Introduction to Database System Data security threats include hardware failure privacy invasion all of the listed here fraudulent manipulation of data hardware failure privacy invasion all of the listed here fraudulent manipulation of data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: candidate keys. composite keys. foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches None of these All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? One-to-Many Relationship One-to-One Relationship Composite Relationship Many-to-Many Relationship One-to-Many Relationship One-to-One Relationship Composite Relationship Many-to-Many Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS all of the listed here each user can access every sub¬schema each user can "see" only a small part of the entire database each subschema contains every field in the logical schema all of the listed here each user can access every sub¬schema each user can "see" only a small part of the entire database each subschema contains every field in the logical schema ANSWER DOWNLOAD EXAMIANS APP
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