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A page fault

  • A.is an error is a specific page
  • B.occurs when a program accesses a page of memory
  • C.is an access to a page not currently in memory
  • D.is a reference to a page belonging to another program

Answer: C

Correct answer: is an access to a page not currently in memory

A page fault is the trap raised when a program references a page that is not resident: the hardware interrupts, the operating system finds the page on disk, brings it into a free frame - evicting another page if necessary - updates the page table and restarts the instruction. It is a normal event in a paged system, not an error.

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