Flow, Source, Store, Process
Flow, Process, Source, Store
Flow, Process, Source/Destination, Store
Source, Process, Destination, Store E. None of the above
Answer is Right!
Answer is Wrong!
The correct answer is: B. Flow, Process, Source, Store
A data flow diagram (DFD) is a graphical representation of the flow of data through an information system. It is a tool that can be used to model the system at a high level or in great detail.
The four basic symbols used in a DFD are:
- Data flow: A line with an arrow that represents the movement of data between processes.
- Process: A circle or rectangle that represents a transformation of data.
- Source: An open circle that represents the origin of data.
- Destination: A closed circle that represents the destination of data.
The following is a brief explanation of each option:
- A. Flow, Source, Store, Process: This option is incorrect because it does not include the symbol for a process.
- B. Flow, Process, Source, Store: This option is correct because it includes all four of the basic symbols used in a DFD.
- C. Flow, Process, Source/Destination, Store: This option is incorrect because it includes the symbol for a source/destination, which is not a basic symbol used in a DFD.
- D. Source, Process, Destination, Store: This option is incorrect because it does not include the symbol for a data flow.
- E. None of the above: This option is incorrect because it does not include the correct answer.