A fintech startup is building a cross-border payment network with 15 partner banks. They need to process thousands of transactions per second, keep energy costs low, and ensure that only approved banks can validate transactions. Which consensus mechanism best meets these requirements?

Proof of Stake (PoS) on a public blockchain

Practical Byzantine Fault Tolerance (PBFT) on a consortium blockchain

Delegated Proof of Stake (DPoS) on a consortium blockchain

A financial institution is considering using blockchain for real-time gross settlement (RTGS) of high-value payments. The institution requires that the system be able to process a high throughput of transactions, maintain finality of payments, and comply with regulatory requirements for data privacy. Which blockchain design is most appropriate?

A consortium blockchain with proof of stake and all transactions visible to all members.

A permissioned blockchain with a BFT consensus mechanism and private transactions between participants.

A private blockchain operated by the institution itself, with no external participants.

A public blockchain with proof of work and all transactions visible to everyone.

Which of the following is a common consensus mechanism used in blockchain networks?

Proof of Storage (PoS) - but this is often confused with Proof of Stake

What is the primary role of cryptographic hashing in a blockchain?

To compress the block data to save storage space

To ensure data integrity by producing a unique fingerprint for each block

To encrypt the transaction data so only authorized parties can read it

To generate private keys for users in the network

A cybersecurity auditor is evaluating a blockchain-based trade finance platform. The auditor wants to confirm that once a transaction is recorded, it cannot be silently altered by a malicious participant. Which property of the blockchain should the auditor verify?

The chain uses cryptographic hashes linking each block to the previous one, so any change to a transaction changes the hash of its block and all subsequent blocks.

All participants agree to follow a code of conduct that prohibits alteration.

The network uses a centralized database with daily backups to prevent data loss.

The platform uses a digital signature on each transaction, but blocks are stored in a simple list without hashes.

EC-CouncilBlockchain Fintech Certification

Domain 1Objective 1

Fundamental Concepts and Working Principles of Blockchain Technology BFC Practice Questions (Page 3)

Part of the Blockchain Foundations and FinTech Impact domain, which makes up ~7% of our current practice bank.

46questions here

10free pages

9concepts

Questions 11–15

11application · medium
A fintech startup is building a cross-border payment network with 15 partner banks. They need to process thousands of transactions per second, keep energy costs low, and ensure that only approved banks can validate transactions. Which consensus mechanism best meets these requirements?
Select an answer first
12expert · hard
A financial institution is considering using blockchain for real-time gross settlement (RTGS) of high-value payments. The institution requires that the system be able to process a high throughput of transactions, maintain finality of payments, and comply with regulatory requirements for data privacy. Which blockchain design is most appropriate?
Select an answer first
13foundation · easy
Which of the following is a common consensus mechanism used in blockchain networks?
Select an answer first
14foundation · easy
What is the primary role of cryptographic hashing in a blockchain?
Select an answer first
15application · medium
A cybersecurity auditor is evaluating a blockchain-based trade finance platform. The auditor wants to confirm that once a transaction is recorded, it cannot be silently altered by a malicious participant. Which property of the blockchain should the auditor verify?
Select an answer first

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