Use Cases Flashcards
7 cards from real Blockchain Technology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Use Cases flashcards as text
Which blockchain use case enables patients to control access to their medical records across different healthcare providers?
Answer: Decentralized health data exchange
Decentralized health data exchange on blockchain lets patients grant and revoke provider access to their records via cryptographic keys.
How does blockchain improve cross-border payment settlement compared to traditional SWIFT transfers?
Answer: It settles transactions in minutes with lower fees
Blockchain-based cross-border payments bypass correspondent banks, settling in minutes at a fraction of traditional wire transfer costs.
A music streaming platform uses blockchain to automate royalty payments. What triggers the payment in this smart contract model?
Answer: Each verified stream or download event
Smart contracts can trigger micropayments to artists and rights holders automatically each time a verified stream event is recorded on-chain.
In the context of decentralized identity, what is a 'self-sovereign identity' (SSI)?
Answer: An identity the user owns and presents without relying on a central authority
SSI allows individuals to own their digital credentials and share them selectively without depending on a central identity provider.
Which industry uses blockchain-based tokenization to fractionalize ownership of high-value assets like real estate or fine art?
Answer: Decentralized finance (DeFi)
DeFi platforms tokenize real-world assets, splitting ownership into digital tokens so smaller investors can hold fractions of high-value properties or artwork.
A retailer wants to verify that diamonds in its supply chain are conflict-free. Which blockchain property makes this possible?
Answer: Immutable provenance records at each custody transfer
Each custody transfer is recorded as an immutable on-chain event, creating an auditable provenance trail from mine to retailer.
What role does blockchain play in a decentralized energy grid where households sell excess solar power to neighbors?
Answer: It records peer-to-peer energy trades and automates settlement
Blockchain records each kilowatt-hour traded between prosumers and executes smart contract payments without a utility intermediary.