Regarding the Three Data Control Issues of Security, Backup and Recovery

question 15

Multiple Choice

Regarding the three data control issues of security, backup and recovery, and concurrency, a database management system _____.

• A) should expect each application programmer to handle them
• B) should expect the operating system to handle them
• C) should expect each systems analyst to handle them
• D) should be responsible for handling all of them
• E) should not be responsible for handling any of them

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Definitions:

Average Variable Cost

The average amount of variable cost per unit, calculated by dividing total variable costs by the quantity of output.

Profit-Maximizing

The approach taken by an enterprise to ascertain the optimal price and output quantity for the highest profit.

MR = MC

A principle in economics stating that profit maximization occurs when marginal revenue equals marginal cost.

Perfectly Competitive Market

An economic theory describing a market where no individual buyers or sellers have the power to influence the price of a product, and where the products offered are homogenous, with no barriers to entry or exit for businesses.