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信息安全工程師每日一練試題內(nèi)容(2021/4/28)
試題1: 以下關(guān)于安全套接層協(xié)議(SSL)的敘述中,錯誤的是()
A、是一種應(yīng)用層安全協(xié)議
B、為TCP/IP連接提供數(shù)據(jù)加密
C、為TCP/IP連接提供服務(wù)器認(rèn)證
D、提供數(shù)據(jù)安全機制
關(guān)于信息安全管理,說法錯誤的是:()
A.信息安全管理是管理者為實現(xiàn)信息安全目標(biāo)(信息資產(chǎn)的CIA 等特性,以及業(yè)務(wù)運作的持續(xù))而進(jìn)行的計劃、組織、指揮、協(xié)調(diào)和控制的一系列活動。
B.信息安全管理是一個多層面、多因素的過程,依賴于建立信息安全組織、明確信息安全角色及職責(zé)、制定信息安全方針策略標(biāo)準(zhǔn)規(guī)范、建立有效的監(jiān)督審計機制等多方面非技術(shù)性的努力。
C.實現(xiàn)信息安全,技術(shù)和產(chǎn)品是基礎(chǔ),管理是關(guān)鍵。
D.信息安全管理是人員、技術(shù)、操作三者緊密結(jié)合的系統(tǒng)工程,是一個靜態(tài)過程。
人員入職過程中,以下做法不正確的是?()
A.入職中簽署勞動合同及保密協(xié)議。
B.分配工作需要的最低權(quán)限。
C.允許訪問企業(yè)所有的信息資產(chǎn)。
D.進(jìn)行安全意思培訓(xùn)。
(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
電子郵件是傳播惡意代碼的重要途徑,為了防止電子郵件中的惡意代碼的攻擊,用()方式閱讀電子郵件
A、網(wǎng)頁
B、純文本
C、程序
D、會話
對磁介質(zhì)的最有效好銷毀方法是 ?()
A.格式化
B.物理破壞
C.消磁
D.刪除
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