A Relationship Between Skills and Employees Is Typically Modeled as M:N

question 43

Multiple Choice

A relationship between Skills and Employees is typically modeled as M:N in an REA database model since

• A)one employee may possess many skills,and one skill may be possessed by more than one employee.
• B)many employees possess skills,and many skills are possessed by employees.
• C)employees can be trained to learn all skills,and all skills are possessed by at least one employee.
• D)The relationship would be 1:N not M:N,because most employees are hired for a specific job that requires a specific skill,even though a specific job could be done by many employees.

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Definitions:

T-tubules

Extensions of the cell membrane that penetrate into the centre of skeletal and cardiac muscle cells, facilitating the transmission of electrical impulses.

Microtubules

Cylindrical structures found in nearly all eukaryotic cells, involved in cell shape, division, and movement as well as intracellular transport.

Acetylcholine

A neurotransmitter in the central and peripheral nervous systems that plays a key role in muscle contraction and many other bodily functions.

Glutamate

An important neurotransmitter in the brain that plays a key role in learning, memory, and regulation of the nervous system.