Operating System MCQs with Answers
Practice important Operating System MCQs with answers and explanations.
Chapter: 1
Q1:
What provides the basic computing resources in a computer system?
A. Operating system
B. Hardware
C. Application programs
D. Users
Correct Answer:
B
Chapter: 1
Q2:
Which component manages the hardware among various application programs?
A. Hardware
B. Users
C. Operating System
D. Application Programs
Correct Answer:
C
Chapter: 1
Q3:
What defines how system resources are used to solve user problems?
A. Application Programs
B. Hardware
C. Operating System
D. Users
Correct Answer:
A
Chapter: 1
Q4:
Who are included in the "Users" category of a computer system?
A. Only People
B. Only Machines
C. People, Machines, and Other Computers
D. Only Computers
Correct Answer:
C
Chapter: 1
Q5:
The purpose of a computer system is to generate and execute ________.
A. Operating Systems
B. Programs
C. Data
D. Hardware
Correct Answer:
B
Chapter: 1
Q6:
Where is an executable usually stored before loading into memory?
A. RAM
B. ROM
C. Hard Disk
D. Monitor
Correct Answer:
C
Chapter: 1
Q7:
Before executing a program, it must be loaded into ________.
A. Cache
B. Secondary storage
C. Main Memory
D. Monitor
Correct Answer:
C
Chapter: 1
Q8:
The operating system must ________ the CPU state to start execution.
A. Pause
B. Erase
C. Set appropriately
D. Lock
Correct Answer:
C
Chapter: 1
Q9:
An operating system helps in synchronizing access to ________ among processes.
A. Shared memory
B. Private memory
C. CPU registers
D. Monitor
Correct Answer:
A
Chapter: 1
Q10:
Operating system allocates and deallocates ________ space when files are created or deleted.
A. Memory
B. CPU
C. Disk
D. Network
Correct Answer:
C
Chapter: 1
Q11:
What ensures that a new file does not overwrite an existing file?
A. User request
B. CPU scheduling
C. OS file management
D. Compiler
Correct Answer:
C
Chapter: 1
Q12:
When a program finishes, its memory space must be ________ by the OS.
A. Allocated
B. Deallocated
C. Reused immediately
D. Ignored
Correct Answer:
B
Chapter: 1
Q13:
If a process tries to access memory that does not belong to it, it is prevented by the ________.
A. Application
B. Compiler
C. Operating System
D. User
Correct Answer:
C
Chapter: 1
Q14:
Operating system allows programs larger than main memory to be executed by using ________.
A. Multithreading
B. Virtual Memory
C. Flash Storage
D. Cache
Correct Answer:
B
Chapter: 1
Q15:
The OS schedules CPU(s) to allow ________ execution of processes.
A. Sequential
B. Simultaneous
C. Parallel only
D. Redundant
Correct Answer:
B
Chapter: 1
Q16:
What must the OS prevent to ensure smooth process execution?
A. Errors
B. Deadlocks
C. File access
D. Memory usage
Correct Answer:
B
Chapter: 1
Q17:
________ ensures the integrity of shared data among cooperating processes.
A. Synchronization
B. Compilation
C. Memory allocation
D. File systems
Correct Answer:
A
Chapter: 1
Q18:
A user can manage files and directories using ________.
A. CPU
B. Application code
C. Operating System services
D. Network protocols
Correct Answer:
C
Chapter: 1
Q19:
Which operating system types are focused on in this course?
A. Windows
B. UNIX and Linux
C. MacOS
D. Android
Correct Answer:
B
Chapter: 1
Q20:
A program that acts as an intermediary between the user and hardware is called ________.
A. Compiler
B. Operating System
C. Web Browser
D. Interpreter
Correct Answer:
B