Operating Systems: Master the Core Concepts and Functions

Question 1

Which of the following is not a primary function of an operating system?

Accepted Answer

Installing and uninstalling software applications

Answer

Managing hardware resources

Answer

Providing a user interface

Answer

Handling network connections

Question 2

Which memory management technique allocates memory to processes in variable-sized blocks?

Accepted Answer

Segmentation

Answer

Paging

Answer

Virtual memory

Answer

Cache memory

Question 3

Which of the following is a characteristic of a multi-user operating system?

Accepted Answer

Allows multiple users to access and share system resources

Answer

Runs only one program at a time

Answer

Has no user interface

Answer

Is designed specifically for mobile devices

Question 4

What is the key difference between a monolithic and a microkernel operating system architecture?

Accepted Answer

Microkernels are simpler, while monolithic kernels are more complex

Answer

Monolithic kernels are more efficient, while microkernels are more secure

Answer

Microkernels are more efficient, while monolithic kernels are more secure

Answer

Monolithic kernels are simpler, while microkernels are more complex

Question 5

Which of the following is **not** a core function of an operating system?

Accepted Answer

Virtualization

Answer

Process management

Answer

Memory management

Answer

File management

Question 6

Which scheduling algorithm assigns a fixed priority to each process and executes them in that order?

Accepted Answer

Priority scheduling

Answer

First-come, first-served

Answer

Round-robin

Answer

Shortest-job-first

Question 7

What is the purpose of a page table in virtual memory management?

Accepted Answer

To store the physical memory location of each page in virtual memory

Answer

To manage the allocation and deallocation of pages

Answer

To track which pages are currently in use

Answer

To prevent memory leaks

Question 8

Which file system feature allows for efficient access to large files by dividing them into smaller, manageable units?

Accepted Answer

Indexing

Answer

Fragmentation

Answer

Contiguous allocation

Answer

Caching

Question 9

What is the key benefit of using a multi-user operating system?

Accepted Answer

Resource sharing and collaboration

Answer

Improved security

Answer

Increased performance

Answer

Simplified administration

Question 10

Which issue arises in virtual memory management when a needed page is not found in physical memory?

Accepted Answer

Page faults

Answer

Memory leaks

Answer

Buffer overflow

Answer

Deadlocks

Question 11

Which advantage is offered by organizing files in a hierarchical file system?

Accepted Answer

Improved organization and navigation

Answer

Enhanced security and access control

Answer

Faster file search and retrieval

Answer

Reduced memory usage

Question 12

Which component is NOT essential for an operating system's core functionality?

Accepted Answer

Hardware virtualization

Answer

Process management

Answer

Memory management

Answer

File system

Question 13

Which scheduling algorithm aims to optimize the average time processes spend waiting to execute?

Accepted Answer

Shortest job first (SJF)

Answer

First-in, first-out (FIFO)

Answer

Round-robin

Answer

Priority scheduling

Question 14

What primary function does a file system serve within an operating system?

Accepted Answer

To organize data on storage devices for user accessibility

Answer

To manage hardware resources

Answer

To interpret user commands

Answer

To control system security

Question 15

Which type of operating system is specifically tailored for devices with limited resources and real-time constraints?

Accepted Answer

Real-time

Answer

Timesharing

Answer

Distributed

Answer

Batch processing

Question 16

What is the primary purpose of a device driver in an operating system?

Accepted Answer

To facilitate communication between the operating system and hardware devices

Answer

To manage memory allocation for processes

Answer

To schedule processes for execution

Answer

To control access to file systems

Question 17

What is the primary goal of process synchronization in an operating system?

Accepted Answer

To ensure coordinated access to shared resources and prevent conflicts

Answer

To maximize CPU usage

Answer

To prioritize task execution

Answer

To manage file system operations

Question 18

What is the primary responsibility of the kernel in an operating system?

Accepted Answer

Managing the hardware, providing essential system services, and facilitating communication between software components

Answer

Executing application programs

Answer

Storing and organizing files

Answer

Providing a user interface for system interaction

Question 19

Which of the following is the primary role of an operating system?

Accepted Answer

To manage and allocate computer resources, such as memory, processors, and storage devices.

Answer

To act as a graphical user interface for users to interact with the computer.

Answer

To protect the computer from viruses and malware.

Answer

To provide a platform for application software to run on.

Question 20

Which of the following is a non-preemptive process scheduling algorithm?

Accepted Answer

First-Come, First-Served (FCFS)

Answer

Round-Robin

Answer

Priority-based

Answer

Shortest-Job-First

Question 21

What is the primary purpose of memory management in an operating system?

Accepted Answer

To efficiently allocate and manage memory resources to running processes.

Answer

To provide a way for processes to communicate with each other.

Answer

To optimize the performance of the system by caching frequently used data.

Answer

To protect the memory space of each process from being accessed by other processes.

Question 22

What is the fundamental difference between a kernel and a shell in an operating system?

Accepted Answer

The kernel is the core of the operating system, responsible for managing hardware and system resources, while the shell provides an interface for user interaction.

Answer

The shell is the core of the operating system, while the kernel provides an interface for user interaction.

Answer

The kernel is responsible for user interaction, while the shell manages hardware and system resources.

Question 23

What is the primary function of a device driver in an operating system?

Accepted Answer

To provide an interface between the operating system and a specific hardware device.

Answer

To protect the system from unauthorized access and malicious attacks.

Answer

To translate high-level programming instructions into machine code.

Answer

To manage the allocation and deallocation of memory resources.

Question 24

Which of the following is a type of operating system designed for real-time applications?

Accepted Answer

Real-time operating system (RTOS)

Answer

Network operating system

Answer

Multi-user operating system

Answer

Distributed operating system

Question 25

What is the key distinction between a monolithic kernel and a microkernel?

Accepted Answer

A monolithic kernel combines all operating system components into a single large program, while a microkernel provides only essential services and relies on separate modules for additional functionality.

Answer

A monolithic kernel is more efficient than a microkernel because it eliminates the need for inter-module communication.

Answer

A microkernel is more secure than a monolithic kernel because it reduces the attack surface.

Question 26

Which of the following is a commonly used access control mechanism in operating systems?

Accepted Answer

Access Control List (ACL)

Answer

Virtual Private Network (VPN)

Answer

Intrusion Detection System (IDS)

Answer

Firewall