C191 Operating Systems for Programmers Practice Questions - Set 3 - Part 2

Test your knowledge of data-driven decision making concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 21: Which of the following is an example of a non-preemptive scheduling algorithm?

A) Shortest Job First (SJF)

B) First-Come, First-Served (FCFS)

C) Round Robin (RR)

D) Priority Scheduling

Question 22: In which situation is a "memory leak" likely to occur?

A) When a process terminates correctly

B) When allocated memory is not released after use

C) When multiple processes share the same memory space

D) When the kernel allocates memory

Question 23: What is the primary purpose of the "file allocation table" (FAT)?

A) To manage user permissions

B) To keep track of the disk space allocated to files

C) To schedule processes

D) To allocate CPU resources

Question 24: Which of the following best defines "throughput" in the context of operating systems?

A) The amount of time taken to execute a process

B) The total number of processes completed in a given time

C) The average wait time for processes in a queue

D) The memory usage of processes

Question 25: What is the purpose of "data caching" in an operating system?

A) To increase the speed of data access

B) To encrypt sensitive data

C) To backup data periodically

D) To store data permanently

Question 26: In the context of file management, what does "fragmentation" refer to?

A) The allocation of files in a continuous manner

B) The scattering of file parts across the storage medium

C) The compression of file data

D) The encryption of file contents

Question 27: What is the main function of "system logs" in an operating system?

A) To store user data

B) To record system events and errors

C) To track memory usage

D) To manage network traffic

Question 28: Which scheduling algorithm is based on the shortest estimated time to completion?

A) Round Robin

B) Shortest Job Next (SJN)

C) First-Come, First-Served (FCFS)

D) Priority Scheduling

Question 29: What is "kernel panic"?

A) A user interface issue

B) An unrecoverable error in the kernel

C) A hardware malfunction

D) A memory allocation error

Question 30: What does "multitasking" allow an operating system to do?

A) Execute multiple applications simultaneously

B) Allocate more memory to a single application

C) Increase CPU speed

D) Simplify user interactions

Question 31: In operating systems, what is a "daemon"?

A) A system service running in the background

B) A type of malware

C) A user interface component

D) A memory management technique

Question 32: What is the primary role of the "memory manager" in an operating system?

A) To handle I/O requests

B) To allocate and manage system memory

C) To schedule processes

D) To control user access

Question 33: What is a "bootstrap loader"?

A) A program that manages system resources

B) A program that loads the operating system into memory

C) A component of the file system

D) A tool for managing user accounts

Question 34: Which of the following is a key benefit of using "cloud computing"?

A) Increased local storage requirements

B) Enhanced accessibility and flexibility

C) Higher maintenance costs

D) Reduced security measures

Question 35: What is the purpose of "file permissions" in an operating system?

A) To speed up file access

B) To define user access levels for files

C) To compress file data

D) To manage network connections

Question 36: Which technique is used to prevent "race conditions" in concurrent programming?

A) Priority scheduling

B) Mutex locks

C) Preemptive multitasking

D) Context switching

Question 37: What does "deadlock detection" involve in an operating system?

A) Allowing processes to run indefinitely

B) Identifying processes that are waiting for resources

C) Terminating processes to free resources

D) Allocating resources to all processes

Question 38: What is the significance of "inter-process communication" (IPC)?

A) It allows processes to run independently

B) It facilitates data exchange between processes

C) It allocates CPU time to processes

D) It manages memory allocation

Question 39: In the context of operating systems, what is "swapping"?

A) Moving files between storage devices

B) Temporarily moving processes in and out of memory

C) Replacing outdated applications

D) Changing user permissions

Question 40: What does "NAT" stand for in networking?

A) Network Address Translation

B) Network Allocation Table

C) Network Access Token

D) Network Application Transfer

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