Operating Systems Quiz: Memory Management and Page Faults

What is a page fault?

• A page is removed from memory

• A process tries to use a page that is not in memory

• A page is duplicated in memory

• A page is successfully loaded into memory

Which of the following occurs when a page fault happens?

• The process is terminated

• The CPU continues executing the next instruction

• An operating system interrupt occurs

• The page is immediately loaded into memory

What is the first step taken to handle a page fault?

• Load the page into memory

• Restart the instruction

• Check the page table for memory reference

• Reset the page table

What does the OS memory manager do during a page fault?

• Increases the memory size

• Clears the cache

• Locates the desired page on auxiliary storage

• Terminates the process

What happens if there are no free frames available?

• The page fault is ignored

• The process is paused indefinitely

• A page replacement algorithm is used

• The system crashes

Which of the following is a method to free a frame?

• Ignore the page fault

• Increase the memory size

• Delete the page table

• Copy its contents to disk

What is a reference string in the context of page replacement?

• A list of free frames

• A sequence of memory addresses accessed

• A record of page faults

• A list of all pages in memory

What does the term 'victim page' refer to?

• The page that caused the fault

• The page that is loaded into memory

• The page that is being replaced

• The page that is currently in use

Which page replacement algorithm is based on the principle of replacing the oldest page?

• First In First Out (FIFO)

• Optimal

• Least Frequently Used (LFU)

• Least Recently Used (LRU)

What is the purpose of page replacement algorithms?

• To manage free frames effectively

• To eliminate page faults completely

• To increase the size of physical memory

• To reduce the page fault rate