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UM0-100 · Question #20

What is a selector of a lifeline?

The correct answer is D. an expression selecting one out of a set; a general indexing mechanism. See the full explanation below for the reasoning.

Question

What is a selector of a lifeline?

Options

  • Aa scheduler that chooses the next lifeline on which to run
  • Ba specific lifeline that selects a resource from a resource pool
  • Ca construct to select one lifeline out of all the lifelines in the diagram
  • Dan expression selecting one out of a set; a general indexing mechanism

How the community answered

(43 responses)
  • A
    14% (6)
  • B
    9% (4)
  • C
    5% (2)
  • D
    72% (31)

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