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Operating systems miscellaneous

  1. Consider a computer system with 40-bit virtual addressing and page size of sixteen kilobytes. If the computer system has a one-level page table per process and each page table entry requires 48 bits, then the size of the perprocess page table is _________ megabytes.
    1. 34 MB
    2. 1024 MB
    3. 24 MB
    4. 384 MB
Correct Option: D

Size of memory = 240, Page size = 16KB = 214, No. of pages = Size of Memory/page size = 240/214 = 226, Size of page table = 226 * 48/8 bytes = 26*6 MB = 384 MB



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