Match Each of the Following E-R Structures with Its Relational

question 54

Multiple Choice

Match each of the following E-R structures with its relational representation.
-Create a relation with a composite primary key using the primary keys of the related entities,plus any nonkey attributes of the relationship or associative entity.

• A)regular entity
• B)weak entity
• C)binary or unary 1:1 relationship
• D)binary 1:N relationship
• E)binary or unary M:N relationship or associative entity
• F)binary or unary M:N relationship or associative entity with its own key

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Definitions:

Return On Equity

A measure of a corporation's profitability that reveals how much profit a company generates with the money shareholders have invested.

Du Pont Model

The Du Pont Model is a framework for analyzing a company's return on equity (ROE) by breaking it down into three components: profit margin, asset turnover, and financial leverage.

Net Profit Margin

A profitability metric indicating the percentage of revenue left as net income after all expenses, taxes, and costs have been subtracted.

Return On Assets

Return on assets (ROA) is a profitability ratio that measures how efficiently a company can manage its assets to produce profits during a period, calculated by dividing net income by total assets.