Which of the Following Data Flow Diagram (DFD) Symbols Is

question 66

Multiple Choice

Which of the following data flow diagram (DFD) symbols is represented by two parallel lines?

• A) data flow symbol
• B) external entity symbol
• C) internal entity symbol
• D) data store symbol

---

Definitions:

Comparative Advantage

The ability of a country or firm to produce a particular good or service at a lower opportunity cost than its competitors.

Absolute Advantage

The ability of an entity to produce more of a good or service with the same amount of resources than another entity.

Opportunity Cost

The price paid for not selecting the best available alternative when deciding.

Bushel

A unit of volume that is used primarily in the United States to measure agricultural commodities, equivalent to approximately 35.24 liters.