信息安全工程师每日一练试题（2025/3/10）
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信息安全工程师每日一练试题内容（2025/3/10）
试题1
为了应对网络威胁，人为划分若干安全区域，下列不属于安全区域的是（ ）
A．外联网
B．公共外部网络
C．军事缓冲区
D．日常网络区域查看答案
试题参考答案：D
试题2
一个Kerberos系统涉及四个基本实体，其中（ ）是识别用户身份并提供TGS会话密钥。
A．Kerberos客户机
B．认证服务器（AS）
C．票据发放服务器（TGS）
D．应用服务器查看答案
试题参考答案：D
试题3
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4
访问控制的正确步骤是（ ）
①分析管理资产的安全需求；②制定访问控制策略；③明确访问控制管理的资产
④建立用户访问身份认证系统；⑤根据用户类型授权用户访问资产；
⑥及时调整访问策略；⑦运行和维护访问控制系统
A．①②③④⑤⑥⑦
B．③①②④⑤⑦⑥
C．①②③⑥④⑤⑦
D．①③②④⑥⑤⑦查看答案
试题参考答案：B
试题5
网络安全等级保护工作主要包括定级、备案、（ ）、等级测评、监督检查五个阶段。
A．安全策略
B．建设整改
C．分类控制
D．应急处置查看答案
试题参考答案：B
试题6
WPDRRC模型模型蕴涵的网络安全能力不包括（ ）
A．预警能力
B．保护能力
C．反击能力
D．制裁能力查看答案
试题参考答案：D
试题7
云计算平台物理安全威胁的一个典型例子是（ ）
A．云服务API接口不安全
B．虚拟机逃逸
C．数据中心被雷电击中
D．跨虚拟机侧信道攻击查看答案
试题参考答案：C
试题8
（ ）的产品特点是部署在不同安全域之间，解析和过滤经过防火墙的数据流，集成应用识别和管控、恶意代码防护、入侵防护、事件关联等多种安全功能，同时具备网络层和应用层访问控制及过滤功能的网络安全产品。
A．网络防火墙
B．数据库防火墙
C．主机防火墙
D．下一代防火墙查看答案
试题参考答案：D
试题9
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10
电子政务网络由政务内网和政务外网构成，两网之间（ ），政务外网与互联网之间（ ）。
A．逻辑隔离，物理隔离
B．物理隔离，逻辑隔离
C．虚拟隔离，时间隔离
D．时间隔离，虚拟隔离查看答案
试题参考答案：B
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