____ is/are logically impossible in a DFD because a process must act on input, shown by an incoming data flow, and produce output, represented by an outgoing data flow.
A) Spontaneous combustion
B) Gray matter
C) Black holes
D) Black boxes
Correct Answer:
Verified
Q13: In a DFD, the Gane and Sarson
Q14: A data _ is a central storehouse
Q15: _ maintains consistency among DFDs by ensuring
Q16: A DFD shows _.
A)how data are related
B)what
Q17: A spontaneous generation process is a process
Q19: Leveling _.
A)uses a series of increasingly detailed
Q20: A black hole is a process that
Q21: In a data dictionary, _ refers to
Q22: The data dictionary usually records and describes
Q70: Typical process description tools include _.
A) context
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