Blockchain Use Cases Questions and Answers

Question 1

A luxury goods consortium wants to combat the multi-billion dollar counterfeit market by providing customers with a way to verify product authenticity.
How could a blockchain-based solution most effectively address this problem?

Accepted Answer

By minting a unique, non-fungible token (NFT) for each product, recording its provenance from creation to sale on an immutable ledger.

Answer

By developing a centralized database managed by the consortium to list all authorized retailers.

Answer

By creating a cryptocurrency to be used exclusively for purchasing authentic luxury goods.

Answer

By publishing the material specifications of each product on a public blockchain to allow for self-verification.

Question 2

A user wants to apply for a loan online. Using a Self-Sovereign Identity (SSI) model built on blockchain, how would the user typically prove their identity and income to the lender?

Accepted Answer

By presenting digitally signed, verifiable credentials from trusted issuers (e.g., government, employer) that the lender can cryptographically validate.

Answer

By uploading their physical ID and pay stubs directly to a public, permissionless blockchain for the lender to access.

Answer

By sending the private keys to their identity wallet to the lender, granting them temporary access to all identity documents.

Answer

By connecting their social media profiles, which act as a centralized identity provider, to the lender's application portal.

Question 3

Which of the following is a primary benefit of using a blockchain-based system for national elections?

Accepted Answer

Providing a publicly auditable and tamper-evident record of votes cast.

Answer

Allowing citizens to change their vote at any time before the election closes.

Answer

Guaranteeing complete voter anonymity by not recording any transaction data.

Answer

Significantly reducing election costs by completely eliminating the need for physical polling stations.

Question 4

In the context of Decentralized Finance (DeFi), what is the primary purpose of a decentralized exchange (DEX)?

Accepted Answer

To facilitate peer-to-peer trading of digital assets directly from users' wallets without a central intermediary.

Answer

To provide custodial services where the exchange holds and secures users' crypto assets.

Answer

To underwrite insurance policies against potential smart contract failures.

Answer

To issue government-backed fiat currencies for use in crypto-to-crypto trades.

Question 5

What is the principal advantage of tokenizing an illiquid asset, such as a large commercial real estate building, on a blockchain?

Accepted Answer

It enables fractional ownership and improves liquidity by allowing the asset to be traded as smaller, digital shares on secondary markets.

Answer

It eliminates the need for property insurance and local government registration.

Answer

It automates building maintenance and security through the use of smart contracts.

Answer

It guarantees a higher return on investment compared to non-tokenized real estate assets.

Question 6

A key objective of the U.S. Drug Supply Chain Security Act (DSCSA) is to trace prescription drugs to prevent counterfeit products from entering the market. Which blockchain feature is most critical for meeting this objective?

Accepted Answer

The creation of an immutable, time-stamped, and auditable record of a drug's custody as it moves through the supply chain.

Answer

The ability for anyone to anonymously add transactions to the ledger.

Answer

The use of a native cryptocurrency to incentivize network validators.

Answer

The automation of drug manufacturing processes via smart contracts.