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Grade 12 Quizzes, Questions & Answers

Recent Grade 12 Quizzes

Blockchain in Healthcare Basics Quiz

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

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

Questions: 15 | Attempts: 10 | 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

Questions: 15 | Attempts: 10 | 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

Questions: 15 | Attempts: 12 | 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

Questions: 15 | Attempts: 11 | 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

Questions: 15 | Attempts: 10 | 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

IoT Communication Protocols Quiz

Questions: 15 | Attempts: 20 | Last updated: May 1, 2026

Sample Question
Which protocol is specifically designed for low-power, wide-area networks (LPWAN) and is ideal for IoT devices with limited battery life?

LoRaWAN

HTTP/2

Ethernet

USB

Edge vs Cloud Computing Quiz

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

Sample Question
What is the primary advantage of edge computing compared to cloud computing?

Reduced latency by processing data closer to the source

Lower infrastructure costs across all deployments

Unlimited storage capacity at every location

Automatic data backup to multiple servers

Block Storage Basics Quiz

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

Sample Question
What is block storage primarily used for in cloud environments?

Storing unstructured data like images and videos

Providing persistent storage volumes for virtual machines

Archiving old backups for long-term retention

Distributing content globally to end users

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