Question : 1 What is the main purpose of an operating system?
To provide a user interface for interacting with the computer
To manage hardware resources and provide services to applications
To run software applications on the computer
To provide security for the computer system
Question : 2 What is a process in the context of operating systems?
A program that is currently executing
A file system structure used to organize data
A peripheral device connected to the computer
A data structure used for communication between processes
Question : 3 What is virtual memory in operating systems?
A memory management technique that uses physical memory only
A memory management technique that allows processes to use more memory than is physically available
A type of memory used by virtual machines to store snapshots of the system state
A memory protection mechanism that prevents unauthorized access to memory locations
Question : 4 What is a thread in the context of operating systems?
A sequence of instructions executed by a processor
A data structure used for organizing files on disk
A lightweight process that shares the same address space with other threads within the same process
A mechanism for synchronizing access to shared resources between processes
Question : 5 What is a deadlock in operating systems?
A situation where a process is waiting indefinitely for a resource held by another process
A mechanism for preventing unauthorized access to memory locations
A type of error that occurs when a program attempts to access an invalid memory address
A condition where multiple processes are competing for the same CPU resource
Question : 6 What is the difference between multi-tasking and multi-processing?
Multitasking allows multiple processes to run concurrently on a single CPU, while multiprocessing involves multiple CPUs executing tasks simultaneously
Multitasking and multiprocessing are the same concepts with different names
Multitasking refers to the ability to switch between different tasks quickly, while multiprocessing refers to the ability to execute multiple tasks simultaneously
Multitasking is used in single-user systems, while multiprocessing is used in multi-user systems
Question : 7 What is the role of the scheduler in an operating system?
To allocate memory resources to running processes
To manage input and output devices
To control access to the CPU and decide which process to execute next
To manage the file system and organize files on disk
Question : 8 What is a file system in an operating system?
A mechanism for managing files and directories on disk
A process that manages communication between hardware devices and software applications
A protocol used for transferring files over a network
A set of instructions that tells the computer how to boot up and load the operating system
Question : 9 What is the purpose of device drivers in an operating system?
To manage memory resources and allocate space for running processes
To provide a user interface for interacting with the computer
To facilitate communication between the operating system and hardware devices
To control access to the CPU and decide which process to execute next
Question : 10 What is a shell in the context of operating systems?
A protective layer that prevents unauthorized access to system resources
A hardware component responsible for processing input and output operations
A command-line interface for interacting with the operating system
A file system structure used to organize data on disk
Question : 11 What is the difference between kernel mode and user mode in operating systems?
Kernel mode allows direct access to hardware resources, while user mode restricts access to only authorized operations
User mode provides higher privileges than kernel mode
Kernel mode is used for executing user applications, while user mode is used for executing system processes
Kernel mode is used for multitasking, while user mode is used for multiprocessing
Question : 12 What is the role of the interrupt handler in an operating system?
To manage input and output devices
To handle errors that occur during program execution
To respond to hardware interrupts and invoke the appropriate interrupt service routine
To allocate memory resources to running processes
Question : 13 What is the purpose of a page table in virtual memory management?
To store the contents of the CPU registers during context switching
To manage the allocation and deallocation of memory pages
To translate virtual addresses to physical addresses
To synchronize access to shared resources between processes
Question : 14 What is a deadlock in the context of operating systems?
A situation where a process is waiting indefinitely for a resource held by another process
A mechanism for preventing unauthorized access to memory locations
A type of error that occurs when a program attempts to access an invalid memory address
A condition where multiple processes are competing for the same CPU resource
Question : 15 What is the role of the file allocation table (FAT) in file systems?
To store the contents of files in a hierarchical structure
To manage access permissions for files and directories
To map file names to file data locations on disk
To manage the allocation and deallocation of disk blocks
Question : 16 What is context switching in operating systems?
Switching between different user interfaces
Changing from one type of file system to another
The process of saving the state of one process and loading the state of another
Switching between different network protocols
Question : 17 What is the function of the memory management unit (MMU)?
To manage the allocation of CPU resources
To translate virtual addresses to physical addresses
To manage input and output devices
To handle file system operations
Question : 18 What is the primary purpose of a bootloader?
To initialize hardware and load the operating system kernel into memory
To manage system updates and patches
To provide a graphical user interface for the operating system
To handle user login and authentication
Question : 19 What is the difference between paging and segmentation in memory management?
Paging divides memory into fixed-size pages, while segmentation divides memory into variable-size segments
Paging uses logical addresses, while segmentation uses physical addresses
Paging is used for managing disk storage, while segmentation is used for managing RAM
Paging requires hardware support, while segmentation does not