B.S.W.E. Bachelor of Software Engineering Operating Systems & Computer Networks

Question 1

What is a process in an operating system?

Accepted Answer

A program in execution with its own memory space and resources

Answer

A process is an instance of a program in execution, with its own memory address space, program counter, and allocated system resources.

Question 2

What is the key difference between a process and a thread?

Accepted Answer

Threads share memory within a process; processes have separate memory spaces

Answer

Threads are lightweight execution units within a process that share the same memory space, while separate processes have isolated memory.

Question 3

What is virtual memory in operating systems?

Accepted Answer

A technique using disk space to extend apparent RAM capacity

Answer

Virtual memory allows the OS to use disk space (swap/page file) as an extension of RAM, enabling programs to use more memory than physically installed.

Question 4

What scheduling algorithm serves the process that has been waiting the longest?

Accepted Answer

First Come First Served (FCFS)

Answer

First Come First Served (FCFS) processes tasks in the order they arrive, giving CPU time to whichever process has been waiting longest.

Question 5

What is a semaphore in operating systems?

Accepted Answer

A synchronization mechanism controlling access to shared resources

Answer

A semaphore is a synchronization primitive used to control concurrent access to shared resources and prevent race conditions.

B.S.W.E. Bachelor of Software Engineering Practice Test

B.S.W.E. Bachelor of Software Engineering Practice Test

B.S.W.E. Bachelor of Software Engineering Operating Systems & Computer Networks