Grade 12 Quizzes , Questions & Answers

Recent Grade 12 Quizzes

This Proof of Work Basics Quiz tests your understanding of how blockchain networks validate transactions and secure data. Learn about mining, hash functions, difficulty targets, and why computational work proves consensus. Ideal...

Questions: 15 | Attempts: 15 | Last updated: May 1, 2026

Sample Question
What is the primary purpose of Proof of Work in blockchain networks?

To validate transactions and secure the network through computational effort

To store user passwords securely

To increase transaction speed

To eliminate the need for miners

Blockchain Consensus Basics Quiz

This Blockchain Consensus Basics Quiz tests your understanding of how distributed networks validate transactions and reach agreement. You'll explore Proof of Work, Proof of Stake, and other key mechanisms that secure blockchains....

Questions: 15 | Attempts: 12 | Last updated: May 1, 2026

Sample Question
What is a consensus mechanism in blockchain?

A method for distributed networks to agree on valid transactions

A type of cryptocurrency wallet

A central authority that validates blocks

A security encryption algorithm

Cryptocurrency Basics Quiz

This Cryptocurrency Basics Quiz tests your understanding of blockchain technology, digital currencies, and crypto fundamentals. Explore how cryptocurrencies work, their real-world applications, and key concepts like mining and...

Questions: 15 | Attempts: 17 | Last updated: May 1, 2026

Sample Question
What is a blockchain?

A centralized database controlled by banks

A distributed ledger of transactions secured by cryptography

A type of cryptocurrency coin

Software used only by governments

Blockchain in Healthcare Basics Quiz

This Blockchain in Healthcare Basics Quiz evaluates your understanding of how blockchain technology transforms medical record management, patient data security, and healthcare supply chains. Learn why distributed ledgers improve...

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is blockchain's primary advantage for storing patient medical records?

Decentralized, tamper-proof, and immutable record-keeping

Faster internet speeds for hospitals

Reduced cost of paper filing

Easier password management

Smart Contract Use Cases Quiz

This Smart Contract Use Cases Quiz tests your understanding of how smart contracts are applied in real-world scenarios. You'll explore practical applications across finance, supply chain, insurance, and governance. Designed for...

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is a smart contract?

A traditional legal agreement between two parties

Self-executing code on a blockchain that automatically enforces terms when conditions are met

A digital signature used to verify identity

A cryptocurrency wallet for storing tokens

Smart Contract Basics Quiz

This Smart Contract Basics Quiz evaluates your understanding of blockchain technology's self-executing code. You'll explore key concepts including how smart contracts automate agreements, their role in decentralized systems, and...

Questions: 15 | Attempts: 15 | Last updated: May 1, 2026

Sample Question
What is a smart contract?

A legal document signed by two parties

Self-executing code on a blockchain that automatically enforces agreement terms

A traditional contract stored digitally

A cryptocurrency wallet

Block Structure Basics Quiz

This Block Structure Basics Quiz tests your understanding of how blockchain networks organize and validate data. You'll explore key components like blocks, hashes, and chain linking that form the foundation of distributed ledger...

Questions: 15 | Attempts: 11 | Last updated: May 1, 2026

Sample Question
What is a block in a blockchain?

A single transaction record only

A container holding transaction data, timestamp, and hash references

A physical storage device

A type of cryptocurrency wallet

LiDAR Sensor Basics Quiz

Test your understanding of LiDAR sensor technology and its applications in robotics. This LiDAR Sensor Basics Quiz covers how LiDAR works, its key components, real-world uses, and advantages in autonomous systems. Ideal for Grade...

Questions: 15 | Attempts: 25 | Last updated: May 1, 2026

Sample Question
What does LiDAR stand for?

Light Detection and Ranging

Laser Imaging and Data Recording

Light Intensity Detection Array

Linear Distance and Radar

CoAP Protocol Basics Quiz

This CoAP Protocol Basics Quiz evaluates your understanding of Constrained Application Protocol, a lightweight messaging protocol designed for IoT devices with limited resources. You'll explore CoAP's architecture, message types,...

Questions: 15 | Attempts: 14 | Last updated: May 1, 2026

Sample Question
What does CoAP stand for?

Constrained Application Protocol

Connected Application Protocol

Compact Application Protocol

Core Application Protocol

Industrial IoT Devices Quiz

This Industrial IoT Devices Quiz assesses your understanding of connected technologies used in manufacturing and industrial settings. You'll explore sensors, data transmission, automation systems, and real-world applications of...

Questions: 15 | Attempts: 14 | Last updated: May 1, 2026

Sample Question
What is the primary purpose of Industrial IoT (IIoT) devices in manufacturing?

To collect and transmit data for process optimization

To replace all human workers

To reduce the cost of raw materials

To eliminate the need for quality control

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