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信息安全工程師每日一練試題內(nèi)容（2021/10/16）

試題1： 電子郵件已經(jīng)成為傳播惡意代碼的重途徑之一,為了有效防止電子郵件中的惡意代碼,應(yīng)該用（  ）的方式閱讀電子郵件。
A.應(yīng)用軟件
B.純文本
C.網(wǎng)頁
D.在線
試題解析與討論：www.xomuzic.com/st/3894812738.html
試題參考答案：B

試題2：

病毒的引導(dǎo)過程不包含（）
A、保證計算機(jī)或網(wǎng)絡(luò)系統(tǒng)的原有功能
B、竊取系統(tǒng)部分內(nèi)存
C、使自身有關(guān)代碼取代或擴(kuò)充原有系統(tǒng)功能
D、刪除引導(dǎo)扇區(qū)

試題解析與討論：www.xomuzic.com/st/2849213890.html
試題參考答案：D

試題3： 對于定義在GF(p)上的橢圓曲線,取素數(shù)P=11,橢圓曲線y2=x3+x+6mod11,則以下是橢圓曲線11平方剩余的是（  ）。
A.x=1
B.x=3
C.x=6
D.x=9
試題解析與討論：www.xomuzic.com/st/3898520398.html
試題參考答案：B

試題4： 文件加密就是將重要的文件以密文形式存儲在媒介上，對文件進(jìn)行加密是一種有效的數(shù)據(jù)加密存儲技術(shù)?；赪indows系統(tǒng)的是（  ）。
A. AFS
B. TCFS
C. CFS
D. EFS
試題解析與討論：www.xomuzic.com/st/4110015512.html
試題參考答案：D

試題5： Trust is typically interpreted as a subjective belief in the reliability， honesty and  security  of an entity on which we depend （ ）our welfare .In online environments we depend on a wide spectrun of things , ranging from computer hardware,software and data to people and organizations. A security solution always assumes certain entities function according to specific policies.To trust is precisely to make this sort of assumptions , hence , a trusted entity is the same as an entity that is assumed to function according to  policy . A consequence of this is that a trust component of a system must work correctly in order   for the security of that system to hold, meaning that when a trusted（  ）fails , then the sytems and applications that depend on it can（  ）be considered secure.An often cited articulation of this principle is:＂ a trusted system or component is one that can break your security policy” ( which happens when the trust system fails ). The same applies to a trusted party such as a service provider ( SP for short )that is , it must operate according to the agreed or assumed   policy in order to ensure the expected level of securty and quality of services . A paradoxical   conclusion to be drawn from this analysis is that security assurance may decrease when increasing the number of trusted components and parties that a service infrastructure depends on . This is because the security of an infrastructure consisting of many.
Trusted components typically follows the principle of the weakest link , that is ,in many situations the the overall security can only be as strong as the least reliable or least secure of all the trusted components. We cannot avoid using trusted security components,but the fewer the better. This is important to understand when designing the  identity management architectures,that is, fewer the trusted parties in an identity management model , stronger the security that can be achieved by it.
The transfer of the social constructs of identity and trust into digital and computational concepts helps in designing and implementing large scale online markets and communities,and also plays an important role in the converging mobile and Internet environments.Identity management (denoted Idm hereafter ) is about recognizing and verifying the correctness of identitied in online environment .Trust management becomes a component of （  ）whenever different parties rely on each other for identity provision and authentication . IdM and Trust management therefore depend on each other in complex ways because the correctness of the identity itself must be trusted for the quality and reliability of the corresponding entity to be trusted.IdM is also an essential concept when defining  authorisation policies in personalised services.
Establishing trust always has a cost, so that having  complex trust requirement typically leads to high overhead in establishing the required trust. To reduce costs there will be incentives for stakeholders to “cut corners”regarding trust requirements ,which could lead to inadequate security . The challenge is to design IdM systems with relatively simple trust requirements.Cryptographic mechanisms are often a core component of IdM solutions,for example,for entity and data authentication.With cryptography,it is often possible to propagate trust from where it initially exists to where it is needed .The establishment of initial（  ）usually takes place in the physical world,and the subsequent propagation of trust happens online,often in an automated manner.
（71）A.with
B. on
C. of
D. for
（72）A.entity
B.person
C.component
D.thing
（73）A. No longer
B. never
C. always
D.often
（74）A. SP
B. IdM
C.Internet
D.entity
（75）A.trust
B.cost
C.IdM
D. solution
試題解析與討論：www.xomuzic.com/st/389944612.html
試題參考答案：D、C、A、B、A

試題6： 下面關(guān)于跨站攻擊描述不正確的是（）
A.跨站腳本攻擊指的是惡意攻擊者向Web頁面里插入惡意的Html代碼
B.跨站腳本攻擊簡稱XSS
C.跨站腳本攻擊也可稱作CSS
D.跨站腳本攻擊是主動攻擊
試題解析與討論：www.xomuzic.com/st/3272822356.html
試題參考答案：D

試題7： 網(wǎng)絡(luò)系統(tǒng)中針對海量數(shù)據(jù)的加密,通常不采用（  ）方式。
A.會話加密
B.公鑰加密
C.鏈路加密
D.端對端加密
試題解析與討論：www.xomuzic.com/st/3897318694.html
試題參考答案：B

試題8： S/key口令是一種一次性口令生成方案，它可以對抗（  ）。
A.惡意代碼攻擊
B.暴力分析攻擊
C.重放攻擊
D.協(xié)議分析攻擊
試題解析與討論：www.xomuzic.com/st/3893028320.html
試題參考答案：C

試題9： 數(shù)字簽名是對以數(shù)字形式存儲的消息進(jìn)行某種處理，產(chǎn)生一種類似于傳統(tǒng)手書簽名功效的信息處理過程。數(shù)字簽名標(biāo)準(zhǔn)DSS中使用的簽名算法DSA是基于ElGamal和 Schnorr兩個方案而設(shè)計的。當(dāng)DSA對消息m的簽名驗證結(jié)果為True，也不能說明（  ）。
A、接收的消息m無偽造
B、接收的消息m無篡改
C、接收的消息m無錯誤
D、接收的消息m無泄密
試題解析與討論：www.xomuzic.com/st/4109214951.html
試題參考答案：D

試題10： 2017年11月,在德國柏林召開的第55次ISO/IEC信息安全分技術(shù)委員會(SC27)會議上,我國專家組提出的（  ）算法一致通過成為國際標(biāo)準(zhǔn)。
A.SM2與SM3
B.SM3與SM4
C.SM4與SM9
D.SM9與SM2
試題解析與討論：www.xomuzic.com/st/3895519670.html
試題參考答案：D