Operating System MCQs

What is the main function of an Operating System?

• Provide hardware for application programs

• Manage hardware resources and provide services for application programs

• Handle network security

• Perform mathematical calculations

Which of the following is not a type of Operating System evolution?

• Serial Processing

• Simple Batch Systems

• Real-Time Systems

• Linear Processing

In which system is the CPU used by only one user at a time?

• Multi-Programmed Batch Systems

• Time Sharing Systems

• Serial Processing

• Distributed Systems

Which type of Operating System allows multiple users to share the resources of a computer system simultaneously?

• Distributed Systems

• Time Sharing Systems

• Serial Processing

• Real-Time Systems

A real-time operating system is primarily designed to:

• Handle time-sharing for multiple users

• Process batches of tasks in a queue

• Provide immediate processing for time-critical tasks

• Manage file systems

A process in an operating system can be in which of the following states?

• Ready

• Running

• Blocked

• All of the above

What is a Process Control Block (PCB)?

• A table of all running processes

• A data structure that stores information about a process

• A queue of waiting processes

• A list of memory addresses

What is the main purpose of process communication in a client-server system?

• To control CPU scheduling

• To allow processes to exchange data

• To manage memory

• To execute commands concurrently

What is the concept of concurrency in operating systems?

• Running multiple programs on different systems simultaneously

• Multiple processes sharing the CPU resources at the same time

• One process running on multiple CPUs

• The process of managing memory effectively

What is the primary purpose of mutual exclusion in process synchronization?

• Preventing deadlock

• Ensuring that only one process accesses shared resources at a time

• Speeding up process execution

• Preventing system crashes