PKI是以公开密钥技术为基础,以数据的机密性、完整性和不可抵赖性为安全目的而构建的()等硬件、软件的综合设施。
A.分析
B.授权
C.加密
D.认证
参考答案:B, C, D
(71) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (72) for designing and constructing an improved system. (73) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (74) 、 (75) is another such technique that integrates data and process concerns into constructs called objects.
(74)应选()。
A.PERT
B.DFD
C.ERD
D.UML
下列各组划线词语意思理解有误的一项是( )。 (3分)
A.至之市(到……去)是吾剑之所从坠(这儿,指示代词)
岁以大穰 (年)人不知而不愠(表转折)
B.私拟作群鹤舞空(比)明察秋毫(眼力)
诲女知之乎(同“汝”,你)方为秋田之害(正)
C.可以为师矣(凭)必有我师焉(在里面)
匠师如其言(按照)患其塔动(担忧)
D.贻以金钗(赠给)二虫尽为所吞(被)学而不厌(满足) 默而识之(记)