A Level Zero Data Flow Diagram Contains a Rectangle Labeled

question 35

Multiple Choice

A Level Zero data flow diagram contains a rectangle labeled "vendor." Which of the following is most true?

• A) The rectangle does not require a database table.
• B) The rectangle indicates a database with a compound primary key.
• C) The associated database requires a junction table.
• D) The primary key for the indicated database may be a foreign key elsewhere.

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Definitions:

Antibody-Mediated Immunity

A form of immunity that involves the production of antibodies by B cells in response to antigens, playing a crucial role in targeting and neutralizing foreign invaders.

Cell-Mediated Immunity

The aspect of the immune response that involves the activation of certain immune cells to fight off pathogens, rather than the production of antibodies.

B Cell

A type of lymphocyte involved in the immune response by producing antibodies to neutralize pathogenic threats.

Antibodies

Proteins produced by the immune system that recognize and neutralize foreign objects like bacteria and viruses.