Match List-I with List-II: List-I (Technique) A. Paging B. Segmentation C. Belady's Anomaly D. Thrashing List-II (Primary Limitation / Feature) Suffers from External Fragmentation Suffers from Internal Fragmentation High page fault rate due to frequent page replacements Page faults increase as the number of page frames increases

A - 2, B - 1, C - 4, D - 3 Explanation: A. Paging 2: Paging fixed-size blocks (pages/frames) me kaam karta hai, jiske wajah se last page me space waste ho sakti hai, ise Internal Fragmentation kehte hain. B. Segmentation 1: Segmentation variable-sized blocks use karta hai, jisse memory me gaps reh jaate hain aur External Fragmentation hota hai. C. Belady's Anomaly 4: Belady's Anomaly ek aisa phenomenon hai jisme page frames ki sankhya badhane par bhi page faults badh jate hain (jaise FIFO page replacement me). D. Thrashing 3: Thrashing wo condition hai jahan system execution se zyada time page replacement/swapping me waste karta hai, jisse page fault rate bahut high ho jata hai.

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CUET PG 2026 — operating system os PYQ

CUET PG | operating system os | 2026

Match List-I with List-II:

List-I (Technique)

A. Paging

B. Segmentation

C. Belady's Anomaly

D. Thrashing

List-II (Primary Limitation / Feature)

Suffers from External Fragmentation

Suffers from Internal Fragmentation

High page fault rate due to frequent page replacements

Page faults increase as the number of page frames increases

Choose the correct answer: