Operating System quiz 1

What are the main types of operating systems?

• Batch, Time-Sharing, Distributed, Network, Real-Time, Mobile

• Graphical User Interface

• Command Line Interface

• Single-User

Define a real-time operating system.

• An RTOS is an operating system that does not support multitasking.

• A real-time operating system is one that runs on mobile devices only.

• An RTOS is an operating system that prioritizes user interface design.

• A real-time operating system (RTOS) is an operating system that guarantees the completion of tasks within specified time constraints.

What is the difference between a single-user and multi-user operating system?

• A single-user OS can support multiple users at once, while a multi-user OS supports only one user.

• A single-user OS allows multiple applications to run simultaneously, while a multi-user OS does not.

• A single-user OS is designed for mobile devices, while a multi-user OS is for desktop computers.

• A single-user OS supports one user at a time, while a multi-user OS supports multiple users simultaneously.

Explain the concept of multitasking in operating systems.

• Multitasking is the ability to run multiple operating systems simultaneously.

• Multitasking allows multiple processes to run concurrently by rapidly switching between them, managed by the operating system.

• Multitasking allows only one process to run at a time.

• Multitasking refers to the process of managing hardware resources exclusively.

What is process scheduling?

• Process scheduling refers to the allocation of disk space for files.

• Process scheduling is the technique used by an operating system to manage the execution order of processes.

• Process scheduling is the technique for managing network traffic.

• Process scheduling is the method of storing data in memory.

Describe the role of the process control block (PCB).

• The PCB stores information about a process, enabling the operating system to manage and schedule processes effectively.

• The PCB is a graphical interface for process visualization.

• The PCB manages hardware resources directly without OS intervention.

• The PCB is used to store user data and preferences.

What is a thread in the context of process management?

• A thread is a separate program that runs independently of other threads.

• A thread is a lightweight process that shares resources with other threads in the same process.

• A thread is a method for encrypting data in a process.

• A thread is a type of hardware component used for processing tasks.

Explain the difference between a process and a program.

• A program is a running instance of a process; a process is the code on disk.

• A program is a collection of processes; a process is a single program.

• A program is static code on disk; a process is the execution of that code in memory.

• A program is always in memory; a process is never stored on disk.

What are the different states of a process?

• Initialized, Executing, Exited

• Active, Inactive, Finished

• Paused, Completed, Suspended

• New, Ready, Running, Waiting, Terminated

What is virtual memory?

• Virtual memory is a memory management technique that uses disk space to extend the apparent amount of RAM available to applications.

• Virtual memory is a method to increase the speed of the CPU.

• Virtual memory is a technique that only uses RAM without any disk space.

• Virtual memory is a type of physical memory found in computers.