A consortium of banks wants to run a permissioned blockchain for cross-border payments. They need to process thousands of transactions per second, but each member bank must retain control over its own validator nodes and be able to audit the full transaction history. Which architectural approach best meets these requirements?

Implement a layer-2 state channel on a public blockchain to increase throughput and keep all transaction data on-chain.

Adopt a public blockchain with a proof-of-stake consensus and rely on off-chain databases for audit trails.

Use a permissioned blockchain with a practical Byzantine fault tolerance (PBFT) consensus and a private, shared ledger.

Deploy a sharded public blockchain where each bank runs a validator in a different shard.

A startup wants to build a decentralized application (dApp) that requires complex business logic and frequent updates. They want to use a platform with strong developer tooling and a mature ecosystem. Which platform is most appropriate?

Ethereum with Solidity and a rich set of development frameworks

A custom blockchain built from scratch

Hyperledger Fabric with Go chaincode and limited tooling

Corda with Kotlin and a niche developer community

A cross-industry consortium (finance, healthcare, and logistics) wants to build a shared blockchain. Finance requires high throughput and finality; healthcare requires strict privacy and consent-based data sharing; logistics needs to interoperate with existing supply chain systems. The consortium is considering a single sharded public blockchain, a permissioned blockchain with private transactions, and a set of interconnected private blockchains. Which option best balances all three requirements?

A set of isolated private blockchains with no cross-chain communication

A permissioned blockchain with private transactions and interoperability protocols

A public blockchain with a layer-2 privacy solution

A single sharded public blockchain with on-chain encryption

A gaming company wants to launch a blockchain-based game with millions of players, each performing frequent micro-transactions. They need low transaction fees and fast finality. Which architectural approach is most suitable?

Use a main blockchain with a state channel for every player pair

Use a layer-2 solution such as a rollup on top of a main blockchain

Use a private blockchain with a small validator set and no layer-2

Use a single-shard blockchain with on-chain transactions only

A consortium of banks wants to use blockchain for interbank transfers. They require high throughput and low latency, but they also need to ensure that the network remains secure against a small number of malicious validators. Which consensus mechanism should they choose?

Proof-of-Stake (PoS) with a large validator set

Practical Byzantine Fault Tolerance (PBFT)

EC-CouncilBlockchain Business Leader Certification

Domain 9Objective 1

Innovations in Blockchain Architecture and Smart Contract Platforms BBLC Practice Questions (Page 1)

Part of the Advanced Concepts and Enterprise Blockchain Strategy domain, which makes up ~13% of our current practice bank.

35questions here

7free pages

3concepts

Questions 1–5

1application · medium
A consortium of banks wants to run a permissioned blockchain for cross-border payments. They need to process thousands of transactions per second, but each member bank must retain control over its own validator nodes and be able to audit the full transaction history. Which architectural approach best meets these requirements?
Select an answer first
2application · medium
A startup wants to build a decentralized application (dApp) that requires complex business logic and frequent updates. They want to use a platform with strong developer tooling and a mature ecosystem. Which platform is most appropriate?
Select an answer first
3expert · hard
A cross-industry consortium (finance, healthcare, and logistics) wants to build a shared blockchain. Finance requires high throughput and finality; healthcare requires strict privacy and consent-based data sharing; logistics needs to interoperate with existing supply chain systems. The consortium is considering a single sharded public blockchain, a permissioned blockchain with private transactions, and a set of interconnected private blockchains. Which option best balances all three requirements?
Select an answer first
4application · medium
A gaming company wants to launch a blockchain-based game with millions of players, each performing frequent micro-transactions. They need low transaction fees and fast finality. Which architectural approach is most suitable?
Select an answer first
5application · medium
A consortium of banks wants to use blockchain for interbank transfers. They require high throughput and low latency, but they also need to ensure that the network remains secure against a small number of malicious validators. Which consensus mechanism should they choose?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to BBLC

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by EC-Council. “BBLC” is a trademark of its owner, used for identification only.

Innovations in Blockchain Architecture and Smart Contract Platforms BBLC Practice Questions (Page 1)

Questions 1–5

A startup wants to build a decentralized application (dApp) that requires complex business logic and frequent updates. They want to use a platform with strong developer tooling and a mature ecosystem. Which platform is most appropriate?

A gaming company wants to launch a blockchain-based game with millions of players, each performing frequent micro-transactions. They need low transaction fees and fast finality. Which architectural approach is most suitable?

A consortium of banks wants to use blockchain for interbank transfers. They require high throughput and low latency, but they also need to ensure that the network remains secure against a small number of malicious validators. Which consensus mechanism should they choose?

Keep studying — Advanced Concepts and Enterprise Blockchain Strategy