountering
C. are likely to encounter
D. are like to encounter
【单选题】
The ability to live for a long time without water is characteristic ___ the camel.
A. of
B. for
C. about
D. in
【单选题】
Rising sales is a good ___ that this product is well received in the market.
A. response
B. convention
C. indication
D. Influence
【单选题】
When tourists travel abroad, they are sometimes ___ by the local people because the tourists don’t know the real value of products.
A. turned in
B. given chase
C. wrapped up
D. ripped off
【单选题】
The professor’s lecture ___ the capacity of his young audience. They all looked puzzled at him.
A. pointed out
B. went beyond
C. contributed to
D. kept off
【单选题】
We must ___ on the amount of time we use on this project.
A. cut both ways
B. cut in line
C. cut off
D. cut down
【单选题】
We have to be very patient with this experiment. It will take time for some effects to ___ clearly.
A. build up
B. break up
C. clear up
D. show up
【单选题】
Perhaps there is a(n) ___ of truth in both theories, but few of us would ever have the opportunity to find out.
A. lump
B. substance
C. section
D. element
【单选题】
Be careful when you get along with her because she is known for her short ___.
A. temper
B. emotion
C. mood
D. feeling
【单选题】
It seems that wearing less formal clothing to school and work is becoming a(n) ___.
A. trend
B. campaign
C. goal
D. occurrence
【单选题】
You cannot correct children’s bad behavior simply with a (n) ___ or two on the hand or face.
A. slap
B. smash
C. slam
D. strike
【单选题】
Our investigations (调查) ___ something very surprising – many of the employees are underpaid and work overtime all the time.
A. reveal
B. bump
C. rip
D. frustrate
【单选题】
She was James’s faithful assistant, in whom he could have ___ confidence.
A. essential
B. automatic
C. ultimate
D. absolute
【单选题】
If you visit this website, you can ___ the categories to find information about all the universities in that area.
A. observe
B. browse
C. glance
D. look
【单选题】
Making New Year’s resolutions (计划) is a custom that still ___ in this country.
A. prevails
B. attaches
C. descends
D. launches
【单选题】
The military officers were more ___ about their own victory and therefore more willing to predict their enemy’s defeat.
A. appropriate
B. ignorant
C. negative
D. optimistic
【单选题】
___ is no doubt that overwork and much worry caused his illness.
A. It
B. There
C. Here
D. This
【单选题】
___ a day goes by that I don’t receive dozens of junk mails in my email box.
A. None
B. Usually
C. Nearly
D. Hardly
【单选题】
Please trust me. Try this new method ___.
A. you feel very relaxed
B. and you feel very relaxed
C. you will feel very relaxed
D. and you will feel very relaxed
【单选题】
John said Mom was coming back tomorrow, not next week. If this is the ___, we’ll all have to clean the house thoroughly.
A. point
B. norm
C. question
D. case
【单选题】
It is far too late for you to go out and play football, ___ the fact that it’s raining.
A. no doubt
B. despite
C. given
D. not to mention
【单选题】
However, under no circumstances should we ___ our achievements, nor should we regard our accomplishments as unimportant.
A. present
B. perceive
C. exemplify
D. exaggerate
【单选题】
Jane picked up a magazine from the bookshelf and started reading here and there ___.
A. accurately
B. randomly
C. emotionally
D. continually
【单选题】
In many Middle Eastern cultures a deadline is taken as a(n) ___, and such terms should not appear in a purchase contract with businessmen from these countries.
A. target
B. favor
C. honor
D. insult
