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NECO 2018 DATA PROCESSING QUESTIONS AND ANSWERS
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👑 2018 JUNE/JULY NECO DATA PROCESSING ANSWERS👑
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Database security refers to protective digital privacy measures that are applied to prevent unauthorized access to computer, databases and websites
(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
(i)Physical data model
(ii)Conceptual data model
(iii)Canonical data model
(iv)Application data model
Physical data model:-Physical data models describe how data is stored in the computer, representing information such as record structures, record ordering and access paths. it also represents how the model will be built in the database.
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