BC4

Modern web systems are typically structured in various application or functional layers. Which layer do you see blockchain being deployed?

• Data

• Network

• Authorisation

• Integration

When setting up a blockchain ecosystem, what are the pillars to support a successful implementation?

• Technology, Business Value, Governance Model, Standards and Interoperability.

• Consensus, Provenance, Immutability and Finality

• Trust, Infrastructure and Processes

• Miners, Wallet Applications, Exchanges and E-Commerce

Choose the best use-case for blockchain.

• Track location of pets

• Sharing food recipes

• Art piece valuation and appreciation

• Cross border payment settlement

Match the following statements.

1. Decentralized Identifier is ...

2. Verifiable credential is ...

3. Digital identities in blockchain provides ...

A. cryptographically backed statements of truth

B. trust, privacy and scale

C. URL to relate an identity for trusted interaction

• 1:C, 2:A, 3:B

• 1:A, 2:C, 3:B

• 1:C, 2:B, 3:A

• No match

In Food Trust, which challenges does blockchain is aimed to address?

• Trust

• Transparency

• Data immunity

• Dispute Resolution

• All of the above