信息安全工程师每日一练试题（2023/10/28）

2023年10月29日来源：信管网作者:cnitpm

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信息安全工程师每日一练试题内容（2023/10/28）

试题1
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2
有线等效保密协议WEP是IEEE 802.11标准的一部分，其为了实现机密性采用的加密算法是（）
A.DES
B.AES
C.RC4
D.RSA
查看答案
试题参考答案：C
试题解析与讨论：www.cnitpm.com/st/5019913597.html
试题3
数字签名是对以数字形式储存的消息就行某种处理，产生一种类似于传统手书签名功效的消息处理过程，一个数字签名体制通常包括两个部分，（）
A.施加签名和验证签名
B.数字证书和身份认证
C.身份消息加密和解密
D.数字证书和消息摘要
查看答案
试题参考答案：A
试题解析与讨论：www.cnitpm.com/st/3270223694.html
试题4
入侵取证是指通过特定的软件和工具，从计算机及网络系统中提取攻击证据。以下网络安全取证步骤正确的是（）。
A．取证现场保护-证据识别-保存证据-传输证据-分析证据-提交证据
B．取证现场保护-证据识别-传输证据-保存证据-分析证据-提交证据
C．取证现场保护-保存证据-证据识别-传输证据-分析证据-提交证据
D．取证现场保护-证据识别-提交证据-传输证据-保存证据-分析证据
查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/5227922808.html
试题5
网络流量数据挖掘分析是对采集到的网络流量数据进行挖掘，提取网络流量信息，形成网络审计记录。网络流量数据挖掘分析主要包括：邮件收发协议审计、网页浏览审计、文件共享审计、文件传输审计、远程访问审计等。其中文件传输审计主要针对（）协议。
A．SMTP
B．FTP
C．Telnet
D．HTTP
查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/5226824423.html
试题6
SMTP是一种提供可靠有效的电子邮件传输的协议，采用客户服务器的工作方式，在传输层使用TCP协议进行传输。SMTP发送协议中，传送报文文本的指令是（）。
A.HELO
B.HELP
C.SEND
D.DATA
查看答案
试题参考答案：D
试题解析与讨论：www.cnitpm.com/st/5019813386.html
试题7
P2DR模型是一种体现主动防御思想的网络安全模型，该模型中D表示（）。
A. Design（设计）
B. Detection（检测）
C. Defense（防御）
D. Defend（保护）
查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/4111723956.html
试题8
防火墙的安全规则由匹配条件和处理方式两部分组成。当网络流量与当前的规则匹配时，就必须采用规则中的处理方式进行处理。其中，拒绝数据包或信息通过，并且通知信息源该信息被禁止的处理方式是（）。
A. Accept
B. Reject
C. Refuse
D. Drop
查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/411447532.html
试题9
从对信息的破坏性上看，网络攻击可以分为被动攻击和主动攻击，以下属于被动攻击的是( )。
A．拒绝服务
B．窃听
C．伪造
D．中间人攻击
查看答案
试题参考答案：B
试题解析与讨论：www.cnitpm.com/st/5735411369.html
试题10
研究密码破译的科学称为密码分析学。密码分析学中，根据密码分析者可利用的数据资源，可将攻击密码的类型分为四种，其中适于攻击公开密钥密码体制，特别是攻击其数字签名的是（）。
A、仅知密文攻击
B、已知明文攻击
C、选择密文攻击
D、选择明文攻击
查看答案
试题参考答案：C
试题解析与讨论：www.cnitpm.com/st/410878655.html

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