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信息安全工程師每日一練試題內容(2022/8/22)
試題1
特洛伊木馬攻擊的威脅類型屬于()
A、授權侵犯威脅
B、滲入威脅
C、植入威脅
D、旁路控制威脅
查看答案
試題參考答案:C
試題2
屬于對稱加密算法。查看答案
試題參考答案:B
試題3
雪崩效應指明文或密鑰的少量變化會引起密文的很大變化。下列密碼算法中不具有雪崩效應的是()查看答案
試題參考答案:D
試題4
下列關于公鑰體制中說法不正確的是()查看答案
試題參考答案:B
試題5
信息通過網絡進行傳輸?shù)倪^程中,存在著被慕改的風險,為了解決這一安全隱患通常采用的安全防護技術是( )。查看答案
試題參考答案:C
試題6
計算機取證主要是對電子證據的獲取、分析、歸檔和描述的過程,而電子證據需要在法庭上作為證據展示,進行計算機取證時應當充分考慮電子證據的真實性和電子證據的證明力,除了相關準備之外,計算機取證步驟通常不包括()查看答案
試題參考答案:D
試題7
包過濾技術防火墻在過濾數(shù)據包時,一般不關心( )。查看答案
試題參考答案:D
試題8
(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
試題參考答案:D、A、C、B、A
試題9
利用公開密鑰算法進行數(shù)據加密時,采用的方式是( )。查看答案
試題參考答案:C
試題10
Diffie-Hellman密鑰交換協(xié)議是一種共享秘鑰的方案,該協(xié)議是基于求解( )的困難性。查看答案
試題參考答案:B
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