2024年07月07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（2024/7/6）
试题1
Kerberos是一种常用的身份认证协议,它采用的加密算法是（ ）。查看答案
试题参考答案：B
试题2
ISO制定的安全体系结构描述了5种安全服务，以下不属于这5种安全服务的是（）查看答案
试题参考答案：B
试题3
通过网络传播法律法规禁止的信息，炒作敏感问题并危害国家安全、社会稳定和公众利益的事件，属于（ ）。查看答案
试题参考答案：A
试题4
无线局域网鉴别和保密体系WAPI是一种安全协议，也是我国无线局域网安全强制性标准，以下关于WAPI的描述中，正确的是（ ）。查看答案
试题参考答案：A
试题5
（1）is the science of hiding information. Whereas the goal of cryptography is to make data unreadable by a third party. the goal of steganography is to hide the data from a third party. In this article, I will discuss what steganography is, what purposes it serves, and will provide an example using available software.
There are a large number of steganographic （2）that most of us are familiar with (especially if you watch a lot of spy movies), ranging from invisible ink and microdots to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication. With computers and networks, there are many other ways of hiding informations, such as:
Covert channels (c,g, Loki and some distributed denial-of-service tools use the Internet Control （3）Protocol, or ICMP, as the communication channel between the “bad guy”and a compromicyed system)
Hidden text within Web pages
Hiding files in “plain sight”(c,g. what better place to “hide”a file than with an important sounding name in the c:\winnt system32 directory)
Null ciphers(c,g, using the first letter of each word to form a hidden message in an otherwise innocuous text)
steganography today, however, is significantly more （4）than the example about suggest, allowing a user to hide large amounts of information within image and audio. These forms of steganography often are used in conjunction with cryptography so the information is double protected; first it is encrypted and then hidden so that an advertisement first. find the information ( an often difficult task in and of itself) and the decrypted it.
The simplest approach to hiding data within an image file is called （5）signature insertion. In this method, we can take the binary representation of the hidden data and the bit of each byte within the covert image. If we are using 24-bit color the amount and will be minimum and indiscriminate to the human eye.
（1）A、Cryptography
B、Geography
C、Stenography
D、Steganography
（2）A、methods
B、software
C、tools
D、services
（3）A、Member
B、Management
C、Message
D、Mail
（4）A、powerful
B、sophistication
C、advanced
D、easy
（5）A、least
B、most
C、much
D、less
查看答案
试题参考答案：D、A、C、B、A
试题6
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（）查看答案
试题参考答案：A
试题7
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（ ）。查看答案
试题参考答案：C
试题8
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9
僵尸网络是指采用一种或多种传播手段， 将大量主机感染bot程序， 从而在控制者和被感染主机之间形成的一个可以一对多控制的网络。以下不属于低尸网络传播过程常见方式的是（）查看答案
试题参考答案：C
试题10
以下关于认证和加密的表述中，错误的是（）查看答案
试题参考答案：C
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