信息安全工程师每日一练试题（2023/1/2）
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信息安全工程师每日一练试题内容（2023/1/2）
试题1
Snort是一款开源的网络入侵检测系统，它能够执行实时流量分析和IP协议网络的数据包记录。以下不属于Snort配置模式的是（ ）。
A.嗅探
B.包记录
C.分布式入侵检测
D.网络入侵检测查看答案
试题参考答案：C
试题2
在使用复杂度不高的口令时，容易产生弱口令的安全脆弱性，被攻击者利用从而破解用户账户，下列设置的口令中，（）具有最好的口令复杂度。
A.morrison
B.Wm.S*F2m5@
C.27776394
D.wangjing1977查看答案
试题参考答案：B
试题3
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4
重放攻击是指攻击者发送一个目的主机已接收过的包，来达到欺骗系统的目的。下列技术中，不能抵御重放攻击的是（）.
A.序号
B.明文填充
C.时间戳
D.Nonce查看答案
试题参考答案：B
试题5
计算机系统的安全级别分为四级：D、C（C1、C2）、B（B1、B2、B3）和A。其中被称为选择保护级的是（）
A. C1
B. C2
C. B1
D. B2查看答案
试题参考答案：A
试题6
对无线网络的攻击可以分为:对无线接口的攻击、对无线设备的攻击和对无线网络的攻击。以下属于对无线设备攻击的是（ ）。
A.窃听
B.重放
C.克隆
D.欺诈查看答案
试题参考答案：C
试题解析与讨论：www.cnitpm.com/st/389749823.html
试题7
根据密码分析者可利用的数据资源来分类，可将密码攻击的类型分为四类，其中密码分析者能够选择密文并获得相应明文的攻击密码的类型属于（）.
A.仅知密文攻击
B.选择密文攻击
C.已知密文攻击
D.选择明文攻击查看答案
试题参考答案：B
试题8
拒绝服务攻击是指攻击者利用系统的缺陷，执行一些恶意的操作，使得合法的系统用户不能及时得到应得的服务或系统资源。以下给出的攻击方式中，不属于拒绝服务攻击的是（ ）
A．SYN Flood
B．DNS放大攻击
C．SQL注入
D．泪滴攻击查看答案
试题参考答案：C
试题9
已知DES算法S盒如下：
如果该S盒的输入为010001，其二进制输出为（ ）
A．0110
B．1001
C．0100
D．0101查看答案
试题参考答案：C
试题解析与讨论：www.cnitpm.com/st/522374736.html
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
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