Computer Fundamentals Online Test

Created by

Vikash chaudhary

This 'Computer Fundamentals Online Test' covers questions across all the topics related to Computers from basic to advanced levels.

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: Yes
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1 / 30

1. What are some common algorithms used in supervised learning?

a) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

b) Sorting algorithms, searching algorithms, graph algorithms.

c) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

d) Common algorithms used in supervised learning include linear regression, logistic regression, decision trees, random forests, support vector machines (SVM), and neural networks.

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2. How many gigabytes are in a terabyte (TB)?

a) 1000

b) 1024

c) 2048

d) 4096

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3. What is a variable?

a) A fixed value in a program that cannot be changed.

b) A programming language used for writing code.

c) A placeholder for storing data that can vary or change during the execution of a program.

d) A type of malware.

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4. What is reinforcement learning in machine learning?

a) Reinforcement learning is a type of machine learning where the algorithm learns through trial and error by interacting with an environment, receiving feedback or rewards based on its actions.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) The process of securely storing data on computer systems.

d) The study of computer algorithms and data structures.

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5. What are output devices?

a) Devices used for storing data externally.

b) Devices used for connecting to a network.

c) Devices used for displaying or presenting data or information generated by a computer system.

d) Devices used for entering data and commands into a computer system.

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6. Which network component provides a central point for connecting devices within a network and facilitates communication between them?

a) Router

b) Switch

c) Modem

d) Hub

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7. What is symmetric encryption?

a) An encryption method that uses different keys for encryption and decryption.

b) An encryption method that uses the same key for both encryption and decryption.

c) A type of encryption algorithm.

d) A security mechanism used to protect against unauthorized access to computer systems.

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8. What are some examples of multimedia software?

a) Windows Media Player, VLC Media Player, iTunes.

b) Adobe Photoshop, Adobe Illustrator, CorelDRAW.

c) Microsoft Word, Google Docs, Microsoft Excel.

d) Microsoft PowerPoint, Google Slides, Apple Keynote.

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9. What are data types?

a) Categories of programming languages.

b) A fixed set of values and operations that can be performed on them in a programming language.

c) The process of executing a program.

d) A type of malware.

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10. What is blockchain technology?

a) A decentralized digital ledger that records transactions across multiple computers in a way that is transparent, secure, and immutable.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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11. What is a Merkle tree in blockchain technology?

a) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

b) Sorting algorithms, searching algorithms, graph algorithms.

c) A data structure used to efficiently store and verify the integrity of transactions in a block by organizing them into a hierarchical tree structure of cryptographic hashes.

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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12. What are some examples of IoT applications in smart cities?

a) Smart transportation systems, intelligent energy management, waste management, environmental monitoring, public safety.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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13. What is the process of mining in blockchain technology?

a) Mining is the process of validating and adding new transactions to the blockchain through cryptographic puzzle-solving, typically rewarded with cryptocurrency incentives.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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14. What is the main advantage of using cloud-based spreadsheet software like Google Sheets?

a) Offline access to spreadsheets.

b) Real-time collaboration and sharing of spreadsheets with others.

c) Advanced data analysis tools.

d) Integration with desktop applications.

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15. How does blockchain achieve decentralization?

a) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

b) Sorting algorithms, searching algorithms, graph algorithms.

c) By distributing transaction data across multiple computers (nodes) in a network, eliminating the need for a central authority or intermediary.

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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16. Which network topology provides redundant paths between devices, offering increased reliability and fault tolerance?

a) Bus Topology

b) Star Topology

c) Ring Topology

d) Mesh Topology

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17. What are the common Agile methodologies used in software development?

a) Common Agile methodologies used in software development include Scrum, Kanban, Extreme Programming (XP), Lean, and Feature-Driven Development (FDD), each with its own principles, practices, and frameworks.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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18. Which type of network is designed to connect devices within a specific metropolitan area, such as a city or town?

a) Local Area Network (LAN)

b) Wide Area Network (WAN)

c) Wireless Local Area Network (WLAN)

d) Metropolitan Area Network (MAN)

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19. What is reinforcement learning?

a) Learning from labeled data with input-output pairs to make predictions or classifications.

b) Learning from unlabeled data to discover patterns or structures.

c) Learning through interaction with an environment to maximize rewards.

d) The study of computer algorithms and data structures.

20 / 30

20. What is a Trojan horse?

a) A type of encryption algorithm.

b) Malicious software designed to disrupt, damage, or gain unauthorized access to computer systems or data.

c) A program that self-replicates and spreads by inserting copies of itself into other programs or files.

d) Malware disguised as legitimate software that appears harmless but contains malicious code that performs unauthorized actions when executed.

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21. What is edge computing in the context of IoT?

a) The process of securely storing data on computer systems.

b) The study of computer algorithms and data structures.

c) The practice of processing and analyzing data closer to its source or origin, typically at the edge of the network, rather than relying solely on centralized cloud servers.

d) The physical components of a computer system.

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22. What is a webcam?

a) A device used for capturing images and videos of physical documents.

b) A device used for scanning printed text and converting it into digital format.

c) A device used for capturing images and videos of scenes or individuals, typically for video conferencing or streaming.

d) A device used for controlling video games and simulations.

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23. What is a blockchain fork?

a) A blockchain fork occurs when a blockchain splits into two separate chains due to a change in the consensus rules or disagreement among participants.

b) Sorting algorithms, searching algorithms, graph algorithms.

c) The process of securely storing data on computer systems.

d) The study of computer algorithms and data structures.

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24. How many megabytes are in a gigabyte (GB)?

a) 1000

b) 1024

c) 2048

d) 4096

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25. What are some ethical considerations in the development of artificial intelligence (AI) systems?

a) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

b) Sorting algorithms, searching algorithms, graph algorithms.

c) Some ethical considerations in the development of artificial intelligence (AI) systems include transparency and explainability, fairness and bias mitigation, accountability and responsibility, privacy and data protection, and societal impact and human welfare.

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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26. Which type of memory is directly accessed by the CPU for storing and retrieving data and instructions during program execution?

a) RAM

b) ROM

c) Cache Memory

d) Virtual Memory

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27. What are some potential ethical challenges and risks associated with the use of artificial intelligence (AI) in decision-making processes?

a) TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), DNS (Domain Name System), SSL/TLS (Secure Sockets Layer/Transport Layer Security).

b) Sorting algorithms, searching algorithms, graph algorithms.

c) Some potential ethical challenges and risks associated with the use of artificial intelligence (AI) in decision-making processes include biases and discrimination, lack of transparency and explainability, privacy infringements and surveillance, job displacement and automation, accountability and liability issues, and societal impact and human welfare concerns.

d) CPU (Central Processing Unit), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive).

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28. Which type of network is commonly used in homes, schools, and small businesses to connect devices within a limited area?

a) Local Area Network (LAN)

b) Wide Area Network (WAN)

c) Wireless Local Area Network (WLAN)

d) Metropolitan Area Network (MAN)

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29. Which network device operates at the Physical layer of the OSI model and simply repeats incoming electrical signals to all connected devices?

a) Hub

b) Switch

c) Router

d) Bridge

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30. Which type of network is commonly used to provide internet access to users within a home or office environment?

a) Local Area Network (LAN)

b) Wide Area Network (WAN)

c) Wireless Local Area Network (WLAN)

d) Metropolitan Area Network (MAN)

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This 'Computer Fundamentals Online Test' covers questions across all the topics related to Computers from basic to advanced levels.

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