What are two types of ciphers？加密的两种方式是...

单项选择题What are two types of ciphers？加密的两种方式是？（）

A.Transposition and Permutation.换位和置换
B.Substitution and Replacement.替代和置换
C.Transposition and Substitution.换位和替代
D.Transposition and Shift.换位和转换

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1.单项选择题Which of the following is true about Kerberos?以下哪一个是关于Kerberos的描述是正确的？（）

A.It encrypts data after a tickt is granted，but passwords are exchanged in plaintext.它在ticket获得授权后对数据进行加密，但是密码的交换是明文方式。
B.It depends upon symmetric ciphers.它依赖于对称加密。
C.It is a second party authentication system.它是一种第二方的认证系统
D.It utilizes public key cryptography.它使用公钥密码学。

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2.单项选择题Which must bear the primary responsibility for determining the level of protection needed for information systems resources?哪一个角色必须承担决定信息系统资源保护级别的主要责任？（）

A.IS security specialists IS安全专家
B.Senior Management高级管理层
C.Senior security analysts高级安全分析师
D.systems Auditors系统审计师

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3.单项选择题A deviation from an organization-wide security policy requires which of the following?从组织范围的安全策略偏离需要下列哪项？（）

A.Risk Reduction降低风险
B.Risk Containment风险控制
C.Risk acceptance风险接受
D.Risk Assignment风险分配

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4.单项选择题Who should measure the effectiveness of Information System security related controls in an organization?在一个组织内，谁应该衡量信息系统安全相关控制的有效性？（）

A.The local security specialist本地安全专家
B.The systems auditor系统审计师
C.The central security manager中心安全经理
D.The business manager业务经理

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5.单项选择题The major objective of system configuration management is which of the following?系统配置管理的主要目标是下列哪一个？（）

A.system tracking.系统跟踪
B.system operations.系统操作
C.system maintenance.系统维护
D.system stability.系统稳定性

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6.单项选择题Who is ultimately responsible for the security of a computer based information system within any organization?在任何机构内，哪一项是计算机信息系统安全的根本原因（）

A.an operational issue.操作问题
B.a management issue.管理问题
C.a training issue.培训问题
D.a technical issue.技术问题

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7.单项选择题Which of the following is the best reason for the use of an automated risk analysis tool?下列哪个是使用自动化的风险分析工具最好的理由？（）

A.Automated methodologies require minimal training and knowledge of risk analysis.自动化方法需要最小限度的风险分析知识培训
B.Most software tools have user interfaces that are easy to use大部分软件工具有易于使用的用户界面
C.Information gathering would be minimized and expedited due to the amount of information built into the tool.由于工具内置了大量的信息，信息收集过程将会缩减和加速
D.Much of the data gathere dduring the review cannot be reused for subsequent analysis.在评估期间大部分被收集的数据不能被重用为后续分析

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8.单项选择题In discretionary access environments, which of the following entities is authorized to grant information access to other people?在自主访问环境下,下列哪个实体有权授予其他人信息访问权限?（）

A.Data Owner数据的所有者
B.Manager经理人员
C.Security Manager安全经理
D.Group Leader小组领导

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9.单项选择题The control of communications test equipment should be clearly addressed by security policy for which of the following reasons?通信测试设备的控制应该通过安全策略明确的原因是什么？（）

A.Teste quipment can be used to browse information passing on anetwork.测试设备可以用于浏览在网络上传递的信息
B.Test equipment is difficult to replace if lost or stolen.测试设备如果丢失或被盗很难替换
C.Test equipment is easily damaged.测试设备很容易被损坏
D.Test equipment must always be available for the maintenance personnel.测试设备对于维修人员必须是永远可用的

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10.单项选择题Which one of the following represents an ALE calculation?下列选项哪个表述的是年度预期损失的计算?（）

A.gross loss expectancy x loss frequency.总预期损失x损失概率
B.actual replacem ent cost-proceeds of salvage.实际重置成本-补救款项
C.asset value x loss expectancy.资产价值x损失概率
D.single loss expectancy x annualized rate of occurrence.单一预期损失x年度发生概率

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