If a process P1 wants to access the data belonging to a process P2, what the Ope

Question

If a process P1 wants to access the data belonging to a process P2, what the Operating System has to do?

a) The OS will add a virtual address to the Swap Space of P1, referencing the memory location belonging to P2. The OS will also set the Write Bit of this new virtual address to 0 (read only)

b)The OS will add a virtual address to the Page Table of P1, referencing the memory location belonging to P2. The OS will also set the Write Bit of this new virtual address to 1 (write and read)

c) The OS will add a virtual address to the Page Table of P1, referencing the memory location belonging to P2. The OS will also set the Reference Bit of this new virtual address to 0

d) The OS will add a virtual address to the Page Table of P1, referencing the memory location belonging to P2. The OS will also set the Write Bit of this new virtual address to 0 (read only)

Explanation / Answer

a) The OS will add a virtual address to the Swap Space of P1, referencing the memory location belonging to P2. The OS will also set the Write Bit of this new virtual address to 0 (read only)

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