Match the columns.

Match List - I with List – II.

List - I (Operating system concepts)	List – II (Characteristics)
A.	Paging	I.	Evicts least recently used process
B.	LRU (Least Recently Used)	II.	Extends physical memory
C.	C-SCAN	III.	Logical to physical mapping
D.	Virtual Memory	IV.	Circular disk access

Choose the correct answer from the options given below:

Correct option is B

The given matching task involves aligning operating system concepts with their corresponding characteristics.
· Paging maps logical addresses to physical memory in fixed-size pages.
· LRU (Least Recently Used) is a page replacement algorithm that evicts the least recently used page.
· C-SCAN (Circular SCAN) is a disk scheduling algorithm that uses a circular scanning approach.
· Virtual Memory extends physical memory using disk storage, allowing larger applications to run.
Information Booster:
· Paging: Used to manage memory by breaking it into pages, allowing efficient address translation.
· LRU: Ensures efficient memory management by removing the least used memory pages.
· C-SCAN: Enhances disk I/O by making a single, continuous pass in one direction.
· Virtual Memory: Allows applications to exceed physical memory capacity by using disk space.