Basic Locking Tools List-I (Primitive) A. Mutex Lock B. Counting Semaphore C. Busy Waiting D. Spinlock List-II (Functional Definition) Boolean variable used to safeguard a critical resource (Lock/Unlock) Integer variable used to manage access to a finite set of resources Process continuously loops while checking a lock condition Lock that uses busy waiting; ideal for short-duration holds

A-1, B-2, C-3, D-4 Explanation: A. Mutex Lock -> 1. Boolean variable used to safeguard a critical resource (Lock/Unlock) Mutex Lock ek boolean variable hota hai jiska use critical resource ko protect karne ke liye kiya jata hai (Lock/Unlock Mechanism). B. Counting Semaphore -> 2. Integer variable used to manage access to a finite set of resources Counting Semaphore ek integer variable hai jo multiple/finite resources ke access ko control karta hai. C. Busy Waiting -> 3. Process continuously loops while checking a lock condition Busy Waiting me process continuous loop me rehta hai aur baar-baar lock condition ko check karta rehta hai. D. Spinlock -> 4. Lock that uses busy waiting; ideal for short-duration holds Spinlock ek aisa lock hota hai jo busy waiting ka use karta hai aur ye short-duration holds ke liye best hota ha

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CUET PG 2026 — operating system os PYQ

CUET PG | operating system os | 2026

Basic Locking Tools

List-I (Primitive)

A. Mutex Lock

B. Counting Semaphore

C. Busy Waiting

D. Spinlock

List-II (Functional Definition)

Boolean variable used to safeguard a critical resource (Lock/Unlock)
Integer variable used to manage access to a finite set of resources
Process continuously loops while checking a lock condition
Lock that uses busy waiting; ideal for short-duration holds

Choose the correct answer: