Blockchain use cases beyond crypto - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a key benefit of using blockchain for supply chain management?

Blockchain provides transparent and tamper-proof tracking of goods from origin to delivery, improving trust and reducing fraud.

beginner

How does blockchain improve healthcare data management?

It secures patient records with encryption and allows controlled sharing between authorized parties, enhancing privacy and data integrity.

intermediate

What role does blockchain play in digital identity verification?

Blockchain enables users to control their identity data securely and share it without relying on a central authority, reducing identity theft risks.

intermediate

Explain how blockchain can be used in voting systems.

Blockchain can create transparent, tamper-resistant voting records that anyone can verify, increasing election trust and reducing fraud.

advanced

What is a smart contract and how does it extend blockchain use beyond cryptocurrency?

A smart contract is a self-executing code on blockchain that automates agreements and processes without intermediaries, enabling applications like insurance claims and real estate deals.

Which of the following is NOT a benefit of blockchain in supply chain management?

A Improved transparency

B Reduced fraud

C Faster physical delivery of goods

D Tamper-proof records

Blockchain improves tracking and transparency but does not speed up the physical movement of goods.

How does blockchain help secure healthcare data?

A By storing data in a central server

B By encrypting data and controlling access

C By deleting old records automatically

D By sharing data publicly

Blockchain encrypts data and allows only authorized parties to access it, protecting privacy.

What is a smart contract?

A A self-executing program on blockchain

B A blockchain mining tool

C A cryptocurrency wallet

D A legal document signed digitally

Smart contracts are programs on blockchain that run automatically when conditions are met.

In digital identity, blockchain helps by:

A Centralizing all identity data

B Replacing government-issued IDs

C Making identity data public for verification

D Allowing users to control and share their data securely

Blockchain lets users control their identity data and share it securely without a central authority.

Why is blockchain useful in voting systems?

A It creates transparent and tamper-resistant vote records

B It speeds up vote counting by humans

C It allows anyone to change votes

D It replaces physical ballots with paper

Blockchain makes voting records transparent and hard to tamper with, increasing trust.

Describe three real-world uses of blockchain technology beyond cryptocurrency.

Think about industries where trust and data security are important.

Explain how smart contracts extend blockchain's usefulness beyond just handling money.

Consider how agreements can happen automatically without people in the middle.