MCASemester 22022-23Operating SystemsKCA-203
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Operating Systems (KCA-203) - AKTU Question Paper 2022-23

MCA · Semester 2 · Free PDF Download

This is the official AKTU Operating Systems Previous Year Question Paper for MCA Semester 2, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:MCA
Semester:Semester 2
Session:2022-23
University:AKTU / UPTU

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Questions Asked in 2022-23

Operating Systems (KCA-203) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20
  • a
    Define operating system and mention its major functions
  • b
    Differentiate between times sharing and real time system
  • c
    Distinguish between multilevel queue sch eduling and multilevel feedback queue scheduling
  • d
    How the starvation is different from deadlock? Explain
  • e
    Semaphore gives its implementation to avoid busy waiting. Justify
  • f
    Compare and contrast Single-threaded and multi-threaded process
  • g
    What are the Performance Criteria in CPU Scheduling? Explain
  • h
    Differentiate between paging and segmentation. (i) What do you mean by file directories? Explain. (j) Define link file allocation method
Section BAttempt any three of the following: 10x3=30
  • a
    Expla in batch operating system with example
  • b
    What is semaphore? Classify the semaphore with their synchronization code
  • c
    Define the following terms:- (i) Dispatcher (ii) Dispatch Latency (iii) Optimization of scheduling criteria (iv) Swapping (v) Context switching
  • d
    Five memory partitions of 100, 500, 200, 300 & 600 (all in KB) are in order, how would the ‘first-fit, best-fit & worst-fit’ sha ll place processes of size 212, 417, 112, & 426 ((all in KB). Deduce the most effic ient memory management technique
  • e
    Discuss in detail the ‘Linked, Contiguous, Index & Multi-level Indexing’ file allocation schemes
Section CAttempt any one part of the following: 10x1=10
  • a
    Define Process. Explain various steps involved in c hange of process state with neat transition diagram
  • b
    What is the purpose of the System Calls or Applicat ion Programming Interface (APIs).Enumerate five system calls used in process management or file management?
  • a
    Define critical section problem. Write the Pe terson’s solution to solve critical section problem
  • b
    What is Producer Consumer problem? How it can illus trate the classical problem of synchronization? Explain
  • b
    Consider the set of 4 processes whose arrival time and burst time are given below- Process Arrival Time Priority Burst Time CPU Burst I/O Burst CPU Burst If the CPU scheduling policy is Priority Scheduling , calculate the average waiting time and average turnaround time. (Lower nu mber means higher priority)
  • a
    Illustrate the following page -replacement algorithms. i) FIFO ii) LRU Use the reference string 7, 0,1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2,1, 2, 0, 1, 7, 0,1 for a memory with four frames
  • b
    Discuss Resource Allocation Graph (RAG)? Find how m any cycles’ deadlocks reside in given figure
  • a
    A hard disk having 2000 cylinders, numbered from 0 to 1999. The drive is currently serving the request at cylinder 143,and the previou s request was at cylinder 125.The status of the queue is as follows 86, 1470, 913, 17 74, 948, 1509, 1022,1750,130. What is the total distance (in cylinders) that the disk arm moves to satisfy the entire pending request for each of the following disk scheduling algorithms? (i) SSTF (ii) FCFS
  • b
    Write short note on(any three): (i)I/O buffering (ii) Disk storage & scheduling (iii) File Directory (iv) RAID

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KCA-203

Questions that appeared in more than one session, found by comparing 4 years of Operating Systems papers (2021-22, 2022-23, 2023-24, 2024-25)

2x

Compare and contrast Single-threaded and multi-threaded process

Appeared in: 2021-22 · 2022-23

2x

Define critical section problem. Write the Pe terson’s solution to solve critical section problem

Appeared in: 2021-22 · 2022-23

2x

A hard disk having 2000 cylinders, numbered from 0 to 1999. The drive is currently serving the request at cylinder 143,and the previou s request was at cylinder 125.The status of the queue is as follows 86, 1470, 913, 17 74, 948, 1509, 1022,1750,130. What is the total distance (in cylinders) that the disk arm moves to satisfy the entire pending request for each of the following disk scheduling algorithms? (i) SSTF (ii) FCFS

Appeared in: 2022-23 · 2024-25

Operating Systems — Other Year Papers

AKTU Operating Systems PYQs from other sessions

Operating Systems2021-22Operating Systems2022-23Operating Systems2021-22Operating Systems2023-24Operating Systems2024-25Operating Systems2024-25

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