A) To manage computer hardware and act as an intermediary between the user and the computer.
B) To create documents and presentations.
C) To make phone calls.
D) To browse the internet faster.

A) Windows
B) Linux
C) macOS
D) Android

A) To provide an interface for hardware devices to communicate with the operating system.
B) To manage email accounts.
C) To play video games.
D) To design websites.

A) Ubuntu
B) Windows
C) Android
D) macOS

A) Graphical User Interface
B) Global User Interaction
C) General Usage Indicator
D) Great User Interface

A) To load the operating system into memory during the boot process.
B) To design logos for companies.
C) To create music playlists.
D) To track the number of steps taken in a day.

A) Access to plant roots.
B) The highest level of access to the operating system, allowing full control over system settings and files.
C) Access to tree roots.
D) Access to root vegetables.

A) Juggling multiple physical objects.
B) The ability of an operating system to execute multiple tasks concurrently.
C) Using multiple keyboards and mice at the same time.
D) Downloading multiple files simultaneously.

A) Linux
B) Windows
C) iOS
D) Chrome OS

A) To keep track of physical exercise routines.
B) To store photos and videos.
C) A central database used to store configuration settings and options for the operating system.
D) To manage financial transactions.

A) A messaging system for computer users.
B) An online shopping platform.
C) A customer service hotline for software issues.
D) An interface provided by the operating system that allows user-level processes to request services from the kernel.

A) Outer layer of the operating system.
B) Online shopping platform.
C) Protective covering for hardware components.
D) A program that interprets commands and allows the user to interact with the operating system.

A) To create presentations.
B) To monitor system performance and manage running processes.
C) To send emails.
D) To play video games.

A) iOS
B) Chrome OS
C) Windows
D) Ubuntu

A) The completion of a program's execution.
B) Accessing valid memory addresses.
C) User input from the keyboard.
D) A time slice occurring, requiring a context switch.

A) Procedural design
B) Functional programming
C) Imperative programming
D) Object-oriented design

A) NTFS
B) FAT32
C) EXT4
D) HFS+

A) Open-source development
B) Security
C) Redundancy
D) Minimalism

A) OS/360
B) MINIX
C) Fortran Monitor System (FMS)
D) UNIX

A) MOV X, Y, where X and Y are registers.
B) CALL X, where X is a function identifier.
C) INT X, where X is the offset number in hexadecimal format.
D) JMP X, where X is the jump address.

A) alpha & bravo.
B) alpha > bravo.
C) alpha < bravo.
D) alpha | bravo.

A) kill(pid, signum).
B) exec(pid, signum).
C) fork(pid, signum).
D) wait(pid, signum).

A) Linux
B) Symbian OS
C) VAX/VMS
D) BlackBerry OS

A) Apache License
B) BSD License
C) GNU General Public License (GPL)
D) MIT License

A) Ubuntu or Fedora
B) Syllable or TempleOS
C) Windows or macOS
D) Android or iOS

A) System/360
B) Linux
C) UNIX
D) MULTICS

A) Windows networking features
B) Android networking features
C) MacOS networking features
D) Standard UNIX networking features

A) ANSI C
B) ISO/IEC 27001
C) IEEE 802.11
D) POSIX

A) Java
B) C++
C) Python
D) Ruby

A) Phishing attacks.
B) Cross-site scripting attacks.
C) Buffer overflow attacks.
D) SQL injection attacks.

A) Batch processing
B) Preemptive multitasking
C) Cooperative multitasking
D) Non-preemptive multitasking

A) Andrew S. Tanenbaum.
B) Linus Torvalds.
C) Bill Gates.
D) Steve Jobs.

A) Linux kernel
B) Windows API
C) Bionic C library
D) UNIX shell

A) Apple's Macintosh
B) Microsoft Windows
C) IBM PC
D) UNIX

A) Data encryption standard (DES).
B) Secure socket layer (SSL).
C) Virtual private network (VPN).
D) Address space layout randomization (ASLR).