CS 241 - Operating System Introduction & Components Quiz

What is the purpose of memory protection in an operating system?

To increase the memory size available to each process
To prevent one process from accessing the memory block assigned to another process (correct)
To speed up the memory allocation process for all processes
To allow all processes to share the same memory blocks

Which component of an operating system manages the technique used to store files on a disk?

Formatting
Memory Management
H/W Interface
File System & Device Management (correct)

What is the function of device drivers in an operating system?

Monitor the CPU usage of different processes
Control the memory access permissions
Interface directly with the hardware (correct)
Manage the physical disk space allocation

Which term refers to the port that connects directly to hardware in an operating system?

H/W Interface (B) Signup and view all the answers

What does formatting in an operating system involve?

Applying different data structures on the disk to store files (D) Signup and view all the answers

Why does an operating system need to manage free space in memory?

To allocate memory efficiently to processes (A) Signup and view all the answers

What is the primary role of an operating system?

To manage hardware resources and provide an interface for users and applications (C) Signup and view all the answers

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

Provide a platform for software development (B) Signup and view all the answers

In a modern computer system, what component connects CPUs and device controllers, allowing access to shared memory?

Common bus (B) Signup and view all the answers

What is the primary interaction between a user and an operating system when executing an application?

The user interacts with the operating system, which then executes the application (B) Signup and view all the answers

Which of the following is an example of an operating system?

Android OS (C) Signup and view all the answers

In a modern computer system, what component allows for concurrent execution of CPUs and devices competing for memory cycles?

Shared memory (C) Signup and view all the answers

What is the first step performed after formatting a disk?

Partitioning (A) Signup and view all the answers

What term is used to describe the situation where disk space is wasted due to unused blocks in a frame?

Fragmentation (B) Signup and view all the answers

Which of the following is NOT an operation performed on files on disk?

Compressing a file (C) Signup and view all the answers

What is the purpose of disk scheduling algorithms like FCFS and SSTF?

To control resource access (B) Signup and view all the answers

At what levels does the operating system manage security, according to the text?

User level and program level (A) Signup and view all the answers

What is an example of a user-level security measure mentioned in the text?

Applying a lock with a pin, pattern, or password (D) Signup and view all the answers

What is the consequence of one process accessing the memory block of another process in an operating system?

Data corruption and system crash (C) Signup and view all the answers

What is a key aspect of the security management at the user level in an operating system?

Control over file access for users (B) Signup and view all the answers

In the context of operating system security, what is the primary purpose of threat protection?

Identifying and preventing malicious programs (C) Signup and view all the answers

What happens in C Programming when a program tries to access a memory address that does not belong to it?

Runtime error: Segmentation Fault (D) Signup and view all the answers

Which component of an operating system's security management ensures that applications can only access specific data relevant to their tasks?

Permission restrictions (A) Signup and view all the answers

What is the purpose of the inbuilt security application in modern operating systems like Windows?

Detecting malicious programs (B) Signup and view all the answers

What components of an operating system are followed in the kernel mode?

Process Management, Memory Management, File System & Device Management, Security Management (B) Signup and view all the answers

How is input mostly given to computers in terms of I/O management?

Using input devices like keyboard, mouse, touch, joystick (C) Signup and view all the answers

What does the operating system do after recognizing the input given by the user in I/O Management?

Switches from user mode to kernel mode (A) Signup and view all the answers

In which two modes are inputs given to computers according to the text?

Graphical User Interface (GUI) and Command Line Interface (CLI) (B) Signup and view all the answers

What is the role of the operating system in Command Interpreter System Management?

Identifying and processing commands given by users (A) Signup and view all the answers

Which components of an operating system are responsible for basic input-output management?

I/O Management (B) Signup and view all the answers