Neco 2018 Data Processing (Objective and Essay) Answers – June/July Expo
WELCOME TO AYOSTUFFS BEST EXAM EVER PORTALS ============≠==≠================ KEEP REFRESHING IN EVERY 5MIN ================================ Data-Obj 1 D D C E B B E A A B 11 D D C C B E B D E C 21 D B D A A E C D E B 31 B A B B A E A E D E 41 D D C B A E D A C D 51 C C B D A A B A E E COMPLETED ================================== DATA PROCESSING (1a) Database security refers to protective digital privacy measures that are applied to prevent unauthorized access to computer, databases and websites (1aii) (i) Database security ensure that physical damage to the server doesn't result in the loss of data (ii) Database security block attacks from unauthorised users or hackers. this prevents the loss of sensitive information (iii) Database security prevent malware infections and stop viruses stealing data (1bi) (i) Physical data model (ii) Conceptual data model (iii) Canonical data model (iv) Application data model (1bii) Physical data model: Physical data models describe...