In a 64-bit machine, with 2 GB RAM, and 8 KB page size, how many entries will be there in the page table if its inverted ?
- A. 2^18
- B. 2^20
- C. 2^33
- D. 2^51
Answer: A. 2^18
Explanation: Inverted page table size depends on number of frames. RAM = 2GB = $2^{31}$ bytes. Page size = 8KB = $2^{13}$ bytes. Frames = $2^{31} / 2^{13} = 2^{18}$.