Which of the following need not necessarily be saved on a context switch between processes?
A)general purpose registers
B)translation lookaside buffer
C)program counter
D)all of the mentioned

Question

Quizplus · Accepted Answer

The Translation Lookaside Buffer (TLB) is part of the memory management unit (MMU) and caches the virtual address to physical address translations. It does not necessarily need to be saved during a context switch because the TLB entries are specific to the address space of a process, and when the process is switched, the TLB can be flushed or updated with the new process's address mappings. The general purpose registers and program counter, however, are crucial to save and restore for each process to ensure correct execution state.

Which of the Following Need Not Necessarily Be Saved on a Context