Multiple choice

In a system with 32 bit virtual addresses and 1KB page size, use of one-level page tables for virtual to physical address translation is not practical because of

  1. the large amount of internal fragmentation

  2. the large amount of external fragmentation

  3. the large memory overhead in maintaining page tables

  4. the large computation overhead in the translation process
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

32 bit virtual address, i.e. $2^{32}$ kB of virtual memory & 1 kB page size. So total pages = $2^{32}$ So. we need to maintain a page table of $2^{32}$ rows, this require 4 GB main memory which is quite impractical due to large memory overhead

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