【填空题】
3.用Acess 2010创建的数据库文件,其扩展名是___。
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答案
.accdb
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4.分布式数据库是___上分散在计算机网络各结点上, 而___上属于同 一个系统的数据集合。
【填空题】
5.数据库是长期在计算机内的、有组织的、可共享的数据的集合。数据库能为各种用户共享,具有较小的冗余度,数据间联系紧密,并且具有较高的___。
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6.如果两个实体之间具有m:n联系,则将它们转换为关系模型的结果是___个 表。
【填空题】
7.在关系数据模型中,把数据看成一个二维表,每一个二维表称为一个___ 。
【填空题】
8.在关系模型中用来唯一标识元组的属性组称为___)。
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9.在关系数据库中,从关系中找出满足给定条件的元组,该操作可称为___.
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动车组运行途中,列车长每隔 1小时 巡视一次车厢,乘务员每隔___巡视一次车厢。
A. 30分钟
B. 45分钟
C. 1小时
D. 2小时
【单选题】
安全色包___种颜色。
A. 4
B. 3
C. 2
D. 5
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___是我国第一部关于安全生产领域的综合法律,是安全生产的基本法。
A. 安全生产法
B. 劳动法
C. 合同法
D. 铁路法
【单选题】
___事故是由于高处作业引起的。
A. 高处坠落
B. 低处坠落
C. 火灾
D. 电器
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距牵引供电设备带电部分不足___的燃着物体,使用水或灭火器灭火时,牵引供电设备必须停电。
A. 4m
B. 2m
C. 1m
D. 10m
【单选题】
动车组旅客列车___召开安全防火工作会议。
A. 每天
B. 每周
C. 每月
D. 半年
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客运乘务人员对安全设备设施要___知性能、会使用。
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动车组餐车冰箱、立式保温柜随时清理,微波炉___。
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B. 一往返一清
C. 一小时一清
D. 一餐一清
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动车组列车___用湿布擦拭电器。。
A. 允许
B. 可以
C. 能够
D. 不得
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客运乘务人员鞋跟跟径可以是___厘米。
A. 2
B. 2.5
C. 3
D. 4
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客运乘务人员可以___。
A. 赤足穿鞋
B. 穿拖鞋
C. 穿露趾鞋
D. 穿低跟鞋
【单选题】
动车组旅客列车___召开安全防火工作会议。
A. 每天
B. 每周
C. 每月
D. 半年
【单选题】
客运乘务人员的鞋跟高度不超过___厘米。
A. 2
B. 2.5
C. 3
D. 3.5
【单选题】
班前禁止饮酒,班中按规定着装,佩带___。
A. 防护用品
B. 劳保用品
C. 保护用品
D. 防护用具
【单选题】
客运乘务人员对安全设备设施要___知性能、会使用。
A. 知好坏
B. 知维修方法
C. 负责人
D. 知位置
【单选题】
动车组餐车冰箱、立式保温柜随时清理,微波炉___。
A. 一趟一清
B. 一往返一清
C. 一小时一清
D. 一餐一清
【单选题】
动车组列车___用湿布擦拭电器。。
A. 允许
B. 可以
C. 能够
D. 不得
【单选题】
客运乘务人员鞋跟跟径可以是___厘米。
A. 2
B. 2.5
C. 3
D. 4
【单选题】
客运乘务人员可以___。
A. 赤足穿鞋
B. 穿拖鞋
C. 穿露趾鞋
D. 穿低跟鞋
【单选题】
动车组旅客列车___召开安全防火工作会议。
A. 每天
B. 每周
C. 每月
D. 半年
【单选题】
班前禁止饮酒,班中按规定着装,佩带___。
A. 劳保用品
B. 保护用品
C. 防护用品
D. 防护用具
【单选题】
班前禁止饮酒,班中按规定着装,佩带___。
A. 防护用品
B. 劳保用品
C. 保护用品
D. 防护用具
【单选题】
客运乘务人员对安全设备设施要___知性能、会使用。
A. 知好坏
B. 知维修方法
C. 负责人
D. 知位置
【单选题】
动车组餐车冰箱、立式保温柜随时清理,微波炉___。
A. 一趟一清
B. 一往返一清
C. 一小时一清
D. 一餐一清
【单选题】
动车组餐车冰箱、立式保温柜随时清理,微波炉___。
A. 一趟一清
B. 一往返一清
C. 一小时一清
D. 一餐一清
【单选题】
客运乘务人员可以___。
A. 赤足穿鞋
B. 穿拖鞋
C. 穿露趾鞋
D. 穿低跟鞋
【单选题】
动车组列车___用湿布擦拭电器。。
A. 允许
B. 可以
C. 能够
D. 不得
【单选题】
客运乘务人员鞋跟跟径可以是___厘米。
A. 2
B. 2.5
C. 3
D. 4
【单选题】
客运乘务人员对安全设备设施要___知性能、会使用。
A. 知好坏
B. 知维修方法
C. 负责人
D. 知位置
【单选题】
___事故是由于高处作业引起的。
A. 高处坠落
B. 低处坠落
C. 火灾
D. 电器
【单选题】
距牵引供电设备带电部分不足___的燃着物体,使用水或灭火器灭火时,牵引供电设备必须停电。
A. 4m
B. 2m
C. 1m
D. 10m
【单选题】
班前禁止饮酒,班中按规定着装,佩带___。
A. 劳保用品
B. 保护用品
C. 防护用品
D. 防护用具
【多选题】
工作中严格执行劳动安全作业标准、规章制度,认真执行___的标准化作业程序。
A. 上标准岗
B. 干标准活
C. 说标准话
D. 交标准班
【多选题】
动车组安全设施中___无破封。
A. 紧急制动阀
B. 紧急开门按钮
C. 紧急破窗锤
D. 灭火器
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Which Firepower Management Center feature detects and block exploits and hack attempts?___
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hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture?___
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What are two ways to prevent eavesdropping when you perform device management tasks?___
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Which two features are commonly used CoPP and CPPr to protect the control plane? ___
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Which four tunne ling prot ocols are enabled in the Dfit GrpPolicy group policy ?___
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【多选题】
Which two statements regarding the aSA VPN configurations are correct?___
A. The asa has a certificate issued by an external certificate authority associated to the ASDM TrustPoint1
B. The Default WEBVPNGroup Connection Profile is using the aaa with RADIUS server method
C. The Inside-srvbook mark references the https://192.168.1.2url
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【多选题】
Which three ESP fields can be encrypted during transmission?___
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【多选题】
.Which three statements de scribe DHCP spoofing attacks?___
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【多选题】
Which statement about the communication between interfaces on the same security level is true?___
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In which two situations should you use in band management? ___
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Which type of attack can exploit design flaws in the implementation of an application without ?___
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Which term refers to the electromagnetic interference that can radiate from network cables?___
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How does a zone pair handle traffic if the policy de fination of the zone pair is missing?___
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default how does a zone based firewall handle traffic to add from the self zone?___
A. It permits all traffic without inspection
B. It inspects all traffic to determine how it is handled
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Which command should beused to ena ble AAA Authentication to determine if a user can access the privilege command level?___
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Which component offers a variety of security Solution, including firwall, IF Antivirus and antiphishing features?___
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Refer to the exhibit, A Network Secur ity administrator check the ASa firewall NAT policy table rith show nat command, which statement is fails?___
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【单选题】
What is true of an aSa in transparent mode ?___
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What is the effect of the ip scp server enable command?___
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How can you mitigate attacks in which the attacker attaches more than one vLan tag to a packet?___
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Which technology can you implement to centrally mitigate potential threats when users on your network download files that might be malicious?___
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What is the most common implementation of PaT in a standard networked environment?___
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D.
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Which network to pology de scribes multiple LANS in a gec? ___
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Which statement represents a difference between an access list on an aSa versus an access list on a router?___
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D. The asa does not support extended access lists
【单选题】
Which command do you enter to verify the status and settings of an iKE Phase 1 tunnel?___
A. show crypto ipsec as output
B. show crypto isakmp
C. show crypto isakmp policy
D. show crypto ipsec transform