Which is the first program that runs when you power on your computer?

• Bootloader

• BIOS

• Kernel

• File Manager

What does the Power-On Self-Test (POST) do?

• Loads the operating system

• Tests if essential hardware components work correctly

• Authenticates the user

• Configures network settings

Which component locates and loads the operating system kernel into memory?

• Bootloader

• Cache Manager

• Device Driver

• Disk Scheduler

What is the final step before gaining access to the OS?

• Loading BIOS

• Loading system utilities

• User authentication

• Mounting drives

What is the main goal of multiprogramming?

• Save disk space

• Keep the CPU always busy

• Run only one process at a time

• Increase RAM speed

What gives the illusion that all programs are running at the same time?

• Multithreading

• Multitasking

• Multiprocessing

• Virtual Memory

Which OS responsibility ensures processes do not interfere with each other’s memory?

• File Management

• Memory Management

• Disk Scheduling

• User Authentication

What allows processes larger than physical memory to run?

• Multiprogramming

• Virtual Memory

• Cache Management

• Disk Scheduling

In dual-mode operation, which mode runs the OS with full hardware access?

• User Mode

• Kernel Mode

• Admin Mode

• Virtual Mode

What prevents normal applications from performing dangerous hardware operations?

• Mode Bit

• Disk Partitioning

• CPU Scheduler

• File Permissions