Introduction to Database System If a piece of data is stored in two places in the database, then storage space is wasted None of these changing the data is one spot will cause data inconsistency it can be more easily accessed both (a) and (b) storage space is wasted None of these changing the data is one spot will cause data inconsistency it can be more easily accessed both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following hardware components is the most important to the operation of a database management system? printer high speed, large-capacity disk high-resolution video display plotter printer high speed, large-capacity disk high-resolution video display plotter ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following indicates the maximum number of entities that can be involved in a relationship? Greater Entity Count (GEC) Maximum cardinality Minimum cardinality ERD Greater Entity Count (GEC) Maximum cardinality Minimum cardinality ERD ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The only reason for the existence of relations is to store instances of functional dependencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have no records with the same value in the common field they have a field in common they have a row in common None of these both (b) and (c) they have no records with the same value in the common field they have a field in common they have a row in common None of these both (b) and (c) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove a table from the database in SQL? DROP TABLE DELETE TABLE ERASE TABLE UNATTACH TABLE DROP TABLE DELETE TABLE ERASE TABLE UNATTACH TABLE ANSWER DOWNLOAD EXAMIANS APP
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