Question

1. What is virtual memory?

The use of non-volatile storage, such as disk to store processes or data from physical memory
A part of physical memory that's used for virtualisation
Some part of physical memory that a process though it had been allocated in the past
O Future physical memory that a process could be allocated

Answer 1

The use of non-volatile storage, such as disk to store processes or data from physical memory.

Step-by-step explanation:

Virtual memory is used by operating systems in order to allow the execution of processes that are larger than the available physical memory by using disk space as an extension of the physical memory. Note that virtual memory is far slower than physical memory.