In a data flow diagram, an external entity symbol portrays a source or a destination of data outside the system.
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Q7: Internal entities are those persons, places, or
Q8: The following symbol represents a manual process
Q9: The following symbol represents a document.
Q10: The following symbol represents a computer process.
Q10: System flowcharts use only four symbols.
Q13: In a data flow diagram, two parallel
Q14: A context diagram is a top-level diagram
Q14: Internal entities are those entities inside the
Q15: Data flow diagrams portray a business processes'
Q17: The advantage of a physical data flow
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