A Discrete Unit of Work That Must Be Processed Completely

question 147

Multiple Choice

A discrete unit of work that must be processed completely or not at all within a computer system is called a:

• A) change control device.
• B) transaction.
• C) before image.
• D) journalizing facility.

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Definitions:

Sodium Channels

Specialized protein molecules in cell membranes that allow the passage of sodium ions into and out of the cell, playing a crucial role in generating and conducting electrical signals.

Graded Potentials

Changes in electrical charge across the cell membrane that vary in size and are not propagated in an all-or-none manner.

Channels

Structures or means through which substances or signals are able to pass or be conveyed in a biological system.

Channels

Pathways or conduits through which substances such as ions or molecules can move across cell membranes or within the body or an organism.