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When there is a large logical address space, the best way of paging would be :

  • A.not to page
  • B.a two level paging algorithm
  • C.the page table itself
  • D.all of the mentioned

Answer: B

Correct answer: a two level paging algorithm

A large address space would need a page table too big to hold in memory as one piece, so the table itself is paged: an outer table indexes pages of the inner table. Only the parts actually used need be resident.

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