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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A) INT X, where X is the offset number in hexadecimal format.
B) CALL X, where X is a function identifier.
C) MOV X, Y, where X and Y are registers.
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) BlackBerry OS
D) VAX/VMS

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

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

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

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

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

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

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

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

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

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

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

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