What is the primary purpose of virtual memory in an operating system?

To allow secondary memory to be addressed as if it were part of main memory.

Fill in the blank: The process of bringing a page into memory when a page fault occurs is known as ______.

Demand Paging

True or False: A process can only occupy one continuous block of memory in virtual memory management.

False. A process may be broken into pieces that need not be continuously located in main memory.

Riddle: I can be large, but only parts of me stay in memory at a time. I help manage the memory efficiently. What am I?

Virtual Memory

Which page replacement algorithm replaces the page that will not be used for the longest time in the future?

Optimal Page Replacement

Fill in the blank: The condition when the system spends more time swapping pages than executing processes is called ______.

Thrashing

True or False: Belady's Anomaly can occur in the Least Recently Used (LRU) page replacement algorithm.

False. Belady's Anomaly does not occur in stack-based algorithms like LRU.

What is the purpose of page replacement algorithms in an operating system?

To decide which page needs to be replaced when a new page comes in.

Riddle: I'm a policy that gives a second chance to pages that have been recently used. What am I?

Second Chance (Clock) Page Replacement Policy

What is the term for the space on disk that serves as a substitute for physical memory?

Swap Space