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信息安全工程师每日一练试题(2022/1/5)
来源:信管网 2022年01月06日 【所有评论 分享到微信

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信息安全工程师每日一练试题内容(2022/1/5)

试题1: 无线传感器网络容易受到各种恶意攻击,以下关于其防御手段说法错误的是()。
A.采用干扰区内节点切换频率的方式抵御干扰
B.通过向独立多路径发送验证数据来发现异常节点
C.利用中心节点监视网络中其它所有节点来发现恶意节点
D.利用安全并具有弹性的时间同步协议对抗外部攻击和被俘获节点的影响
试题解析与讨论:www.cnitpm.com/st/3274326177.html
试题参考答案:C

试题2: 以下关于网络流量监控的叙述中,不正确的是(  )。
A.网络流量监控分析的基础是协议行为解析技术
B.数据采集探针是专门用于获取网络链路流量数据的硬件设备
C.流量监控能够有效实现对敏感数据的过滤
D.流量监测中所监测的流量通常采集自主机节点、服务器、路由器接口、链路和路径等
试题解析与讨论:www.cnitpm.com/st/3898717155.html
试题参考答案:C

试题3: 外部网关协议BGP是不同自治系统的路由器之间交换路由信息的协议,BGP-4使用四种报文:打开报文、更新报文、保活报文和通知报文。其中用来确认打开报文和周期性地证实邻站关系的是(  )。
A.打开报文
B.更新报文
C.保活报文
D.通知报文
试题解析与讨论:www.cnitpm.com/st/411084710.html
试题参考答案:C

试题4: 在信息安全防护体系设计中,保证“信息系统中数据不被非法修改、破坏、丢失等”是为了达到防护体系的()目标。
A.可用性
B.保密性
C.可控性
D.完整性试题解析与讨论:www.cnitpm.com/st/326929310.html
试题参考答案:D

试题5: 在DES加密算法中,子密钥的长度和加密分组的长度分别是(  )。
A.56位和64位
B.48位和64位
C.48位和56位
D.64位和64位
试题解析与讨论:www.cnitpm.com/st/3895821970.html
试题参考答案:B

试题6

设在RSA的公钥密码体制中,公钥为(c,n)=(13,35),则私钥为()
A、11
B、13
C、15
D、17

试题解析与讨论:www.cnitpm.com/st/2850915759.html
试题参考答案:B

试题7: Trust is typically interpreted as a subjective belief in the reliability, honesty and  security  of an entity on which we depend ( )our welfare .In online environments we depend on a wide spectrun of things , ranging from computer hardware,software and data to people and organizations. A security solution always assumes certain entities function according to specific policies.To trust is precisely to make this sort of assumptions , hence , a trusted entity is the same as an entity that is assumed to function according to  policy . A consequence of this is that a trust component of a system must work correctly in order   for the security of that system to hold, meaning that when a trusted(  )fails , then the sytems and applications that depend on it can(  )be considered secure.An often cited articulation of this principle is:" a trusted system or component is one that can break your security policy” ( which happens when the trust system fails ). The same applies to a trusted party such as a service provider ( SP for short )that is , it must operate according to the agreed or assumed   policy in order to ensure the expected level of securty and quality of services . A paradoxical   conclusion to be drawn from this analysis is that security assurance may decrease when increasing the number of trusted components and parties that a service infrastructure depends on . This is because the security of an infrastructure consisting of many.
Trusted components typically follows the principle of the weakest link , that is ,in many situations the the overall security can only be as strong as the least reliable or least secure of all the trusted components. We cannot avoid using trusted security components,but the fewer the better. This is important to understand when designing the  identity management architectures,that is, fewer the trusted parties in an identity management model , stronger the security that can be achieved by it.
The transfer of the social constructs of identity and trust into digital and computational concepts helps in designing and implementing large scale online markets and communities,and also plays an important role in the converging mobile and Internet environments.Identity management (denoted Idm hereafter ) is about recognizing and verifying the correctness of identitied in online environment .Trust management becomes a component of (  )whenever different parties rely on each other for identity provision and authentication . IdM and Trust management therefore depend on each other in complex ways because the correctness of the identity itself must be trusted for the quality and reliability of the corresponding entity to be trusted.IdM is also an essential concept when defining  authorisation policies in personalised services.
Establishing trust always has a cost, so that having  complex trust requirement typically leads to high overhead in establishing the required trust. To reduce costs there will be incentives for stakeholders to “cut corners”regarding trust requirements ,which could lead to inadequate security . The challenge is to design IdM systems with relatively simple trust requirements.Cryptographic mechanisms are often a core component of IdM solutions,for example,for entity and data authentication.With cryptography,it is often possible to propagate trust from where it initially exists to where it is needed .The establishment of initial(  )usually takes place in the physical world,and the subsequent propagation of trust happens online,often in an automated manner.
(71)A.with
B. on
C. of
D. for
(72)A.entity
B.person
C.component
D.thing
(73)A. No longer
B. never
C. always
D.often
(74)A. SP
B. IdM
C.Internet
D.entity
(75)A.trust
B.cost
C.IdM
D. solution
试题解析与讨论:www.cnitpm.com/st/389944612.html
试题参考答案:D、C、A、B、A

试题8: 网页木马是一种通过攻击浏览器或浏览器外挂程序的漏洞,向目标用户机器植入木马、病毒、密码盗取等恶意程序的手段,为了要安全浏览网页,不应该 (  )。
A.定期清理浏览器缓存和上网历史记录
B.禁止使用ActiveX控件和_Java脚本
C.在他人计算机上使用“自动登录”和“记住密码”功能
D.定期清理浏览器Cookies
试题解析与讨论:www.cnitpm.com/st/4112212200.html
试题参考答案:C

试题9: 安全模型是一种对安全需求与安全策略的抽象概念模型,安全策略模型一般分为自主访问控制模型和强制访问控制模型。以下属于自主访问控制模型的是 (  )。
A.BLP模型
B.基于角色的存取控制模型
C.BN模型
D.访问控制矩阵模型
试题解析与讨论:www.cnitpm.com/st/4109626557.html
试题参考答案:D

试题10: 计算机病毒的生命周期一般包括()四个阶段
A.开发阶段、传播阶段、发现阶段、清除阶段
B.开发阶段、潜伏阶段、传播阶段、清除阶段
C.潜伏阶段、传播阶段、发现阶段、清除阶段
D.潜伏阶段、传播阶段、触发阶段、发作阶段
试题解析与讨论:www.cnitpm.com/st/3272727591.html
试题参考答案:D

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