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 mentionedThis question was addressed to me in an international level competition.The doubt is from Process Scheduling Queues in portion Processes of Operating System

Which of the following need not necessarily be saved on a context swit

1.	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 mentionedThis question was addressed to me in an international level competition.The doubt is from Process Scheduling Queues in portion Processes of Operating System
Answer» CORRECT option is (B) Translation lookaside buffer Easiest explanation - Translation Look-aside Buffer (TLB) need not necessarily be saved on a CONTEXT switch between PROCESSES. A special, small, fast-lookup hardware cache is called Translation Look-aside Buffer. TLB used to reduce memory access time.

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