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信息安全工程師每日一練試題（2025/10/20）

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信息安全工程師每日一練試題內(nèi)容（2025/10/20）

試題1
SSL協(xié)議是對(duì)稱(chēng)密碼和公鑰密碼技術(shù)相結(jié)合的協(xié)議，該協(xié)議不能提供的安全服務(wù)是（）
A.保密性
B.可用性
C.完整性
D.可認(rèn)證性
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試題參考答案：B
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題2
PKI是一種標(biāo)準(zhǔn)的公鑰密碼密鑰管理平臺(tái)。在PKI中，認(rèn)證中心CA是整個(gè)PKI體系中各方都承認(rèn)的一個(gè)值得信賴(lài)的、公正的第三方機(jī)構(gòu)。CA的功能不包括（）。
A.證書(shū)的頒發(fā)
B.證書(shū)的審批
C.證書(shū)的加密
D.證書(shū)的備份
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試題參考答案：C
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題3
PKI中撤銷(xiāo)證書(shū)是通過(guò)維護(hù)一個(gè)證書(shū)撤銷(xiāo)列表CRL來(lái)實(shí)現(xiàn)的。以下不會(huì)導(dǎo)致證書(shū)被撤銷(xiāo)的是（）。
A.密鑰泄漏
B.系統(tǒng)升級(jí)
C.證書(shū)到期
D.從屬變更
查看答案
試題參考答案：B
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題4
Symmetric-key cryptosystems use the（） key for encryption and decryption of a message,though a message or group of messages may have a different key than others. A significant disadvantage of symmetric ciphers is the key management necessary to use them securely.Each distinct pair of communicating parties must, ideally, share a different key, and perhaps each ciphertext exchanged as well. The number of keys required increases as the square of the number of network members,which very quickly requires complex key management schemes to keep them all straight and secret. The difficulty of securely establishing a secret（）between two communicating parties, when a secure channel doesn't already exist between them, also presents a chicken-and-egg problem which is a considerable practical obstacle for cryptography users in the real world.
Whitfield Dif?ie and Martin Hellman, authors of the first paper on public-key cryptography.
In a groundbreaking 1976 paper, Whitfield Diffie and Martin Hellman proposed the notion of public-key (also, more generally, called asymmetric key) cryptography in which two different but mathematically related keys are used-a public key and a private key. A public key system is so constructed that calculation of one key (the private key) is computationally infeasible（）the other (the public key), even though they are necessarily related. Instead, both keys are generated secretly, as an interrelated pair. The historian David Kahn described public-key cryptography as “the most revolutionary new concept in the field since poly-alphabetic substitution emerged in the Renaissance”.
In public-key cryptosystems,the（）key may be freely distributed,while its paired private key must remain secret. The public key is typically used for encryption, while the private or secret key is used for decryption. Diffie and Hellman showed that public-key cryptography was possible by presenting the Diffie-Hellman key exchange protocol.
In 1978, Ronald Rivest, Adi Shamir, and Len Adleman invented（）,another public-key system.
In 1997, it finally became publicly known that asymmetric key cryptography had been invented by James H. Ellis at GCHQ,a British intelligence organization, and that, in the early 1970s,both the Diffie-Hellman and RSA algorithms had been previously developed(by Malcolm J. Williamson and Clifford Cocks, respectively).
(1) A. different
B. same
C.public
D. private
(2)A. plaintext
B. stream
C.ciphertext
D.key
(3)A.from
B. in
C.to
D.of
(4)A.public
B.private
C.symmetric
D.asymmetric
(5) A.DES
B.AES
C.RSA
D.IDEA
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試題參考答案：B、D、A、A、C
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題5
訪問(wèn)控制機(jī)制是由一組安全機(jī)制構(gòu)成，可以抽象為一個(gè)簡(jiǎn)單模型，以下不屬于訪問(wèn)控制模型要素的是()。
A．主體
B．客體
C．審計(jì)庫(kù)
D．協(xié)議
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試題參考答案：D
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題6
典型的水印攻擊方式包括:魯棒性攻擊、表達(dá)攻擊、解釋攻擊和法律攻擊.其中魯棒性攻擊是指在不損害圖像使用價(jià)值的前提下減弱、移去或破壞水印的一類(lèi)攻擊方式.以下不屬于魯棒性攻擊的是（）。
A.像素值失真攻擊
B.敏感性分析攻擊
C.置亂攻擊
D.梯度下降攻擊
查看答案
試題參考答案：C
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題7

特洛伊木馬攻擊的威脅類(lèi)型屬于（）
A、授權(quán)侵犯威脅
B、滲入威脅
C、植入威脅
D、旁路控制威脅
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試題參考答案：C
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題8
Oracle數(shù)據(jù)庫(kù)建立數(shù)據(jù)庫(kù)保險(xiǎn)庫(kù)（DV）機(jī)制，該機(jī)制用于保護(hù)敏感數(shù)據(jù)，具有防止數(shù)據(jù)系統(tǒng)未授權(quán)變更、多因素可信授權(quán)、職麥隔高、最小化特權(quán)的功能。DV機(jī)制通過(guò)設(shè)置（）對(duì)特權(quán)進(jìn)行控制。
A．透明數(shù)據(jù)加密和數(shù)據(jù)屏蔽
B．多級(jí)認(rèn)證和數(shù)據(jù)庫(kù)管理員
C．強(qiáng)認(rèn)證和網(wǎng)絡(luò)認(rèn)證
D．安全域和命令規(guī)則
查看答案
試題參考答案：D
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題9
操作系統(tǒng)審計(jì)一般是對(duì)操作系統(tǒng)用戶(hù)和系統(tǒng)服務(wù)進(jìn)行記錄，主要包括用戶(hù)登錄和注銷(xiāo)、系統(tǒng)服務(wù)啟動(dòng)和關(guān)閉、安全事件等。Linux操作系統(tǒng)自帶審計(jì)功能，其中日志文件wtmp是（）。
A．當(dāng)前用戶(hù)登錄日志
B．用戶(hù)登錄和退出日志
C．用戶(hù)命令操作日志
D．最近登錄日志
查看答案
試題參考答案：B
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20
試題10
按照《計(jì)算機(jī)場(chǎng)地通用規(guī)范（GB／T2887-2011）》的規(guī)定，計(jì)算機(jī)機(jī)房分為四類(lèi)：主要工作房間、第一類(lèi)輔助房間、第二類(lèi)輔助房間和第三類(lèi)輔助房間。以下屬于第一類(lèi)輔助房間的是（）。
A．終端室
B．監(jiān)控室
C．資料室
D．儲(chǔ)藏室
查看答案
試題參考答案：B
試題解析與討論：m.conferencecallsmadeeasy.com/exam/ExamDay.aspx?t1=6&day=2025/10/20

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