Operating System Concepts Quiz

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Questions and Answers

What is the main purpose of applying patches to an operating system?

  • To install new hardware devices
  • To eliminate the need for user authentication
  • To fix bugs, improve performance, or enhance security (correct)
  • To create virtual machines

Which of the following best describes a virtual machine?

  • A standalone software application
  • A method for user authentication
  • An emulation of a computer system running on physical hardware (correct)
  • A type of backup system

What role does a system monitor play in an operating system?

  • It manages virtual machines
  • It provides information about performance and resource usage (correct)
  • It creates log files for security audits
  • It enforces user authentication

What does the term 'hardening' refer to in the context of an operating system?

<p>Securing a system by reducing its surface of vulnerability (B)</p> Signup and view all the answers

Which of the following is a primary function of a database management system (DBMS)?

<p>To create and manage databases (C)</p> Signup and view all the answers

What is the primary function of a scheduler in an operating system?

<p>To determine which processes run and their order of execution (C)</p> Signup and view all the answers

What is the main objective of process isolation in an operating system?

<p>To prevent processes from interfering with each other (D)</p> Signup and view all the answers

Which option best describes a log file?

<p>A record of events that occur in the operating system (A)</p> Signup and view all the answers

How does preemptive multitasking differ from cooperative multitasking?

<p>Preemptive multitasking allows the OS to interrupt running processes (D)</p> Signup and view all the answers

What distinguishes a mobile operating system from a desktop operating system?

<p>Mobile operating systems are designed specifically for mobile devices (A)</p> Signup and view all the answers

What defines a network operating system (NOS)?

<p>An OS that manages resources for networked computers (C)</p> Signup and view all the answers

What is the primary characteristic of a real-time operating system (RTOS)?

<p>It processes data immediately as it becomes available (D)</p> Signup and view all the answers

What does context switching enable in a multi-process operating system?

<p>It saves the state of a CPU to switch between processes (A)</p> Signup and view all the answers

How would you define file permissions in an operating system?

<p>Settings that dictate access and modification rights to files (A)</p> Signup and view all the answers

What is the role of a mount point in a file system?

<p>It is a point of attachment for additional file systems (C)</p> Signup and view all the answers

What process does memory management involve in an operating system?

<p>Allocating, tracking, and freeing memory space (B)</p> Signup and view all the answers

Flashcards

Scheduler Purpose

Determines which processes run and their order of execution in an operating system.

Preemptive vs. Cooperative Multitasking

Preemptive: OS interrupts a process; Cooperative: process must yield control.

Network Operating System

OS that manages network resources for connected computers.

Real-time Operating System

Processes data immediately without delay.

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Operating System Shell

User interface for interacting with the OS.

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Process Scheduling

How the OS decides which processes run.

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Context Switching

Saving and restoring CPU state for different processes.

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Operating System Service

Function provided by the OS for user programs.

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System Image

A complete copy of the OS and its files for restoring.

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File Permission

Controls who can access and modify files.

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Mount Point

Directory where a file system is connected.

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Swap Space

Hard drive space used as an extension of RAM.

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API

Set of functions for accessing OS features.

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Memory Management

Process of coordinating and handling computer memory.

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Operating System Patching

Applying updates to an operating system to fix bugs, improve performance, or enhance security.

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Shell Script

A text file with commands for a Unix-based operating system's shell.

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Virtual Machine

An imitation of a computer that runs an OS and apps like a real machine.

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User Authentication

Verifying a user's identity to access the operating system.

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Process Isolation

Keeping processes separate to prevent conflicts and improve security.

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System Monitor

A tool showing operating system performance and resource usage.

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Backup

A copy of data stored separately to prevent loss.

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Patch

A software update fixing bugs or improving an OS.

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DBMS

Software to create, manage, and use databases on an OS.

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Log File

A file recording events in the operating system.

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Virtualization

Creating virtual versions of physical resources.

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Operating System Hardening

Securing a system by decreasing vulnerabilities.

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System Administrator

A professional responsible for managing and maintaining computer systems and networks.

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Desktop Operating System

An operating system designed for personal computers, providing a user interface and tools for individual users.

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Mobile Operating System

An operating system designed specifically for mobile devices like smartphones and tablets.

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Network Protocol

A set of rules for how data is sent over a network between operating systems.

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Study Notes

Operating System Concepts

  • Scheduler: Determines which processes run and manages execution order.
  • Preemptive Multitasking: OS interrupts running processes.
  • Cooperative Multitasking: Processes voluntarily yield control.
  • Network Operating System (NOS): Manages network resources for connected computers.
  • Real-Time Operating System (RTOS): Processes data without delay, crucial for real-time applications.
  • Shell: User interface for interacting with the OS (commands or graphics).
  • Process Scheduling: OS method for deciding which processes to run.
  • Context Switching: Storing and restoring CPU state for multiple processes.
  • Operating System Service: Functionality for user programs and system management.
  • System Image: Complete OS, applications, and files for restoration.
  • File Permissions: Access and modification controls for files/directories.
  • Mount Point: Directory where a file system is attached.
  • Swap Space: Hard drive extension of RAM for inactive pages.
  • API (Application Programming Interface): Functions for applications to access OS features.
  • Memory Management: Coordinating and handling computer memory (allocation, tracking).
  • System Update: Applying patches to fix bugs, improve performance, or add security.
  • Shell Script: Text file of commands for a Unix shell.
  • Virtual Machine: Emulated computer system running an OS and apps.
  • User Authentication: Verifying user identity access.
  • Process Isolation: Separating processes for security and stability.
  • System Monitor: Provides system performance and resource usage info.
  • Backup: Data copy for protection against loss.
  • Patch: Software update to fix bugs, improve function or security.
  • Database Management System (DBMS): Software for creating, managing, and interacting with databases.
  • Log File: Records OS events for monitoring and debugging.
  • Virtualization: Creating virtual versions of resources (servers, storage).
  • Hardening: Securing a system by reducing vulnerabilities.
  • System Administrator: Manages and maintains computer systems and networks.
  • Desktop Operating System: For personal computers, providing user interface and tools.
  • Mobile Operating System: Designed for smartphones and tablets.
  • Network Protocol: Rules for data transmission over a network.

Additional Concepts:

  • Resource: A general term for any component used by a computer. (More context needed for a detailed answer)

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