A Primary Key in a Database Is a ________

question 69

Multiple Choice

A primary key in a database is a ________.

• A)group of rows that identifies a unique table or file
• B)column or group of columns that identifies a unique row in a table
• C)group of fields or columns that represent metadata
• D)group of tables or files formed to identify a unique field or row

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Definitions:

Monocoque Construction

A type of vehicle construction in which the body is integrated with the chassis as a single unit, providing increased strength and reduced weight.

Landing Gear

The undercarriage of an aircraft or spacecraft, designed for use during the landing or launch phase.

Dolly Legs

refer to the retractable supports found on trailers or towed vehicles that stabilize and hold the front of the trailer when it is not attached to a towing vehicle.

Performance Standards

Specified criteria that set the expectations for the functionality and effectiveness of a product, service, or system.