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State whether the following is true or false.
There is a point beyond which adding instances no longer improves throughput.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: A

A shared database, a lock or a network path eventually becomes the constraint. Finding what saturates first is the whole business of scalability testing. The answer is rarely the component anyone expected before the test was run.

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