Operating System MCQs

What is the primary function of an operating system?

• Compiling programs

• Managing computer hardware and software resources

• Performing calculations

• Connecting to the internet

Which of the following is NOT a function of an operating system?

• Memory management

• File management

• Compiling source code

• Process management

Which of the following best describes a Kernel in an operating system?

• A type of hardware

• A core component that manages system resources

• A user interface for interacting with the system

• A high-level programming language

The system call that terminates a process is called:

• Fork

• Exit

• Wait

• Execute

Which type of operating system structure allows modules to communicate via message passing?

• Monolithic

• Layered

• Microkernel

• Networked

Which operating system architecture has a simple structure but lacks modularity?

• Monolithic

• Microkernel

• Layered

• Hybrid

In a layered OS architecture, each layer:

• Has access to all lower layers

• Can only interact with adjacent layers

• Must run in kernel mode

• Is responsible for network management

What is a process in an operating system?

• A running program

• A thread in execution

• A system call

• A logical file

The process control block (PCB) does NOT contain which of the following?

• Process state

• CPU scheduling information

• File descriptors

• Source code of the process

Which of the following is NOT a valid process state?

• Ready

• Running

• Waiting

• Executed