Multiple choice Which of the following is not correct regarding Data Flow Diagram? Two external agents in the system cannot be connected directly in a system. External agent and data store cannot be connected directly in a system. Two data store can be connected directly in a system. Data flow diagram are used to show the transformation of information. All basic notations should be properly connected with data flow then it will leads to specification error. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Two data store cannot be connected to each other therfore it is the correct answer.