Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Data field None of the listed here Characters Bits Data field None of the listed here Characters Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a database administrator's function? performance monitoring database design backing up the database All of the listed here performance monitoring database design backing up the database All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): transitive dependency. referential integrity constraint. insertion anomaly. normal form. transitive dependency. referential integrity constraint. insertion anomaly. normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run None of these if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run None of these if high, reduces processing efficiency for sequential and nonsequential files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The purpose of a database is to help people stop using spreadsheets. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type of related to a single-entity instance of another type? Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship ANSWER DOWNLOAD EXAMIANS APP
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