A multinational healthcare provider is implementing a blockchain to share patient data across borders. They must comply with GDPR, which restricts data transfers outside the EU. They also need to ensure that only authorized healthcare professionals can access patient records. Which approach best satisfies both requirements?

Use a public blockchain with encrypted data

Deploy a permissioned blockchain with nodes only in EU regions and implement smart contracts for access control

Use a permissioned blockchain with nodes in multiple countries, including non-EU

Store all data off-chain and use blockchain only for hashes

A financial institution is implementing a blockchain for cross-border payments. They must comply with anti-money laundering (AML) regulations and need to ensure that only authorized parties can view transaction details. Which consideration is most important?

Storing all transaction data off-chain

Designing the network with permissioned access and integrating identity management

Using a public blockchain for transparency

Implementing a consensus algorithm that requires no identity verification

A government agency is implementing a blockchain for public procurement. They need to ensure that the system is auditable and that all participants are known. Which implementation approach is most appropriate?

A smart contract that automatically awards contracts

A private database with no shared ledger

A public blockchain with anonymous participants

A permissioned blockchain with strong identity management

A pharmaceutical company wants to track temperature-sensitive vaccines from manufacturing to administration. They need to share data with regulators, hospitals, and logistics partners, but they also need to keep proprietary formulation details confidential. Which approach best meets these needs?

Deploy a public blockchain and encrypt all data on-chain

Use a single shared ledger with all participants having full visibility

Store all data off-chain in a central database and only hash it on-chain

Use Hyperledger Fabric with private data collections and channel-specific access

A government agency wants to issue digital credentials to citizens and allow employers to verify them without contacting the agency. They require tamper-evident records and want to avoid running their own blockchain infrastructure. Which implementation consideration is most critical?

Designing a revocation mechanism for credentials that are no longer valid

Selecting a consensus algorithm that minimizes energy consumption

Ensuring the verification process is decentralized and does not require the issuing agency's involvement

Choosing a permissioned platform to ensure only the agency can issue credentials

EC-CouncilBlockchain Developer Certification

Domain 8Objective 5

Enterprise Blockchain Platforms and Industry-Specific Use Cases BDC Practice Questions (Page 5)

Part of the Enterprise Blockchain Platforms domain, which makes up ~10% of our current practice bank.

30questions here

6free pages

4concepts

Questions 21–25

21expert · hard
A multinational healthcare provider is implementing a blockchain to share patient data across borders. They must comply with GDPR, which restricts data transfers outside the EU. They also need to ensure that only authorized healthcare professionals can access patient records. Which approach best satisfies both requirements?
Select an answer first
22application · medium
A financial institution is implementing a blockchain for cross-border payments. They must comply with anti-money laundering (AML) regulations and need to ensure that only authorized parties can view transaction details. Which consideration is most important?
Select an answer first
23application · medium
A government agency is implementing a blockchain for public procurement. They need to ensure that the system is auditable and that all participants are known. Which implementation approach is most appropriate?
Select an answer first
24application · medium
A pharmaceutical company wants to track temperature-sensitive vaccines from manufacturing to administration. They need to share data with regulators, hospitals, and logistics partners, but they also need to keep proprietary formulation details confidential. Which approach best meets these needs?
Select an answer first
25application · medium
A government agency wants to issue digital credentials to citizens and allow employers to verify them without contacting the agency. They require tamper-evident records and want to avoid running their own blockchain infrastructure. Which implementation consideration is most critical?
Select an answer first

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