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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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