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信息安全工程師當(dāng)天每日一練試題地址：www.bjhsdf.com/exam/ExamDay.aspx?t1=6
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信息安全工程師每日一練試題（2026/5/6）在線測試：www.bjhsdf.com/exam/ExamDay.aspx?t1=6&day=2026/5/6
信息安全工程師每日一練試題內(nèi)容（2026/5/6）
試題1
The purpose of file integrity check is to discover whether tampered files or the kernel of the operating system have been replaced in the victim system. For UNIX systems, network administrators can use the ( ) command to directly compare binary files in the system with the corresponding files on the original distribution medium.
A．rmdir
B．scp
C．cmp
D．pwd查看答案
試題參考答案：C
試題2
流通數(shù)據(jù)禁止清單主要針對（ ）數(shù)據(jù)。
A．所有公開的商業(yè)數(shù)據(jù)
B．個人隱私數(shù)據(jù)
C．危害國家安全和社會穩(wěn)定的數(shù)據(jù)
D．僅涉及企業(yè)內(nèi)部管理的數(shù)據(jù)查看答案
試題參考答案：C
試題3
關(guān)于防火墻的主要安全功能指標(biāo)描述不正確的是（ ）
A．DES、RC4、IDEA都是防火墻所能夠支持的加密算法
B．SNMP管理、帶寬管理都不是防火墻所能夠支持的管理方式
C．防火墻所能夠支持的審計方式包括遠程審計和本地審計
D．防火墻所能夠支持的認證類型包括口令方式、數(shù)字證書等查看答案
試題參考答案：B
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查看答案
試題參考答案：B、D、A、A、C
試題5
以下網(wǎng)絡(luò)入侵檢測不能檢測發(fā)現(xiàn)的安全威脅是( )。
A．黑客入侵
B．網(wǎng)絡(luò)蠕蟲
C．非法訪問
D．系統(tǒng)漏洞查看答案
試題參考答案：D
試題6
拒絕服務(wù)攻擊主要是利用資源的（ ）以及分配策略的漏洞，長期占用有限資源不釋放，使其他用戶得不到應(yīng)得服務(wù)。
A．可控性
B．有限性
C．可用性
D．完整性查看答案
試題參考答案：B
試題7
通用入侵檢測框架模型（CIDF）由事件產(chǎn)生器、事件分析器、響應(yīng)單元和事件數(shù)據(jù)庫四個部分組成。其中向系統(tǒng)其他部分提供事件的是（ ）
A．事件產(chǎn)生器
B．事件分析器
C．響應(yīng)單元
D．事件數(shù)據(jù)庫查看答案
試題參考答案：A
試題8
以下對OSI（開放系統(tǒng)互聯(lián)）參考模型中數(shù)據(jù)鏈路層的功能敘述中，描述最貼切是( )
A、保證數(shù)據(jù)正確的順序、無差錯和完整
B、控制報文通過網(wǎng)絡(luò)的路由選擇
C、提供用戶與網(wǎng)絡(luò)的接口
D、處理信號通過介質(zhì)的傳輸查看答案
試題參考答案：A
試題9
下圖是（ ）的原理圖
A．單向認證
B．雙向認證
C．多向認證
D．第三方認證查看答案
試題參考答案：A
試題10
交換機是構(gòu)成網(wǎng)絡(luò)的基礎(chǔ)設(shè)備，主要功能是負責(zé)網(wǎng)絡(luò)通信數(shù)據(jù)包的交換傳輸。交換機根據(jù)功能變化分為五代，其中第二代交換機又稱為以太網(wǎng)交換機，其工作于OSI（開放系統(tǒng)互連參考模型）的 ( ) 。
A．物理層
B．?dāng)?shù)據(jù)鏈路層
C．網(wǎng)絡(luò)層
D．應(yīng)用層查看答案
試題參考答案：B
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