2024年08月17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（2024/8/16）
试题1
下列技术中，不能预防重放攻击的是（）。查看答案
试题参考答案：C
试题2
基于MD4和MD5设计的S/Key口令是一种一次性口令生成方案，它可以对访问者的身份与设备进行综合验证，该方案可以对抗（ ）。查看答案
试题参考答案：C
试题3
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（ ）查看答案
试题参考答案：C
试题4
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（） 。查看答案
试题参考答案：D
试题5
SHAI算法的消息摘要长度是（）位查看答案
试题参考答案：B
试题6
针对电子邮件的安全问题，人们利用PGP(Pretty Good Privacy)来保护电子邮件的安全。以下有关PGP的表述，错误的是( )。查看答案
试题参考答案：D
试题7
为防范国家数据安全风险，维护国家安全，保护公共利益，2021年7月，中国网络安全审查办公室发布公告，对“滴滴出行”“运满满”“货车帮”和“BOSS直聘”开展网络安全审查。此次审查依据的国家相关法律法规是（ ）。查看答案
试题参考答案：A
试题8
一个密码系统如果用E表示加密运算，D表示解密运算，M表示明文,C表示密文,则下面描述必然成立的是（ ）。查看答案
试题参考答案：B
试题9
以下不属于代码静态分析的方法是（）。查看答案
试题参考答案：A
试题10
Perhaps the most obvious difference between private-key and public-key encryption is that the former assumes complete secrecy of all cry to graphic keys, whereas the latter requires secrecy for only the private key.Although this may seem like a minor distinction ,the ramifications are huge: in the private-key setting the communicating parties must somehow be able to share the (71) key without allowing any third party to learn it, whereas in the public-key setting the (72) key can be sent from one party to the other over a public channel without compromising security.For parties shouting across a room or, more realistically , communicating over a public network like a phone line or then ternet, public-key encryption is the only option.
Another important distinction is that private-key encryption sch emesuse the (73) key for both encryption and decryption, whereas public key encryption schemes use (74) keys for each operation.That is public-key encryption is inherently as ymmetri C．This asymmetry in the public-key setting means that the roles of sender and receiver are not interchangeable as they are in the private-key setting; a single key-pair allows communication in one direction only.(Bidirectional communication can be achieved in a number of ways; the point is that a single invocation of a public-key encryption scheme forces ad is tinction between one user who acts as a receiver and other users who act as senders.)。In addition, a single instance of a (75) encryption scheme enables multiple senders to communicate privately with a single receiver,in contrast to the private-key case where a secret key shared between two parties enables private communication only between those two parties.
(1) A．main
B．same
C．public
D．secret
(2) A．stream
B．different
C．public
D．secret
(3) A．different
B．same
C．public
D．private
(4) A．different
B．same
C．public
D．private
(5) A．private-key
B．public-key
C．stream
D．Hash
查看答案
试题参考答案：D、C、B、A、B
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