Introduction to Database System In an enterprise-class database system, business users interact directly with database applications, which directly access the database data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file if high, reduces processing efficiency for sequential and nonsequential files None of these is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files None of these is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attributes A and B determine attribute C, then it is also true that: A → C is a determinant. (A,B) is a composite determinant. B → A → C is a determinant. (A,B) is a composite determinant. B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Any table that meets the definition of a relation is said to be in first normal form. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not the responsibility of the utilities component of DBMS software? creating the physical and logical designs None of these creating and maintaining the data dictionary removing flagged records for deletion monitoring performance creating the physical and logical designs None of these creating and maintaining the data dictionary removing flagged records for deletion monitoring performance ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Entities Relationships Primary keys Attributes Entities Relationships Primary keys Attributes ANSWER DOWNLOAD EXAMIANS APP
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