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A class B self-test library supplied by a vendor exists to

  • A.demonstrate that core and memory faults would be detected
  • B.measure the power consumption of the application
  • C.provide a bootloader for field updates
  • D.generate the pin multiplexing configuration automatically

Answer: A

Appliance safety standards require the controller to detect its own failures, and the library supplies tested routines that check registers, RAM, flash and the clock. Writing and certifying such tests oneself is a substantial undertaking.

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