GuruHub: Computer Science General Knowledge Questions and Answers Quiz (Q325)

Improve your understanding with our extensive general knowledge quiz on computer science, which has more than 350 questions and answers. This quiz, which covers important subjects including algorithms, data structures, programming languages, networking, operating systems, and more, is ideal for professionals, students, and IT lovers. Take on new challenges and improve your comprehension of important computer science ideas. Perfect for test preparation, competitive examinations, and self-evaluation. Now get started and see how much you know!

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Which of the following is not a programming language?
Python
HTML
Java
C++
What does CPU stand for?
Central Process Unit
Central Processor Unit
Computer Personal Unit
Central Processing Unit
Which data structure uses LIFO (Last In First Out) principle?
Linked List
Queue
Array
Stack
What is the time complexity of binary search?
O(log n)
O(n)
O(n^2)
O(n log n)
Which protocol is used to send email?
SNMP
FTP
HTTP
SMTP
Which of the following is a NoSQL database?
PostgreSQL
MySQL
Oracle
MongoDB
Which of the following sorting algorithms is the fastest in average cases?
Quick Sort
Insertion Sort
Selection Sort
Bubble Sort
What is the main purpose of an operating system?
To manage hardware resources
To design software
To compile code
To browse the internet
Which of the following is a version control system?
HTML
Git
HTTP
CSS
What is the smallest unit of data in a computer?
Kilobyte
Megabyte
Bit
Byte
Which type of memory is volatile?
RAM
SSD
Hard Disk
ROM
Which of the following is a markup language?
HTML
Java
Python
C#
In object-oriented programming, which concept refers to bundling data and methods that operate on that data?
Encapsulation
Abstraction
Inheritance
Polymorphism
Which of the following is an example of a compiled language?
Python
JavaScript
Ruby
C
Which algorithm is used for finding the shortest path in a graph?
Dijkstra's Algorithm
Bubble Sort
Binary Search
Merge Sort
What does HTTP stand for?
High Transfer Text Protocol
Hyper Text Transfer Program
Hyper Time Text Processing
Hyper Text Transfer Protocol
Which of the following is an example of a high-level programming language?
Assembly
C++
Machine Code
Binary Code
Which of the following is NOT an operating system?
Linux
Android
Windows
Oracle
Which of the following data structures is used to implement a graph?
Adjacency List
Array
Stack
Linked List
What is the full form of URL?
Uniform Resource Link
Universal Response Locator
Uniform Resource Locator
Unified Resource Locator
Which of the following is a primary key in a database?
A field that contains null values
A field that contains duplicate values
A unique identifier for each record
A field used for storing images
Which sorting algorithm has the worst-case time complexity of O(n^2)?
Bubble Sort
Quick Sort
Merge Sort
Heap Sort
What does API stand for?
Application Programming Interface
Application Program Interface
Advanced Program Interface
Application Programming Infrastructure
Which language is primarily used for web development?
Python
C#
JavaScript
C++
Which of the following is NOT a type of machine learning?
Supervised Learning
Reinforcement Learning
Unsupervised Learning
Structured Learning
Which of the following is used to uniquely identify a device on the internet?
IP Address
URL
Domain Name
MAC Address
Which of the following is not a relational database management system?
MySQL
MongoDB
PostgreSQL
SQLite
Which of the following is a valid loop structure in Python?
do-while
foreach
while
for
Which layer of the OSI model is responsible for error detection?
Transport
Data Link
Network
Application
What is the main purpose of a firewall?
To prevent unauthorized access
To store files
To detect malware
To manage network traffic
Which of the following is used to connect a computer to a network?
CPU
USB
NIC
RAM
What is the file extension for a compiled Java file?
.jar
.class
.java
.exe
Which of the following is NOT a type of operating system?
Dual-threading
Real-time
Single-tasking
Multitasking
What is a recursive function?
A function that runs in a loop
A function that never ends
A function that returns multiple values
A function that calls itself
Which of the following is an immutable data type in Python?
List
Set
Tuple
Dictionary
What is the name of the first computer virus?
MyDoom
Melissa
Creeper
ILOVEYOU
Which of the following is a cloud computing service model?
SaaS
HTTP
WAN
LAN
In which year was the World Wide Web introduced?
1991
1989
1995
1990
Which of the following is not a component of the CPU?
Registers
Control Unit
ALU
RAM
Which one of the following is a logic gate?
WITH
FOR
AND
NEXT
What is the full form of JSON?
JavaScript Object Network
Java System Object Network
Java Simple Object Notation
JavaScript Object Notation
Which of the following is a programming paradigm focused on 'objects'?
Functional Programming
Declarative Programming
Procedural Programming
Object-Oriented Programming
Which data structure is used in Breadth First Search (BFS) of a graph?
Heap
Tree
Stack
Queue
Which of the following is NOT a type of cyber attack?
DDoS
SQL Injection
Compiling
Phishing
In SQL, which keyword is used to sort the result set?
FILTER BY
SORT BY
GROUP BY
ORDER BY
Which of the following languages is primarily used for statistical analysis?
Java
C#
Python
R
What does 'ref' keyword signify in C#?
A pass by value parameter
A pointer
A method return type
A pass by reference parameter
Which company developed the C programming language?
Bell Labs
IBM
Apple
Microsoft
Which of the following is an example of a distributed version control system?
SVN
Perforce
Mercurial
Git
Which of the following is used for styling HTML documents?
PHP
CSS
SQL
JavaScript
Which of the following is used for creating a virtual machine in cloud computing?
Interpreter
Container
Compiler
Hypervisor
Which search algorithm repeatedly divides the sorted list in half to find an item?
Depth-First Search
Binary Search
Breadth-First Search
Linear Search
Which of the following is a fundamental operation of a stack?
Insert and Delete
Enqueue and Dequeue
Add and Remove
Push and Pop
Which of the following is a Linux-based operating system?
Windows
macOS
Ubuntu
iOS
What does FTP stand for?
File Transfer Protocol
File Transmission Protocol
File Transport Protocol
Fast Transfer Protocol
Which command is used to remove a file in Linux?
remove
erase
rm
del
What is the name of the process that changes the structure of a database to reduce redundancy?
Normalization
Replication
Denormalization
Indexing
Which of the following technologies is primarily used for front-end development?
Java
Python
HTML
Node.js
Which of the following is NOT a data type in Java?
int
boolean
float
decimal
Which programming language is most commonly used for Android app development?
C#
Java
Kotlin
Swift
Which of the following is NOT an example of cloud storage?
Google Drive
BIOS
Dropbox
OneDrive
Which data structure uses FIFO (First In First Out) principle?
Stack
Linked List
Heap
Queue
What is the name of the operating system kernel developed by Linus Torvalds?
Windows
Linux
iOS
Unix
Which sorting algorithm is the best for a nearly sorted array?
Merge Sort
Insertion Sort
Selection Sort
Bubble Sort
What is the default port number for HTTP?
80
25
443
22
Which of the following is a machine learning library for Python?
Keras
Pandas
NumPy
JQuery
Which of the following is used for version control in software development?
Git
Jenkins
Docker
Terraform
Which database command is used to remove records from a table in SQL?
REMOVE
DROP
ERASE
DELETE
Which data structure allows inserting elements at both ends but allows deletion at only one end?
Queue
Stack
Priority Queue
Deque
What does DNS stand for?
Data Network Service
Distributed Network Service
Domain Name System
Dynamic Network System
Which of the following languages is used for data science?
C++
Ruby
HTML
Python
Which of the following best describes Big O notation?
Time complexity
Space complexity
Algorithm performance
Programming language
Which of the following is NOT a feature of object-oriented programming?
Polymorphism
Encapsulation
Inheritance
Compilation
Which company developed the Java programming language?
Sun Microsystems
IBM
Microsoft
Apple
Which of the following is an interpreted programming language?
C++
Java
C
Python
In the OSI model, which layer is responsible for establishing, managing, and terminating connections?
Network Layer
Transport Layer
Application Layer
Session Layer
Which of the following is used to write server-side code?
XML
HTML
PHP
CSS
What is the primary use of the 'JOIN' clause in SQL?
To combine columns from multiple tables
To delete rows from a table
To create a new table
To sort the table rows
Which of the following is NOT a type of loop in programming?
do-while
execute-until
for
while
Which of the following is NOT a type of database key?
Logical Key
Primary Key
Unique Key
Foreign Key
Which protocol is used to securely transfer files over the internet?
HTTP
SFTP
FTP
SMTP
What is the full form of SSD in computer storage?
Single Storage Disk
Solid State Drive
Standard Storage Device
Secure Storage Device
Which of the following is an example of a functional programming language?
Python
C
Java
Haskell
Which of the following is a widely used deep learning framework?
Flask
Django
TensorFlow
React
What does DRAM stand for?
Direct Read Access Memory
Dynamic Random Access Memory
Dual Random Access Memory
Dynamic Read Access Memory
Which of the following is an example of a dynamically typed language?
C
Java
C++
Python
Which operation in a binary tree visits all the nodes in a breadth-first manner?
Level-order traversal
Post-order traversal
Pre-order traversal
In-order traversal
Which technology is used to make web pages interactive?
SQL
JavaScript
CSS
HTML
Which of the following is a commonly used data interchange format?
HTML
JSON
CSS
SQL
Which of the following is NOT a valid HTTP method?
PULL
PUT
GET
POST
Which of the following algorithms is used for encryption?
Dijkstra's Algorithm
Merge Sort
SHA-256
Prim's Algorithm
Which type of malware replicates itself and spreads to other computers?
Virus
Spyware
Trojan Horse
Worm
What is the process of finding errors in software code called?
Debugging
Compiling
Testing
Rendering
Which one of the following is a key characteristic of Agile methodology?
Waterfall model
Iterative development
Strict deadlines
Linear development
Which of the following is used to compile Java code?
python
gcc
node
javac
Which type of SQL statement is used to modify existing records in a table?
SELECT
UPDATE
DELETE
INSERT
In computer networking, what is a 'packet'?
A type of malware
A storage device
A unit of data sent over a network
A security protocol
Which of the following is a feature of cloud computing?
Scalability
Local storage only
No internet required
Physical servers only
What does XML stand for?
External Markup Language
Extended Markup Language
Executable Markup Language
Extensible Markup Language
Which of the following is a non-relational database system?
PostgreSQL
Oracle
MongoDB
MySQL
What does HTTP stand for in the context of web development?
Hightext Transfer Protocol
Hypertext Transfer Protocol
Hypertext Transmission Protocol
Hyperlink Transfer Protocol
Which of the following algorithms is best for sorting a large dataset in-memory?
Bubble Sort
Insertion Sort
Selection Sort
Merge Sort
Which technology is used to create responsive web designs?
PHP
JavaScript
Bootstrap
Java
Which of the following is an example of a distributed database?
SQLite
MongoDB
Microsoft SQL Server
Apache Cassandra
Which of the following is a commonly used version control system?
Git
All of the above
Mercurial
SVN
What does the 'pip' command do in Python?
Compiles code
Runs scripts
Debugs code
Installs packages
What is the primary purpose of a load balancer in a network?
To increase security
To distribute traffic across servers
To store data
To monitor performance
Which of the following is a type of software license that allows modification and redistribution?
Open Source
Closed Source
Shareware
Proprietary
What is the primary function of an API in software development?
To store data
To define a set of rules for interaction between software
To manage hardware resources
To provide a graphical user interface
Which algorithm is used for efficient searching in a sorted list?
Binary Search
Depth-First Search
Linear Search
Breadth-First Search
What does the term 'cloud computing' refer to?
Running applications on a local machine
Storing data on local servers
None of the above
Providing computing resources over the internet
Which programming language is known for its use in web front-end development?
JavaScript
C#
Java
Swift
Which of the following data structures is used to implement a priority queue?
Stack
Linked List
Queue
Heap
What is the purpose of a database index?
To store large amounts of data
To speed up query retrieval
To create backups
To encrypt data
Which of the following is a method for managing concurrency in databases?
Indexing
Data Encryption
Transaction Management
Replication
Which command-line tool is used for interacting with a Git repository?
node
bash
cmd
git
What does the 'chmod' command do in Unix-based systems?
Changes directory structure
Changes file names
Changes file ownership
Changes file permissions
Which of the following is a characteristic of a relational database?
Non-structured data
Graph-based relationships
Tables with rows and columns
Key-value pairs
Which protocol is used for secure communication over the internet?
HTTPS
FTP
SMTP
HTTP
Which data structure is ideal for implementing a LRU (Least Recently Used) cache?
Queue
Hash Map
Linked List
Stack
Which concept allows an object to take on multiple forms in object-oriented programming?
Abstraction
Encapsulation
Inheritance
Polymorphism
Which of the following is a type of database normalization?
All of the above
1NF
3NF
2NF
What does the 'git pull' command do?
Deletes a branch
Fetches and merges changes from the remote repository
Pushes changes to the remote repository
Clones a repository
Which of the following is a statically typed programming language?
JavaScript
Java
Python
Ruby
Which of the following is NOT a common HTTP status code?
500
404
303
200
What is the primary function of the 'ALU' in a CPU?
Arithmetic and Logic Operations
Control
Storage
Addressing
What does 'API' stand for in the context of web services?
Advanced Programming Interface
Active Programming Interface
Application Programming Interface
Application Process Integration
Which data structure is used for implementing a LIFO (Last In First Out) principle?
Queue
Priority Queue
Stack
Deque
What is the purpose of a cache in computing?
To store frequently accessed data for faster retrieval
To manage network traffic
To execute code
To perform data encryption
Which protocol is used for sending emails over the internet?
IMAP
HTTP
POP3
SMTP
Which concept allows for data abstraction in object-oriented programming?
Polymorphism
Encapsulation
Inheritance
Abstraction
Which of the following is NOT a valid type of database relationship?
Many-to-One
One-to-Many
Many-to-Many
One-to-One
Which algorithm is best suited for finding the shortest path in a graph?
Prim's Algorithm
Dijkstra's Algorithm
Kruskal's Algorithm
A* Algorithm
What does 'BIOS' stand for?
Binary Input/Output System
Binary Integrated Operating System
Basic Input/Output System
Basic Integrated Operating System
Which of the following is a key feature of the RESTful API?
Complex Queries
Statefulness
Statelessness
Binary Protocol
What does 'JVM' stand for in Java programming?
Java Versatile Machine
Java Virtual Machine
Java Variable Machine
Java Virtual Monitor
Which of the following is used to ensure data integrity in a file system?
Checksums
Decompression
Encryption
Compression
Which design pattern is used to create objects in a manner independent of the specific classes that implement the objects?
Observer
Decorator
Factory
Singleton
Which of the following is a popular framework for building web applications in Python?
Django
Express
Flask
Angular
What is the primary role of an operating system?
To compile source code
To provide network security
To manage hardware resources and provide services for software
To perform arithmetic operations
Which type of data structure allows both insertion and deletion from both ends?
Queue
Deque
Stack
Linked List
Which of the following is a feature of a stack data structure?
LIFO
Hash-based
Priority-based
FIFO
What does the 'ping' command do in networking?
Transfers files
Checks network connectivity
Secures data transmissions
Configures network settings
Which data structure is most suitable for implementing a priority queue?
Array
Queue
Stack
Heap
What is the purpose of a virtual machine?
To manage user permissions
To provide network access
To run multiple operating systems on a single physical machine
To perform encryption
Which algorithm is used for data compression?
Huffman Coding
Bellman-Ford Algorithm
Kruskal's Algorithm
Dijkstra's Algorithm
Which of the following is a component of the CPU responsible for executing instructions?
RAM
CU
ALU
Cache
What does 'HTTPS' stand for?
Hypertext Transfer Protocol Service
Hypertext Transfer Protocol Secure
Hypertext Transmission Protocol Secure
Hyperlink Transfer Protocol Service
Which data structure is used to implement depth-first search (DFS)?
Queue
Stack
Heap
Array
What is the main function of an operating system's kernel?
Manages system resources
Executes application code
Handles user input
Provides networking capabilities
Which of the following is a type of machine learning where the model is trained on labeled data?
Semi-supervised Learning
Unsupervised Learning
Reinforcement Learning
Supervised Learning
What is the purpose of a firewall in network security?
To block unauthorized access
To manage user accounts
To speed up network connections
To store data securely
Which protocol is used for secure file transfer over the network?
SMTP
HTTP
SFTP
FTP
Which programming paradigm emphasizes the use of functions and immutability?
Procedural Programming
Functional Programming
Object-Oriented Programming
Event-Driven Programming
What is the role of a DNS server?
Sends emails
Secures network connections
Translates domain names into IP addresses
Stores website content
Which of the following is NOT a characteristic of object-oriented programming?
Polymorphism
Inheritance
Encapsulation
Procedural Programming
What is the primary purpose of a database index?
To compress data
To speed up data retrieval
To manage user permissions
To create backups
Which of the following is a common technique for optimizing database queries?
Denormalization
Caching
Indexing
Normalization
What is the main purpose of data normalization in databases?
To encrypt sensitive data
To increase data retrieval speed
To reduce redundancy and improve data integrity
To backup data
Which of the following is a version control system used for managing changes in source code?
Docker
Jenkins
Kubernetes
Git
What is the purpose of a constructor in object-oriented programming?
To create methods
To initialize objects
To perform operations
To define classes
What is the main function of a CPU's control unit?
To coordinate the activities of the CPU
To execute instructions
To perform arithmetic operations
To manage data storage
Which of the following is a key concept of functional programming?
Polymorphism
Encapsulation
Immutability
Inheritance
What does the 'ipconfig' command do in Windows?
Manages file permissions
Installs software
Displays network configuration details
Updates the operating system
Which of the following is a major benefit of using a virtual machine?
Decreased security risks
Reduced software complexity
Isolation of applications
Improved physical hardware performance
What does 'OOP' stand for in software development?
Object-Oriented Programming
Optional Object Programming
Organized Object Processing
Open Object Programming
Which sorting algorithm is known for its divide-and-conquer strategy?
Insertion Sort
Bubble Sort
Quick Sort
Selection Sort
What is the purpose of a firewall in computer networks?
To monitor and control incoming and outgoing network traffic
To optimize database performance
To store files securely
To execute code
Which of the following is an example of a cloud storage service?
Postman
Dropbox
GitHub
Jenkins
What is the primary purpose of a DNS server?
To translate domain names into IP addresses
To manage network security
To execute application code
To perform data backups
Which data structure uses FIFO (First In, First Out) principle?
Heap
Queue
Stack
Tree
Which programming language is known for its use in web development and data analysis?
Java
C#
JavaScript
Python
What is the purpose of a web server?
To provide email services
To compile source code
To manage database queries
To host websites and serve web pages
Which type of memory is faster but more expensive, used for high-speed caching?
SSD
HDD
Cache
RAM
What is the term for a bug that is hard to reproduce and identify?
Glimmerbug
Heisenbug
Flickerbug
Shadowbug
Which of the following is a method for managing dependencies in software development?
Compilers
IDEs
Package Managers
Version Control Systems
What is the purpose of encryption in computer security?
To protect data by converting it into a secure format
To store data more efficiently
To manage user permissions
To optimize data retrieval
Which of the following protocols is used to establish secure connections over the internet?
SMTP
HTTP
FTP
TLS
What is the primary function of an operating system’s kernel?
To manage network connections
To execute applications
To manage system resources and hardware
To provide a user interface
Which of the following algorithms is used for shortest path calculations in a graph?
Kruskal's Algorithm
Prim's Algorithm
Dijkstra's Algorithm
Bellman-Ford Algorithm
What does the acronym 'SQL' stand for?
Structured Query Language
Systematic Query Language
Simple Query Language
Sequential Query Language
Which of the following is a common type of network topology?
Ring
All of the above
Star
Bus
What does the 'ls' command do in Unix-based systems?
Lists files and directories
Displays file contents
Deletes files
Changes the directory
What is the purpose of a load balancer in a distributed system?
To distribute incoming network traffic across multiple servers
To encrypt data
To manage database connections
To store user sessions
Which of the following is a dynamic programming algorithm for solving the knapsack problem?
Edit Distance
Longest Common Subsequence
0/1 Knapsack
Knapsack Algorithm
Which of the following is a fundamental concept of object-oriented programming?
Functional Programming
Imperative Programming
Encapsulation
Procedural Code
Which file system is commonly used in Unix-based systems?
EXT4
HFS+
FAT32
NTFS
What is the purpose of a hash function in data structures?
To encrypt data
To sort data
To compress data
To map data to a fixed size
Which of the following is NOT a type of software development methodology?
REST
Scrum
Waterfall
Agile
Which of the following is a common relational database management system (RDBMS)?
MongoDB
PostgreSQL
Cassandra
Redis
What does 'CRUD' stand for in database operations?
Create, Read, Use, Delete
Create, Remove, Update, Delete
Compute, Read, Update, Delete
Create, Read, Update, Delete
Which of the following programming languages is known for its strong typing and use in systems programming?
Python
Java
JavaScript
C
What is the purpose of a proxy server?
To compile code
To act as an intermediary between a user and the internet
To store files securely
To manage network traffic
Which algorithm is used to find the minimum spanning tree of a graph?
Kruskal's Algorithm
Dijkstra's Algorithm
Bellman-Ford Algorithm
A* Algorithm
What does 'TDD' stand for in software development?
Technical Design Documentation
Task-Driven Design
Test-Driven Development
Test-Driven Debugging
Which protocol is used for network time synchronization?
HTTP
SMTP
NTP
FTP
Which data structure is used for implementing recursion?
Queue
Stack
Graph
Tree
What is the main advantage of using a binary search over a linear search?
Faster search times on sorted data
Simpler implementation
Requires less memory
Works on unsorted data
Which type of software testing focuses on the internal workings of an application?
Unit Testing
White-box Testing
System Testing
Integration Testing
Which of the following is an example of a NoSQL database?
PostgreSQL
Oracle
MongoDB
MySQL
What does the acronym 'REST' stand for in web services?
Random State Transfer
Representational State Transfer
Real-Time State Transfer
Reliable State Transfer
Which of the following is a type of cloud service model?
SaaS
IaaS
PaaS
All of the above
What does the 'grep' command do in Unix-based systems?
Lists directory contents
Copies files
Changes file permissions
Searches for patterns within files
Which data structure uses a Last-In-First-Out (LIFO) approach?
Stack
Queue
Deque
Heap
What is the purpose of the 'chmod' command in Unix-based systems?
Change file permissions
Change file ownership
Change file name
Change file location
What is the main role of a compiler in programming?
To execute code directly
To debug code
To translate high-level code into machine code
To manage memory
Which algorithm is used for finding the longest common subsequence between two sequences?
Backtracking
Dynamic Programming
Divide and Conquer
Greedy Algorithm
Which of the following is NOT a type of software testing?
Integration Testing
Security Testing
Unit Testing
System Testing
What is the primary purpose of data normalization in databases?
Increase data retrieval speed
Backup data
Reduce redundancy and improve data integrity
Encrypt data
What does 'API' stand for?
Application Protocol Interface
Automated Programming Interface
Advanced Programming Interface
Application Programming Interface
Which of the following is a common programming paradigm?
All of the above
Procedural Programming
Functional Programming
Object-Oriented Programming
What is a 'thread' in the context of computer processes?
A mechanism for inter-process communication
A method for data encryption
A sequence of instructions executed independently
A lightweight process that shares resources with other threads
Which of the following is a type of cloud computing service model?
Platform as a Service (PaaS)
All of the above
Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
Which algorithm is used for data compression and is a lossless algorithm?
Lempel-Ziv-Welch (LZW)
Huffman Coding
JPEG Compression
Run-Length Encoding
What is the role of a 'bus' in computer architecture?
To facilitate communication between different components
To execute instructions
To store data
To manage network connections
What is the purpose of 'load balancing' in a web server environment?
To distribute traffic evenly across multiple servers
To secure data transmission
To optimize database queries
To manage user sessions
Which data structure is used for implementing a breadth-first search (BFS) algorithm?
Tree
Stack
Heap
Queue
What does 'HTTPS' use to ensure secure data transmission?
FTP
TLS/SSL
HTTP
SMTP
Which programming language is known for its use in web development and its dynamic typing?
JavaScript
C++
Java
Python
What is the function of a 'router' in a network?
Encrypts data
Directs data packets between different networks
Stores data
Manages network traffic
Which type of memory is non-volatile and used for long-term storage?
Registers
RAM
Cache
SSD
Which of the following algorithms is used for sorting a list of elements?
Kruskal's Algorithm
Dijkstra's Algorithm
Merge Sort
Bellman-Ford Algorithm
What is the purpose of a 'debugger' in software development?
To optimize performance
To execute code
To identify and fix errors in code
To manage source code
Which data structure is ideal for implementing a priority queue?
Stack
Array
Heap
Queue
What does 'JSON' stand for in web development?
JavaScript Online Notation
JavaScript Object Network
JavaScript Object Notation
JavaScript Output Notation
Which of the following is a common protocol used for email transmission?
HTTP
NTP
FTP
SMTP
What is the main purpose of a 'sandbox' in computer security?
To manage network traffic
To encrypt data
To isolate and test untrusted code
To backup files
Which algorithm is commonly used to solve the traveling salesman problem?
All of the above
Simulated Annealing
Dynamic Programming
Nearest Neighbor
Which of the following is a type of software development lifecycle model?
Agile
Waterfall
All of the above
Scrum
What does the 'ssh' command do?
Establishes a secure shell connection to a remote system
Lists files in a directory
Changes file permissions
Transfers files between systems
Which data structure is used to implement a hash table?
Tree
Array
Linked List
Graph
What is 'Big O' notation used for in computer science?
To measure network speed
To describe the performance and complexity of an algorithm
To define file formats
To manage system resources
Which protocol is used for transferring files over the internet?
NTP
HTTP
FTP
SMTP
What does the 'alias' command do in Unix-based systems?
Creates shortcuts for commands
Changes file permissions
Changes file ownership
Lists directory contents
Which of the following is a type of cloud service where applications are hosted by a provider and delivered over the internet?
None of the above
Platform as a Service (PaaS)
Software as a Service (SaaS)
Infrastructure as a Service (IaaS)
What is the primary use of the 'tar' command in Unix-based systems?
To create and manipulate archive files
To manage file permissions
To transfer files between systems
To compress files
Which of the following is a type of database index?
Bitmap
Hash
All of the above
B-tree
What does the acronym 'CRUD' stand for in the context of database operations?
Create, Remove, Update, Delete
Create, Read, Update, Delete
Compile, Read, Update, Debug
Create, Remove, Upload, Delete
What is the purpose of a 'repository' in version control systems?
To compile code
To deploy applications
To execute automated tests
To store and manage code changes
Which of the following is a common type of software vulnerability?
All of the above
Cross-Site Scripting (XSS)
Buffer Overflow
SQL Injection
What is the main advantage of using a containerization technology like Docker?
Increased physical hardware performance
Improved data compression
Isolation of applications and their dependencies
Simplified network configuration
Which data structure is commonly used to implement a depth-first search (DFS) algorithm?
Tree
Stack
Array
Queue
Which of the following is a type of database normalization form?
Third Normal Form (3NF)
All of the above
First Normal Form (1NF)
Second Normal Form (2NF)
What is the primary function of a 'virtual machine'?
To emulate a physical computer system
To manage network traffic
To compile source code
To manage hardware resources
Which type of network allows for peer-to-peer communication without a central server?
Client-Server Network
Ad-hoc Network
Bus Network
Star Network
What does the acronym 'HTTP' stand for?
Hypertext Transmission Protocol
Hyperlink Transfer Protocol
High Throughput Transfer Protocol
Hypertext Transfer Protocol
Which of the following is a tool used for continuous integration?
Docker
Jenkins
GitHub
Kubernetes
What is the main benefit of using an 'abstract class' in object-oriented programming?
To optimize performance
To enforce access control
To provide a common base class with shared behavior
To implement interface methods
Which of the following algorithms is commonly used for searching a sorted array?
Binary Search
Depth-First Search
Hash Search
Linear Search
What is the purpose of a 'sitemap' in a website?
To manage user permissions
To provide a hierarchical structure of web pages
To compress website files
To store session data
Which of the following is a statically-typed programming language?
Python
Java
JavaScript
Ruby
What is the purpose of a 'content delivery network' (CDN)?
To distribute content across multiple servers for faster access
To manage web server load
To store user data securely
To monitor network traffic
Which of the following protocols is used to send and receive emails?
FTP
IMAP
HTTP
DNS
What is the primary purpose of 'data encapsulation' in object-oriented programming?
To manage network connections
To hide the internal state and require all interaction to be performed through an object's methods
To optimize memory usage
To ensure data integrity
What is a 'segfault' or 'segmentation fault'?
A compiler warning
A type of error indicating an invalid memory access
A file system error
A network connectivity issue
Which of the following is an example of a programming language used for web front-end development?
JavaScript
Swift
C#
Java
Which of the following is a type of SQL JOIN operation?
LEFT JOIN
All of the above
RIGHT JOIN
INNER JOIN
What does 'CI/CD' stand for in software development?
Continuous Improvement/Continuous Development
Configuration Integration/Configuration Deployment
Continuous Integration/Continuous Deployment
Code Integration/Code Delivery
Which data structure is used to implement a priority queue in many programming languages?
Stack
Linked List
Queue
Heap
What is the primary purpose of an 'operating system'?
To connect to the internet
To compile programs
To manage hardware resources and provide a user interface
To store data
Which algorithm is used to find the shortest path between nodes in a graph?
Kruskal's Algorithm
A* Algorithm
Dijkstra's Algorithm
Prim's Algorithm
What does the 'echo' command do in Unix-based systems?
Lists files in a directory
Displays a line of text or a variable value
Transfers files between systems
Changes file permissions
What is the main purpose of the 'nslookup' command?
To display system information
To test network connectivity
To query DNS records
To list directory contents
What does 'AI' stand for in computer science?
Applied Informatics
Artificial Intelligence
Advanced Integration
Automated Interface
Which data structure is used to implement a depth-first search (DFS)?
Array
Linked List
Queue
Stack
What is the main purpose of an 'API' (Application Programming Interface)?
To manage user permissions
To compile code
To allow different software applications to communicate with each other
To handle user input
Which of the following is a common NoSQL database?
MySQL
MongoDB
SQLite
Oracle
What is the primary role of a 'load balancer' in a web application?
To distribute incoming network traffic across multiple servers
To store files
To manage user sessions
To encrypt data
Which programming language is known for its use in system programming and is often associated with operating systems development?
C
JavaScript
Java
Python
Which of the following is a type of software testing that focuses on the functionality of a system as a whole?
Regression Testing
Unit Testing
Integration Testing
System Testing
Which algorithm is commonly used for data compression?
Prim's Algorithm
Huffman Coding
Dijkstra's Algorithm
Kruskal's Algorithm
What does the acronym 'URL' stand for?
Uniform Resource Locator
Uniform Resource Language
Uniform Resource Link
Universal Resource Locator
Which of the following is a common type of database index?
B-tree
All of the above
Hash
Bitmap
What is the main purpose of a 'proxy server'?
To manage network traffic
To store files
To encrypt data
To act as an intermediary between a client and a server
What does 'TCP/IP' stand for in networking?
Transport Communication Protocol/Internet Protocol
Transmission Communication Protocol/Internet Protocol
Transmission Control Protocol/Internet Protocol
Transport Control Protocol/Internet Protocol
Which data structure is typically used to implement a graph?
Adjacency List
Adjacency Matrix
List
Matrix
Which algorithm is used to solve the 'shortest path' problem in a weighted graph?
All of the above
Dijkstra's Algorithm
A* Algorithm
Bellman-Ford Algorithm
What is the purpose of a 'kernel' in an operating system?
To handle network connections
To manage user accounts
To manage hardware resources and system calls
To compile programs
Which of the following is a common use case for the 'grep' command in Unix-based systems?
Listing files and directories
Copying files
Searching for patterns within files
Changing file permissions
Which of the following is a common software development methodology?
Waterfall
Agile
Scrum
All of the above
What does 'SQL' stand for in database management?
Simple Query Language
Structured Query Language
Sequential Query Language
Standard Query Language
What is the purpose of 'version control' in software development?
To track changes to source code over time
To manage network connections
To handle user authentication
To optimize database queries
Which of the following is a type of search algorithm?
Merge Sort
Quick Sort
Binary Search
Bubble Sort
What does the acronym 'DNS' stand for in networking?
Distributed Name Service
Data Network Storage
Domain Name System
Dynamic Network Service
Which programming language is known for its use in data science and machine learning?
Ruby
Python
C++
JavaScript
What is the primary purpose of 'encryption' in computer security?
To manage user permissions
To compress files
To protect data from unauthorized access
To speed up network connections
Which of the following is a type of database management system?
Relational Database Management System (RDBMS)
All of the above
In-Memory Database
NoSQL Database
What is a 'microservice' in software architecture?
A small, independently deployable service that performs a specific function
A type of database
A large, monolithic application
A network protocol
What is the primary purpose of 'load testing' in software testing?
To test the functionality of individual components
To ensure security compliance
To verify data accuracy
To evaluate how a system performs under a specific load
Which of the following is a common algorithm for encrypting data?
MD5 (Message Digest Algorithm 5)
AES (Advanced Encryption Standard)
SHA (Secure Hash Algorithm)
All of the above
What is the purpose of 'software refactoring'?
To improve the structure and readability of code without changing its behavior
To optimize performance
To fix bugs
To add new features to software
Which of the following is a type of software development model that emphasizes iterative progress through small, incremental improvements?
Waterfall
Agile
Spiral
V-Model
What does 'HTTPS' use to ensure secure communication over the internet?
SMTP
HTTP
FTP
TLS/SSL
Which data structure is used to implement a stack?
Array
Tree
Hash Table
Linked List
What is the role of a 'web server'?
To encrypt communications
To serve web pages to users over the internet
To store user data
To manage network traffic
Which of the following is a common type of database query language?
SQL
XML
CSS
HTML
What is a 'container' in the context of software development?
A programming language
A type of database
A software testing tool
A lightweight, standalone, and executable package that includes everything needed to run a piece of software
What does the 'ping' command test?
The speed of a network connection
The reachability of a network host
The performance of a database
The status of a web server
What is a 'thread' in computer science?
A method for managing network traffic
A type of file system
A sequence of executable instructions that can run concurrently with other threads
A programming language
Which of the following is a type of machine learning algorithm?
All of the above
Neural Networks
Decision Tree
K-Means Clustering
What is the purpose of a 'git repository'?
To store and manage source code and its versions
To deploy applications
To compile code
To manage user permissions
Which data structure is best for implementing a LIFO (Last In, First Out) system?
Queue
Stack
Priority Queue
Deque
What is the purpose of 'data integrity' in databases?
To manage network connections
To ensure the accuracy and consistency of data
To improve database performance
To handle user authentication
What is the main purpose of 'load balancing' in a network?
To encrypt data
To manage data storage
To distribute incoming network traffic across multiple servers
To optimize database queries
Which of the following is a high-level programming language?
Python
Machine Code
Assembly
C
What does 'SSL' stand for in the context of web security?
Simple Security Layer
Secure Systems Layer
Standard Security Layer
Secure Sockets Layer
Which of the following algorithms is used for sorting a list?
Merge Sort
Quick Sort
Bubble Sort
All of the above
What is a 'virtual private network' (VPN)?
A technology that creates a secure, encrypted connection over a less secure network
A network monitoring tool
A type of cloud storage
A web server technology
Which of the following is a relational database management system (RDBMS)?
MongoDB
Redis
Cassandra
MySQL
What does 'HTML' stand for?
High-Level Text Markup Language
HyperText Markup Language
High-Level Text Module
HyperText Multi-language
Which of the following is a type of software license?
All of the above
Apache License
MIT License
GPL (General Public License)
What is the role of a 'firewall' in network security?
To encrypt data
To monitor and control incoming and outgoing network traffic based on predetermined security rules
To store data
To manage user permissions
Which data structure is commonly used to implement a breadth-first search (BFS) algorithm?
Linked List
Queue
Stack
Array
What does 'CRUD' stand for in the context of database operations?
Compile, Read, Update, Debug
Create, Replace, Update, Delete
Create, Remove, Upload, Delete
Create, Read, Update, Delete
What is a 'constructor' in object-oriented programming?
A method used to manage memory
A special method used to initialize objects
A method used to handle errors
A method used to compile code
Which of the following is a key feature of a 'noSQL' database?
Schema flexibility
Structured query language
ACID compliance
Relational data model
What does 'REST' stand for in the context of web services?
Representational State Transfer
Reliable State Transfer
Regular State Transfer
Resource State Transfer
Which programming language is often used for web development and known for its event-driven model?
Java
C#
C++
JavaScript
What is the purpose of a 'cache' in computer systems?
To encrypt data
To store frequently accessed data for faster retrieval
To perform calculations
To manage network traffic
What does 'API' stand for in web development?
Application Protocol Interface
Application Programming Interface
Automated Programming Interface
Active Programming Interface
Which of the following is a common source code management tool?
Ansible
Jenkins
Git
Docker
What is 'big data' commonly used for?
Managing small data sets
Compiling code
Analyzing large and complex data sets to uncover patterns and insights
Encrypting data
Which of the following is a type of software development methodology?
All of the above
Waterfall
Agile
Scrum
What is a 'query' in the context of databases?
A request to delete a file
A command to compile code
A request for data from a database
A type of software license
Which data structure is commonly used to implement a priority queue?
Array
Queue
Heap
Stack

GuruHub

GoogleTag

Google Search

Computer Science General Knowledge Questions and Answers Quiz (Q325)

Which of the following is not a programming language?

What does CPU stand for?

Which data structure uses LIFO (Last In First Out) principle?

What is the time complexity of binary search?

Which protocol is used to send email?

Which of the following is a NoSQL database?

Which of the following sorting algorithms is the fastest in average cases?

What is the main purpose of an operating system?

Which of the following is a version control system?

What is the smallest unit of data in a computer?

Which type of memory is volatile?

Which of the following is a markup language?

In object-oriented programming, which concept refers to bundling data and methods that operate on that data?

Which of the following is an example of a compiled language?

Which algorithm is used for finding the shortest path in a graph?

What does HTTP stand for?

Which of the following is an example of a high-level programming language?

Which of the following is NOT an operating system?

Which of the following data structures is used to implement a graph?

What is the full form of URL?

Which of the following is a primary key in a database?

Which sorting algorithm has the worst-case time complexity of O(n^2)?

What does API stand for?

Which language is primarily used for web development?

Which of the following is NOT a type of machine learning?

Which of the following is used to uniquely identify a device on the internet?

Which of the following is not a relational database management system?

Which of the following is a valid loop structure in Python?

Which layer of the OSI model is responsible for error detection?

What is the main purpose of a firewall?

Which of the following is used to connect a computer to a network?

What is the file extension for a compiled Java file?

Which of the following is NOT a type of operating system?

What is a recursive function?

Which of the following is an immutable data type in Python?

What is the name of the first computer virus?

Which of the following is a cloud computing service model?

In which year was the World Wide Web introduced?

Which of the following is not a component of the CPU?

Which one of the following is a logic gate?

What is the full form of JSON?

Which of the following is a programming paradigm focused on 'objects'?

Which data structure is used in Breadth First Search (BFS) of a graph?

Which of the following is NOT a type of cyber attack?

In SQL, which keyword is used to sort the result set?

Which of the following languages is primarily used for statistical analysis?

What does 'ref' keyword signify in C#?

Which company developed the C programming language?

Which of the following is an example of a distributed version control system?

Which of the following is used for styling HTML documents?

Which of the following is used for creating a virtual machine in cloud computing?

Which search algorithm repeatedly divides the sorted list in half to find an item?

Which of the following is a fundamental operation of a stack?

Which of the following is a Linux-based operating system?

What does FTP stand for?

Which command is used to remove a file in Linux?

What is the name of the process that changes the structure of a database to reduce redundancy?

Which of the following technologies is primarily used for front-end development?

Which of the following is NOT a data type in Java?

Which programming language is most commonly used for Android app development?

Which of the following is NOT an example of cloud storage?

Which data structure uses FIFO (First In First Out) principle?

What is the name of the operating system kernel developed by Linus Torvalds?

Which sorting algorithm is the best for a nearly sorted array?

What is the default port number for HTTP?

Which of the following is a machine learning library for Python?

Which of the following is used for version control in software development?

Which database command is used to remove records from a table in SQL?

Which data structure allows inserting elements at both ends but allows deletion at only one end?

What does DNS stand for?

Which of the following languages is used for data science?

Which of the following best describes Big O notation?

Which of the following is NOT a feature of object-oriented programming?

Which company developed the Java programming language?

Which of the following is an interpreted programming language?

In the OSI model, which layer is responsible for establishing, managing, and terminating connections?