DFD Quiz

What does DFD stand for?

• A) Data Format Diagram

• B) Data Flow Diagram

• C) Data Function Diagram

• D) Data Field Diagram

Which of the following is NOT a component of a DFD?

• A) Process

• B) Data Store

• C) Data Flow

• D) Hardware

In a DFD, what does a circle typically represent?

• A) Data Store

• B) Data Flow

• C) External Entity

• D) Process

What symbol is used to represent data flow in a DFD?

• A) Square

• B) Circle

• C) Arrow

• D) Triangle

Which of the following represents an external entity in a DFD?

• A) Rectangle

• B) Circle

• C) Arrow

• D) Data Store

What type of diagram helps visualize how data moves through a system?

• Flowchart

• Data Flow Diagram

• Entity-Relationship Diagram

• Use Case Diagram

What is the purpose of a DFD?

• To show how processes are executed

• To visualize the flow of data within a system

• To depict the physical layout of a system

• To list system requirements

In a DFD, what does a double-lined rectangle represent?

• Process

• Data Store

• External Entity

• Data Flow

Which level of DFD provides a high-level overview of a system?

• Level 0 DFD

• Level 1 DFD

• Level 2 DFD

• Context Diagram

What is the main purpose of breaking down a Level 0 DFD into Level 1 DFD?

• To show the flow of data in real-time

• To provide more detailed information about processes

• To eliminate unnecessary data