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信息安全工程师每日一练试题内容（2021/4/10）

试题1：

WI-FI网络安全接入是一种保护无线网络安全的系统，WPA加密模式不包括（）
A、WPA和WPA2
B、WPA-PSK
C、WEP
D、WPA2-PSK

试题解析与讨论：www.cnitpm.com/st/284804709.html
试题参考答案：C

试题2：

下列岗位哪个在招聘前最需要进行背景调查？（）
A.采购人员
B.销售人员
C.财务总监
D.行政人员

试题解析与讨论：www.cnitpm.com/st/260429038.html
试题参考答案：C

试题3： 以下恶意代码中，属于宏病毒的是（）
A. Macro.Melissa
B. Trojian.huigezi.a
C. Worm.Blaster.g
D. Backdoor.Agobot.frt
试题解析与讨论：www.cnitpm.com/st/327144885.html
试题参考答案：A

试题4：

以下关于数字证书的叙述中，错误的是（）
A、证书通常由CA安全认证中心发放
B、证书携带持有者的公开密钥
C、证书的有效性可以通过验证持有者的签名
D、证书通常携带CA的公开密钥

试题解析与讨论：www.cnitpm.com/st/284742576.html
试题参考答案：D

试题5： 基于MD4和MD5设计的S/Key口令是一种一次性口令生成方案，它可以对访问者的身份与设备进行综合验证，该方案可以对抗（  ）。
A、网络钓鱼
B、数学分析攻击
C、重放攻击
D、穷举攻击
试题解析与讨论：www.cnitpm.com/st/4108815769.html
试题参考答案：C

试题6：

数字水印技术通过在数字化的多媒体数据中嵌入隐蔽的水印标记，可以有效地对数字多媒体数据的版权保护等功能。以下各项中，不属于数字水印在数字版权保护必须满足的基本应用需求的是（）
A、安全性
B、隐蔽性
C、鲁棒性
D、可见性

试题解析与讨论：www.cnitpm.com/st/2846317420.html
试题参考答案：D

试题7：

目前，我国信息安全管理格局是一个多方“齐抓共管”的体制，多头管理现状决定法出多门，《计算机信息系统国际联网保密管理规定》是由下列哪个部门所制定的规章制度？（）
A.公安部
B.国家保密局
C.信息产业部
D.国家密码管理委员会办公室

试题解析与讨论：www.cnitpm.com/st/260659550.html
试题参考答案：B

试题8：

数字签名最常见的实现方法是建立在（）的组合基础之上
A、公钥密码体制和对称密码体制
B、对称密码体制和MD5摘要算法
C、公钥密码体制和单向安全散列函数算法
D、公证系统和MD4摘要算法

试题解析与讨论：www.cnitpm.com/st/2845924106.html
试题参考答案：C

试题9： 数字水印是通过数字信号处理的方法，在数字化的多媒体数据中，嵌入隐蔽的水印标记。其应用领域不包括（）
A.版权保护
B.票据防伪
C.证据篡改鉴定
D.图像数据试题解析与讨论：www.cnitpm.com/st/326959927.html
试题参考答案：D

试题10： 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