In modern operating systems, how does virtual memory management enhance system stability and efficiency, and what techniques are used to manage virtual memory effectively?Group of answer choices• (a) Virtual memory management combines multiple physical memory modules into a single logical unit, increasing available memory and simplifying memory allocation.• (b) Virtual memory management allows processes to use disk space as an extension of RAM, ensuring that memory-hungry applications do not crash the system. Techniques include demand paging and swap space management.• (c) Virtual memory management enhances system stability and efficiency by using paging and segmentation to isolate processes and by implementing page replacement algorithms to optimize memory usage. This approach allows processes to run as if they have access to a large contiguous block of memory, even when physical memory is limited.• (d) Virtual memory management allocates fixed memory segments to different processes, reducing the likelihood of memory leaks and improving overall system performance.• (e) Virtual memory management relies solely on increasing physical RAM to handle larger workloads, which improves stability but does not optimize efficiency.

Virtual memory management in modern operating systems enhances system stability and efficiency in several ways.

(a) It does not combine multiple physical memory modules into a single logical unit. Instead, it creates an abstraction of the physical memory, making it appear as a large, contiguous block of memory to processes.

(b) It allows processes to use disk space as an extension of RAM, which is correct. This ensures that memory-intensive applications do not crash the system due to lack of memory. Techniques used to manage this include demand paging, where only the necessary pages of memory are loaded into RAM, and swap space management, where inactive pages are moved to disk space to free up RAM.

(c) Virtual memory management does use paging and segmentation to isolate processes, and it implements page replacement algorithms to optimize memory usage. This allows each process to run as if it has access to a large, contiguous block of memory, even when physical memory is limited.

(d) Virtual memory management does not allocate fixed memory segments to different processes. Instead, it uses a technique called dynamic memory allocation, where memory is allocated and deallocated as needed, reducing the likelihood of memory leaks and improving overall system performance.

(e) Virtual memory management does not rely solely on increasing physical RAM to handle larger workloads. While adding more RAM can improve performance, it is not a scalable or cost-effective solution. Instead, virtual memory management techniques are used to make better use of the available physical memory.