Introduction to Database System The highest level in the hierarchy of data organization is called database data record data bank data file database data record data bank data file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes record relationships All of these data elements None of these records and files record relationships All of these data elements None of these records and files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Composite identifiers consist of two or more attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. domain/key normal form. third normal form. fourth normal form. second normal form. domain/key normal form. third normal form. fourth normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. False True False True ANSWER DOWNLOAD EXAMIANS APP
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