APPLICATION SYSTEM SOFTWARE
SYSTEMS SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Processes are split into equal sized frames
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A page table is used to record all the pages
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Unused pages may be swapped out into virtual memory
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Processes are split into variable sized frames
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Detailed explanation-1: -Which of the following statements is correct about virtual memory? Explanation: Virtual memory is used to separate the user’s logical memory and actual physical memory. Therefore, option (b) is the correct answer.
Detailed explanation-2: -This process is known as swapping . Using virtual memory makes a computer run slower, as the processor has to wait while data is swapped between hard disk and RAM.
Detailed explanation-3: -It is a technique of memory allocation. Swapping occurs when whole process is transferred to the disk. Paging occurs when some part of the process is transferred to the disk. In this, a process is swapped temporarily from main memory to secondary memory.
Detailed explanation-4: -Paging is a computer memory management function that presents storage locations to the computer’s central processing unit (CPU) as additional memory, called virtual memory.