Examlex
-In the accompanying figure,the items marked C represent ____.
Redundancy
The inclusion of extra components or systems that are not strictly necessary, to provide backup in case of failure.
Primary Key
A unique identifier for each record in a database table, ensuring no two rows have the same key.
Employee Table
A structured arrangement of data often in rows and columns that pertains to employees.
Social Security Number
A nine-digit number issued to U.S. citizens, permanent residents, and temporary working residents that tracks individuals for Social Security and tax purposes.
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