The ________ Is Not Necessarily Unique for the Records in a Database

question 27

Multiple Choice

The ________ is not necessarily unique for the records in a database table,but is nonetheless often used to locate a particular record:

• A)Foreign key
• B)Data dictionary
• C) Relationships link bit
• D) Index file

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Definitions:

Antigen

A substance that, when introduced into the body, triggers an immune response.

Antibody

A protein produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.

Antibody

A protein produced by the immune system that recognizes and binds to foreign substances (antigens) to neutralize them.

Antigen

A substance that when introduced into the body stimulates an immune response, especially the production of antibodies.