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信息安全工程师每日一练试题内容（2021/10/16）

试题1： 电子邮件已经成为传播恶意代码的重途径之一,为了有效防止电子邮件中的恶意代码,应该用（  ）的方式阅读电子邮件。
A.应用软件
B.纯文本
C.网页
D.在线
试题解析与讨论：www.cnitpm.com/st/3894812738.html
试题参考答案：B

试题2：

病毒的引导过程不包含（）
A、保证计算机或网络系统的原有功能
B、窃取系统部分内存
C、使自身有关代码取代或扩充原有系统功能
D、删除引导扇区

试题解析与讨论：www.cnitpm.com/st/2849213890.html
试题参考答案：D

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
试题解析与讨论：www.cnitpm.com/st/3898520398.html
试题参考答案：B

试题4： 文件加密就是将重要的文件以密文形式存储在媒介上，对文件进行加密是一种有效的数据加密存储技术。基于Windows系统的是（  ）。
A. AFS
B. TCFS
C. CFS
D. EFS
试题解析与讨论：www.cnitpm.com/st/4110015512.html
试题参考答案：D

试题5： 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6： 下面关于跨站攻击描述不正确的是（）
A.跨站脚本攻击指的是恶意攻击者向Web页面里插入恶意的Html代码
B.跨站脚本攻击简称XSS
C.跨站脚本攻击也可称作CSS
D.跨站脚本攻击是主动攻击
试题解析与讨论：www.cnitpm.com/st/3272822356.html
试题参考答案：D

试题7： 网络系统中针对海量数据的加密,通常不采用（  ）方式。
A.会话加密
B.公钥加密
C.链路加密
D.端对端加密
试题解析与讨论：www.cnitpm.com/st/3897318694.html
试题参考答案：B

试题8： S/key口令是一种一次性口令生成方案，它可以对抗（  ）。
A.恶意代码攻击
B.暴力分析攻击
C.重放攻击
D.协议分析攻击
试题解析与讨论：www.cnitpm.com/st/3893028320.html
试题参考答案：C

试题9： 数字签名是对以数字形式存储的消息进行某种处理，产生一种类似于传统手书签名功效的信息处理过程。数字签名标准DSS中使用的签名算法DSA是基于ElGamal和 Schnorr两个方案而设计的。当DSA对消息m的签名验证结果为True，也不能说明（  ）。
A、接收的消息m无伪造
B、接收的消息m无篡改
C、接收的消息m无错误
D、接收的消息m无泄密
试题解析与讨论：www.cnitpm.com/st/4109214951.html
试题参考答案：D

试题10： 2017年11月,在德国柏林召开的第55次ISO/IEC信息安全分技术委员会(SC27)会议上,我国专家组提出的（  ）算法一致通过成为国际标准。
A.SM2与SM3
B.SM3与SM4
C.SM4与SM9
D.SM9与SM2
试题解析与讨论：www.cnitpm.com/st/3895519670.html
试题参考答案：D