Question 1: OS - Distributed Operating System
What is a Distributed Operating System, and why is it important?
Question 2: OS - User Mode Characteristics
Why is user mode important in operating systems?
Question 3: OS - Overhead of Context Switching
Why is context switching considered an overhead in operating systems?
Question 4: OS - Advantages of Kernel-Level Threads
Which of the following is an advantage of kernel-level threads over user-level threads?
Question 5: OS - Problem with Priority Scheduling
What is the major drawback of priority scheduling?
Question 6: OS - Resource Allocation Graph
In a Resource Allocation Graph (RAG), what indicates a deadlock?
Question 7: OS - Optimal Page Replacement
Why is the Optimal Page Replacement Algorithm theoretical and rarely implemented in real systems?
Question 8: OS - FAT File System
What role does the File Allocation Table (FAT) play in the FAT file system?
Question 9: OS - Semaphore Problem
What issues can arise if semaphores are not used carefully?
Question 10: OS - Password Security
Which of the following practices strengthens password-based authentication?
Question 11: OS - Embedded Operating System
Which of the following describes an Embedded Operating System?
Question 12: OS - Transition Between User and Kernel Mode
How does a program transition from user mode to kernel mode?
Question 13: OS - Process Creation
Which of the following actions typically occurs during process creation?
Question 14: OS - Many-to-One Thread Model
In the many-to-one thread model, what is the major drawback?
Question 15: OS - Round Robin Scheduling
What is the main idea behind Round Robin (RR) scheduling?
Question 16: OS - Deadlock Recovery Methods
Which of the following is a valid deadlock recovery technique?
Question 17: OS - LRU Page Replacement
What principle does Least Recently Used (LRU) page replacement follow?
Question 18: OS - NTFS Features
Which of the following is a major feature of NTFS (New Technology File System) compared to FAT?
Question 19: OS - Monitors
What is a monitor in process synchronization?
Question 20: OS - Two-Factor Authentication (2FA)
What are the two categories of factors typically combined in two-factor authentication (2FA)?