● 信息安全的基本要素包括真實性、機密性、不可抵賴性、可審査性等方面。建立有效的責任機制，防止用戶否認其行為屬于（  ）。

（21）A．真實性

B.機密性

C.不可抵賴性

D.可審査性

● 假設某高校信息統一管理平臺的使用人員分為學生、教師和行政管理人員3類.那么用戶權限管理的策略適合采用（  ）。

（22）A．建立用戶角色井授叔

B.對關系進行分解,每類人員對應一組關系

C.建立每類人員的視圖井授權給每個人

D.針對所有人員建立用戶名井授權

● 軟件著作權的保護對象不包括（  ）。

（23）A．源程序

B.目標程序

C.流程圖

D.算法思想

● 某公司員工趙忻是一名軟件設計師，按公司規定編寫軟件文檔需要上交公司存檔。這些軟件文檔屬于職務作品，（  ）。

（24）A．A,其著作權由公司享有

B.其著作權由軟件設計師享有

C.除其署名權以外,著作權的其它權利由軟件設計師享有

D.其著作權由公司和軟件設計師共同享有

● Because the Internet（  ） computers all over the world, any business that engages in electronic commerce instantly becomes an international business. One of the key issues that any company faces when it conducts international commerce is trust.

It is important for all businesses to establish（  ）relationships with their customers.Companies with established reputations in the physical world often create trust by ensuring that customers know who they are. These businesses can rely on their（  ）brand names to create trust on the Web. New companics that want to establish online businesses face a more diffcult（  ）_ because a kind of anonymity(匿名) exists for companies trying to establish a Web presence.

Because Web site visitors will not become customers unless they trust the company behind the site, a plan for establishing（  ） is essential. Customers' inherent lack of trust in“strangers" on the Web is logical and to be expected; sellers on the Web cannot assume thatvisitors will know that the site is operated by a tnustworthy business.

（25）A． establishes

B. includes

C. engages

D. connects

（26）A． accepting

B. trusting

C. believing

D. real

（27）A． own

B. registered

C. established

D. online

（28）A． debate

B. problem

C. way

D. challenge

（29）A． credibility

B. infrastructure

C. quality

D. capability

● 在TCP/IP體系結構中，將IP地址轉化為MAC地址的協議是(   ) 。

（30）A． RARP

B. ARP

C. ICMP

D. TCP

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