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信息安全工程师每日一练试题内容（2023/11/14）
试题1
在PKI中,关于RA的功能,描述正确的是（ ）。
A.RA是整个PKI体系中各方都承认的一个值得信赖的、公正的第三方机构
B.RA负责产生,分配并管理PKI结构下的所有用户的数字证书,把用户的公钥和用户的其他信息绑在一起,在网上验证用户的身份
C.RA负责证书废止列表CRL的登记和发布
D.RA负责证书申请者的信息录入,审核以及证书的发放等任务,同时,对发放的证书完成相应的管理功能查看答案
试题参考答案：D
试题解析与讨论：www.cnitpm.com/st/389837447.html
试题2
下面不属于PKI组成部分的是（）
A.证书主体
B.使用证书的应用和系统
C.证书权威机构
D.AS查看答案
试题参考答案：D
试题解析与讨论：www.cnitpm.com/st/327171009.html
试题3
对于定义在GF(p)上的椭圆曲线,取素数P=11,椭圆曲线y2=x3+x+6mod11,则以下是椭圆曲线11平方剩余的是（ ）。
A.x=1
B.x=3
C.x=6
D.x=9查看答案
试题参考答案：B
试题4
下列关于公钥密码体制说法不正确的是（ ）。
A.在一个公钥密码体制中,一般存在公钥和私钥两个密钥
B.公钥密码体制中仅根据密码算法和加密密钥来确定解密密钥在计算上是可行的
C.公钥密码体制中仅根据密码算法和加密密来确定解密密在计算上是不可行的
D.公钥密码体制中的私钥可以用来进行数字签名查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/389898585.html
试题5
a=17,b=2,则满足a与b取模同余的是（ ）。
A.4
B.5
C.6
D.7查看答案
试题参考答案：B
试题6
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查看答案
试题参考答案：D、C、A、B、A
试题解析与讨论：www.cnitpm.com/st/389944612.html
试题7
Android 是一个开源的移动终端操作系统，共分成Linux 内核层、系统运行库层、应用程序框架层和应用程序层四个部分。显示驱动位于 ( )。
A．Linux内核层
B．系统运行库层
C．应用程序框架层
D．应用程序层查看答案
试题参考答案：A
试题解析与讨论：www.cnitpm.com/st/522834306.html
试题8
依据国家信息安全等级保护相关标准，军用不对外公开的信息系统至少应该属于（）
A、二级及二级以上
B、三级及三级以上
C、四级及四级以上
D、五级查看答案
试题参考答案：C
试题9
IIS是Microsoft 公司提供的Web服务器软件，主要提供Web服务。IIS的访问控制包括：请求过滤、URL 授权控制、IP地址限制、文件授权等安全措施，其中对文件夹的NTFS 许可权限管理属于（ ）。
A．请求过滤
B．URL授权控制
C．IP地址限制
D．文件授权查看答案
试题参考答案：D
试题10
以下有关信息安全管理员职责的叙述，不正确的是（）
A、信息安全管理员应该对网络的总体安全布局进行规划
B、信息安全管理员应该对信息系统安全事件进行处理
C、信息安全管理员应该负责为用户编写安全应用程序
D、信息安全管理员应该对安全设备进行优化配置查看答案
试题参考答案：C
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