List-I (IPC Style) A. Blocking Send B. Non-blocking Send C. Blocking Receive D. Non-blocking Receive List-II (Blocking Behavior) Sending process resumes immediately after shipping data out Sender halts until message is received by target mailbox Receiver blocks until a message becomes available Receiver retrieves either a valid message or a null indicator

A-2, B-1, C-3, D-4 Explanation: A. Blocking Send 2. Sender halts until message is received by target mailbox Blocking Send me sending process tab tak halt (wait) karta hai jab tak ki message receiving process ya target mailbox dwara receive na ho jaye. B. Non-blocking Send 1. Sending process resumes immediately after shipping data out Non-blocking Send me sender message send karne ke turant baad bina wait kiye apna execution continue kar leta hai. C. Blocking Receive 3. Receiver blocks until a message becomes available Blocking Receive me receiving process tab tak suspend/block rahta hai jab tak ki koi naya message available na ho. D. Non-blocking Receive 4. Receiver retrieves either a valid message or a null indicator Non-blocking Receive me receiver wait nahi karta; agar message available hota hai toh use retrieve kar

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CUET PG 2026 — operating system os PYQ

CUET PG | operating system os | 2026

List-I (IPC Style)

A. Blocking Send

B. Non-blocking Send

C. Blocking Receive

D. Non-blocking Receive

List-II (Blocking Behavior)

Sending process resumes immediately after shipping data out

Sender halts until message is received by target mailbox

Receiver blocks until a message becomes available

Receiver retrieves either a valid message or a null indicator

Choose the correct answer: