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

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

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

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

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

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

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

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

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

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

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

A) Online shopping platform.
B) Outer layer of the operating system.
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 play video games.
C) To monitor system performance and manage running processes.
D) To send emails.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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