EC-CouncilBlockchain Fintech Certification
Domain 2Objective 1
Blockchain Consensus Mechanisms BFC Practice Questions (Page 6)
Part of the Consensus Mechanisms for Financial Systems domain, which makes up ~11% of our current practice bank.
33questions here
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5concepts
Questions 26–30
- 26
Which trade-off is commonly associated with increasing the block size in a blockchain?
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A blockchain platform for securities settlement is experiencing occasional network partitions. The current consensus mechanism provides probabilistic finality, and after a partition, some confirmed trades are reverted, causing disputes. The platform must ensure that once a trade is confirmed, it is never reverted, even if it means the network may temporarily halt during a partition. Which approach should they adopt?
Select an answer first - 28
A group of non-bank financial institutions is forming a consortium to share KYC data. They need to ensure that no single institution can unilaterally alter the shared records. Which consensus mechanism property is most important?
Select an answer first - 29
Which consensus mechanism requires participants to solve complex mathematical puzzles to propose a new block?
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A blockchain-based insurance claims platform needs to ensure that the network continues to process claims even if some nodes fail or act maliciously. Which consensus property is most relevant to this requirement?
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