OS Module 1 to 3

What is an Operating System (OS)?

• a) A set of hardware component

• b) A collection of software programs

• c) A user interface

• d) A networking protocol

What is the primary objective of an Operating System?

• a) To manage hardware resources

• b) To provide a platform for software applications

• c) To enhance the performance of the computer system

• d) All of the above

Which of the following is not a function of an Operating System?

• a) Process management

• b) File management

• c) Network management

• d) None of the above

Which scheduling algorithm provides the highest average turnaround time?

• a) First-Come, First-Served (FCFS)

• b) Shortest Job Next (SJN)

• c) Round Robin (RR)

• d) Priority Scheduling

What scheduling algorithm aims to minimize the average waiting time?

• a) FCFS

• b) SJN

• c) Priority Scheduling

• d) Shortest Remaining Time First (SRTF)

What is the name of the state in which a process is waiting for an event to occur?

• a) Running;

• b) Ready

• c) Blocked

• d) New

Process synchronization is essential for:

• a) Preventing deadlock

• b) Enhancing system performance

• c) Sharing resources safely

• d) All of the above

What is a deadlock in Operating Systems?

• a) A state in which processes cannot proceed because each is waiting for a resource held by another process

• b) A state where processes are executing concurrently

• c) A state where a process is terminated abnormally

• d) None of the above

What is a resource allocation graph used for?

• a) To detect deadlock

• b) To allocate resources to processes

• c) To schedule processes

• d) To synchronize processes

What is the purpose of a semaphore in Operating Systems?

• a) To signal the occurrence of an event

• b) To synchronize the execution of processes

• c) To manage shared resources

• d) All of the above