Introduction to Database System Large collections of files are called None of these databases file system fields records None of these databases file system fields records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as a general collection of data items a single data item None of these a random collection of data items an orderly collection of data items a general collection of data items a single data item None of these a random collection of data items an orderly collection of data items ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes records and files record relationships None of these All of these data elements records and files record relationships None of these All of these data elements ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for None of these improving data integrity protecting data in data communication systems All of these reducing storage space requirements None of these improving data integrity protecting data in data communication systems All of these reducing storage space requirements ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The functional dependency R → S means that the value of S can be determined when we are given a value of R. True False True False ANSWER DOWNLOAD EXAMIANS APP
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