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Match the symbol used in DFD with their function.

5235Medium DSSSB TGT Computer Science 0 replies 0 views
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Match the symbol used in DFD with their function.

Figure for question 20

  • A1-iv, 2-iii, 3-i, 4-ii
  • B1-ii, 2-iii, 3-i, 4-ii
  • C1-iv, 2-i, 3-iii, 4-ii
  • D1-i, 2-iii, 3-iv, 4-ii
Correct answer: A

Explanation

Rectangle = external entity (iv), two parallel lines = data store (iii), open-sided shape = output (i), circle = process (ii).
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