Computer Science and Software Engineering MCQs

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1. Which of the following is not a programming language?
(A) Python
(B) HTML
(C) MySQL
(D) Java

2. What does SQL stand for in the context of databases?
(A) Standard Query Language
(B) Structured Question Language
(C) Sequential Query Language
(D) Simple Query Language

3. Which data structure allows you to access elements in Last In, First Out (LIFO) order?
(A) Queue
(B) Linked List
(C) Tree
(D) Stack

4. In object-oriented programming, what is encapsulation?
(A) Allowing one class to inherit from another class
(B) Hiding the implementation details of a class from its objects
(C) Restricting access to class members
(D) Binding data and functions that manipulate the data into a single unit

5. Which of the following is a type of sorting algorithm?
(A) Breadth-First Search
(B) Depth-First Search
(C) Binary Search
(D) Quick Sort

6. What does HTTP stand for in the context of web technology?
(A) High Transfer Protocol
(B) HyperText Transfer Protocol
(C) Hyper Transfer Protocol
(D) HighText Transfer Protocol

7. Which type of testing checks if the individual units or components of a software work well together?
(A) Unit testing
(B) System testing
(C) Integration testing
(D) Acceptance testing

8. Which programming paradigm promotes writing code by defining the desired outcome rather than step-by-step instructions?
(A) Procedural programming
(B) Functional programming
(C) Object-oriented programming
(D) Declarative programming

9. What is the purpose of a compiler in programming?
(A) Executes the program line by line
(B) Converts high-level language code into machine code
(C) Checks for errors in the program logic
(D) Optimizes the performance of the program

10. Which data structure organizes data in a hierarchical structure with a top-down relationship?
(A) Array
(B) Tree
(C) Queue
(D) Stack

11. What does IDE stand for in software development?
(A) Integrated Development Environment
(B) Intelligent Design Environment
(C) Integrated Design Environment
(D) Intelligent Development Environment

12. Which type of database stores data in tables that are related by primary and foreign keys?
(A) NoSQL database
(B) Relational database
(C) Graph database
(D) Key-value database

13. What is the purpose of version control systems like Git?
(A) Manage and track changes to source code
(B) Compile source code into executable files
(C) Debug errors in source code
(D) Optimize the performance of compiled code

14. Which software development methodology emphasizes iterative development and frequent releases?
(A) Waterfall
(B) RAD (Rapid Application Development)
(C) Spiral
(D) Agile

15. What is the function of an operating system in a computer system?
(A) Generates graphical user interfaces
(B) Executes application programs
(C) Manages hardware resources and provides services for computer programs
(D) Manages user accounts and permissions

16. Which programming language is primarily used for statistical computing and data analysis?
(A) Java
(B) Python
(C) C++
(D) Ruby

17. What does API stand for in software development?
(A) Application Programming Interface
(B) Advanced Programming Interface
(C) Application Protocol Interface
(D) Advanced Protocol Interface

18. Which data structure allows for efficient insertion and deletion of elements from both ends?
(A) Array
(B) Queue
(C) Linked list
(D) Stack

19. What is the primary function of a firewall in network security?
(A) Blocks unauthorized access to a network
(B) Encrypts data transmissions
(C) Monitors network traffic
(D) Provides secure remote access to a network

20. Which type of testing evaluates how a system behaves under normal conditions?
(A) Stress testing
(B) Functional testing
(C) Performance testing
(D) Load testing

21. What does URL stand for in web technology?
(A) Universal Resource Locator
(B) Uniform Reference Locator
(C) Universal Reference Locator
(D) Uniform Resource Locator

22. Which type of network topology connects each network device to a central hub?
(A) Star topology
(B) Bus topology
(C) Ring topology
(D) Mesh topology

23. What is the purpose of a cache memory in a computer system?
(A) Stores frequently accessed data to improve access speed
(B) Executes application programs
(C) Manages hardware resources
(D) Stores the operating system files

24. Which programming language is commonly used for developing Android applications?
(A) Java
(B) Swift
(C) C#
(D) Objective-C

25. What is the function of a DNS server in computer networks?
(A) Encrypts data transmissions
(B) Manages user accounts and permissions
(C) Translates domain names to IP addresses
(D) Provides secure remote access to a network

26. Which type of attack attempts to make a machine or network resource unavailable to its intended users?
(A) Phishing attack
(B) SQL injection attack
(C) Man-in-the-Middle (MitM) attack
(D) Denial-of-Service (DoS) attack

27. What is the purpose of a virtual machine in computing?
(A) Simulates a complete computer system within another
(B) Executes applications directly on the hardware
(C) Manages user accounts and permissions
(D) Stores frequently accessed data to improve access speed

28. Which programming language is commonly used for scripting and automation in Linux systems?
(A) Perl
(B) Ruby
(C) Shell scripting (bash)
(D) PHP

29. What does HTML stand for in the context of web development?
(A) HyperText Markup Language
(B) High-Level Markup Language
(C) Home Tool Markup Language
(D) Hyperlink and Text Markup Language

30. Which type of encryption uses the same key for both encryption and decryption?
(A) Asymmetric encryption
(B) Symmetric encryption
(C) Public-key encryption
(D) Private-key encryption

31. What does XML stand for in the context of data representation?
(A) eXclusive Markup Language
(B) eXecutable Markup Language
(C) eXtensible Markup Language
(D) eXotic Markup Language

32. Which type of software design pattern separates the construction of a complex object from its representation?
(A) Builder pattern
(B) Factory pattern
(C) Singleton pattern
(D) Observer pattern

33. What is the purpose of a cookie in web browsers?
(A) Stores user preferences and session information
(B) Blocks malicious websites
(C) Encrypts data transmissions
(D) Provides secure login authentication

34. Which type of testing evaluates the software’s performance under a high workload?
(A) Unit testing
(B) Stress testing
(C) Load testing
(D) Integration testing

35. What is the function of a router in computer networks?
(A) Translates domain names to IP addresses
(B) Provides secure remote access to a network
(C) Manages user accounts and permissions
(D) Routes data packets between networks

36. Which programming language is primarily used for developing iOS applications?
(A) Swift
(B) Java
(C) Objective-C
(D) C#

37. What does RAID stand for in data storage technology?
(A) Redundant Array of Independent Disks
(B) Random Access Integrated Data
(C) Rapid Access for Instant Data
(D) Reliable Array of Indexed Disks

38. Which software development model focuses on breaking down the development process into smaller, manageable parts called sprints?
(A) Waterfall model
(B) Agile model
(C) Spiral model
(D) RAD model

39. What is the primary function of an algorithm in computer science?
(A) Defines a sequence of steps to solve a problem
(B) Solves complex mathematical problems
(C) Implements user interfaces
(D) Translates source code into machine code

40. Which data structure organizes data in a linear sequence where elements can be added or removed from both ends?
(A) Array
(B) Queue
(C) Linked list
(D) Stack

41. What does TCP/IP stand for in the context of computer networks?
(A) Telecommunication Control Protocol/Internet Protocol
(B) Total Control Protocol/Internet Protocol
(C) Transfer Control Protocol/Internet Protocol
(D) Transmission Control Protocol/Internet Protocol

42. Which type of testing checks if the software meets its specified requirements and functions correctly?
(A) Unit testing
(B) Integration testing
(C) System testing
(D) Acceptance testing

43. What is the purpose of a virtual private network (VPN)?
(A) Manages hardware resources in a virtual environment
(B) Encrypts data transmissions over a public network
(C) Stores and retrieves large volumes of data
(D) Optimizes network traffic for faster data transfer

44. Which type of software testing focuses on finding defects or bugs in the software?
(A) Performance testing
(B) Debugging
(C) Acceptance testing
(D) Stress testing

45. What does SVG stand for in web development?
(A) Simple Vector Graphics
(B) Scalable Vector Graphics
(C) Standard Vector Graphics
(D) Structured Vector Graphics

46. Which programming language is often used for scripting in web development and server-side applications?
(A) JavaScript
(B) PHP
(C) CSS
(D) HTML

47. What is the purpose of an index in a database?
(A) Stores duplicate copies of data for backup
(B) Encrypts sensitive data fields
(C) Organizes data for efficient search and retrieval
(D) Tracks changes made to database records

48. Which type of attack involves tricking users into revealing sensitive information?
(A) Phishing attack
(B) Denial-of-Service (DoS) attack
(C) SQL injection attack
(D) Cross-site scripting (XSS) attack

49. What does HTML5 introduce as a new feature in web development?
(A) Enhanced support for audio and video playback
(B) Improved security protocols
(C) Faster rendering engines
(D) Advanced animation techniques

50. Which software development methodology emphasizes continuous improvement and collaboration between development and operations teams?
(A) DevOps
(B) Agile model
(C) Waterfall model
(D) RAD model

Computer Science and Software Engineering MCQs

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