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Computer science - Test
Contributed by: Skelton
  • 1. Computer science is the study of computers and computational systems. It involves understanding and designing algorithms to solve problems efficiently, as well as analyzing the complexity of systems. Computer science also encompasses the design and development of software and hardware components, such as programming languages, operating systems, and computer networks. This field is essential for advancements in technology and plays a crucial role in various industries, including healthcare, finance, and entertainment. Computer scientists work on a diverse range of projects, from creating artificial intelligence systems to developing new cybersecurity measures. Overall, computer science is a dynamic and ever-evolving field that drives innovation and shapes the future of technology.

    What does CPU stand for?
A) Central Processor Unit
B) Central Processing Unit
C) Computer Processing Unit
D) Computer Performance Unit
  • 2. Which programming language relies on indentation for code structure?
A) Python
B) C++
C) Java
D) JavaScript
  • 3. What is the binary equivalent of the decimal number 10?
A) 0011
B) 1110
C) 1101
D) 1010
  • 4. Which data structure uses LIFO (Last In, First Out) principle?
A) Queue
B) Stack
C) Linked List
D) Heap
  • 5. Which company developed the Java programming language?
A) Sun Microsystems
B) IBM
C) Apple
D) Microsoft
  • 6. What does SQL stand for?
A) Sequential Query Language
B) Simple Query Language
C) Structured Query Language
D) Systematic Query Language
  • 7. Which sorting algorithm has a worst-case time complexity of O(n2)?
A) Merge Sort
B) Heap Sort
C) Bubble Sort
D) Quick Sort
  • 8. What does URL stand for?
A) Universal Remote Link
B) User Rank Logic
C) Unified Resource Listing
D) Uniform Resource Locator
  • 9. What is the primary purpose of an operating system?
A) Produce graphics
B) Run applications
C) Manage hardware and software resources
D) Connect to the internet
  • 10. Which data structure uses nodes and pointers?
A) Queue
B) Linked List
C) Array
D) Tree
  • 11. Which type of algorithm is used to find the shortest path in a graph?
A) Quick Sort
B) Dijkstra's
C) Selection Sort
D) Bubble Sort
  • 12. In object-oriented programming, what is a class?
A) User-defined function
B) Method of data storage
C) Blueprint for creating objects
D) Memory allocation unit
  • 13. What does LAN stand for?
A) Large Access Network
B) Low-bandwidth Application Node
C) Local Area Network
D) Long Antenna Node
  • 14. What does HTTP stand for?
A) Hypertext Transfer Protocol
B) High Tech Protocol
C) Hyper Transfer Protocol
D) Hardware Transfer Process
  • 15. What is a compiler in programming?
A) Graphic design software
B) Translates source code into machine code
C) Database system
D) Debugging tool
  • 16. What is the purpose of a firewall in computer security?
A) Block access to websites
B) Encrypt data
C) Monitor and control incoming/outgoing network traffic
D) Defragment hard drives
  • 17. Which database model organizes data into tables with rows and columns?
A) NoSQL
B) Hierarchical
C) Graph
D) Relational
  • 18. Which company developed the Python programming language?
A) Larry Page
B) Bill Gates
C) Guido van Rossum
D) Mark Zuckerberg
  • 19. What does IDE stand for in software development?
A) Integrated Development Environment
B) Internet Development Enterprise
C) Interface Development Engine
D) Interactive Design Environment
  • 20. What is the binary equivalent of the decimal number 25?
A) 11101
B) 10010
C) 10110
D) 11001
  • 21. What is the most popular version control system used in software development?
A) SVN
B) Mercurial
C) CVS
D) Git
  • 22. What is the process of finding errors and fixing them in a program called?
A) Compiling
B) Debugging
C) Programming
D) Running
  • 23. What does RAM stand for?
A) Remote Access Module
B) Random Access Memory
C) Read-Only Memory
D) Resource Allocation Manager
  • 24. What does DNS stand for?
A) Data Network Security
B) Distributed Network Server
C) Digital Network Service
D) Domain Name System
  • 25. Which programming language is often used for developing Android apps?
A) Java
B) Python
C) Ruby
D) C#
  • 26. What is a network protocol?
A) Coding standard
B) Software license agreement
C) Set of rules for communication between devices
D) User authentication method
  • 27. Which software development methodology emphasizes iterative and incremental development?
A) Lean
B) Waterfall
C) Agile
D) Scrum
  • 28. Which of the following is a type of network topology?
A) Mesh
B) Bus
C) Star
D) Ring
  • 29. Which data structure uses First In, First Out (FIFO) approach?
A) Stack
B) Linked List
C) Array
D) Queue
  • 30. Which programming language is often used for web development?
A) JavaScript
B) C++
C) Python
D) Swift
  • 31. What type of authentication involves using something you know and something you have?
A) Two-factor authentication
B) Biometric authentication
C) Access control
D) Single sign-on
  • 32. What does API stand for in programming?
A) Advanced Program Integration
B) Automated Protocol Interface
C) Application Programming Interface
D) Abstract Programming Instrument
  • 33. What is the primary purpose of version control systems like Git?
A) Manage changes to source code over time
B) Optimize network connections
C) Monitor hardware performance
D) Compile code for execution
  • 34. What is the function of a router in a network?
A) Convert data into sound waves
B) Direct data packets between networks
C) Store data permanently
D) Display web pages
  • 35. Which company developed the C programming language?
A) IBM
B) Apple
C) Microsoft
D) Bell Labs
  • 36. What is the fundamental unit of storage in a computer's memory system?
A) Byte
B) Word
C) Nibble
D) Bit
  • 37. Which component of a computer is responsible for storing data long-term?
A) Graphics Card
B) Hard drive
C) RAM
D) CPU
  • 38. Which of the following is a cloud computing service model?
A) Platform as a Service (PaaS)
B) Desktop as a Service (DaaS)
C) Software as a Service (SaaS)
D) Infrastructure as a Service (IaaS)
  • 39. What is recursion in programming?
A) Convert source code to machine code
B) A function calling itself
C) Parallel processing technique
D) Interpreting assembly language
  • 40. Which networking protocol is used to transfer web pages over the internet?
A) SMTP
B) SSH
C) HTTP
D) FTP
  • 41. What does CSS stand for?
A) Computer System Software
B) Cascading Style Sheets
C) Content Structure System
D) Code Syntax System
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