What happens during a page fault in virtual memory management?
A. The computer experiences a fatal hardware crash.
B. The hard disk sector becomes permanently corrupted.
C. The processor attempts to access a page of memory that is not currently loaded in the physical RAM.
D. The system runs out of network bandwidth.
Answer: Option C
Solution (By JKSSB Mock Tests)
A page fault is an interrupt raised by hardware when a program tries to access a memory page mapped in virtual space but not loaded into the physical RAM.
What type of kernel configuration runs basic scheduling routines in kernel space but offloads device drivers and file systems to user space to maximize stability?
Explanation:
Microkernels improve system resilience by restricting kernel space to essential primitives, isolating driver crashes from bringing down the core OS.
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