EC-Council 312-82 EC-Council Blockchain Fintech Certification B|FC exam Online Training

EC-Council 312-82 Online Training

The questions for 312-82 were last updated at Feb 19,2025.

Exam Code: 312-82
Exam Name: EC-Council Blockchain Fintech Certification B|FC exam
Certification Provider: EC-Council
Latest update: Feb 19,2025

Question #1

Public blockchains most often use________ as a consensus mechanism.

A . PoS
B . PoB
C . PoW
D . PoET

Correct Answer: C
C

Explanation:

Public blockchains most commonly use Proof of Work (PoW) as their consensus mechanism, especially in well-established networks such as Bitcoin and, until recently, Ethereum. PoW is a protocol that relies on network participants (miners) solving complex mathematical problems to validate and add transactions to the blockchain. This process ensures the integrity and security of the network, as it requires substantial computational power and resources, making it difficult for any single entity to control the blockchain.

Key Details:

Proof of Work (PoW): PoW, used primarily by Bitcoin, operates by having participants (often referred to as miners) compete to solve cryptographic puzzles. The first to solve the puzzle adds the next block of transactions to the blockchain and is rewarded with newly minted coins. This system is energy-intensive but is widely recognized for its security and resistance to tampering.

Transition in Other Networks: While Ethereum initially used PoW, it transitioned to Proof of Stake (PoS) in 2022 with Ethereum 2.0, due to PoS’s lower energy requirements and increased scalability. However, Bitcoin, the most prominent public blockchain, still relies on PoW.

Other Consensus Mechanisms: Alternatives such as Proof of Stake (PoS) and Proof of Burn (PoB) are used by other blockchain networks that aim for different trade-offs in terms of energy efficiency, scalability, and security. Proof of Elapsed Time (PoET) is another mechanism mostly associated with permissioned (private) blockchains rather than public blockchains.

Why PoW for Public Blockchains?: Public blockchains prioritize decentralization and security. PoW provides a robust way to achieve this, despite its high energy consumption. Its high level of security and historical success in Bitcoin’s network often make it the go-to choice for public blockchains.

In summary, the dominance of PoW in public blockchains is due to its established security and proven track record, although PoS and other mechanisms are increasingly gaining popularity for their efficiency in newer blockchain projects.

Question #2

Is a Microsoft blockchain development platform that allows the creation of custom private blockchains.

A . Sratis
B . Corda
C . Azure
D . Fabric

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Question #3

Proof of work algorithms are best described as being used for what?

A . Executing transactions
B . Proof that adequate computational resources have been sent.
C . Bitcoin mining
D . Proving the user has invested enough in the system

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Question #4

________is used to split up the tasks into multiple chunks that are then processed by multiple nodes.

A . Sharding
B . Parsing
C . Partitioning
D . Fragmenting

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Question #5

These wallets store keys in a tree structure derived from a seed.

A . Brain Wallets
B . Hierarchical Deterministic Wallets
C . Deterministic Wallets
D . Non-Deterministic Wallets

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Question #6

Which of the following are likely use cases for blockchain in the energy industry? (Select two.)

A . Safety in energy production
B . Energy trading
C . Safety in energy transport
D . Smart power grids

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Question #7

_______uses a Trusted Execution environment (TEE) to provide randomness and safety in the leader election process via a guaranteed wait time.

A . PoET
B . PoD
C . PoA
D . Pol

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Question #8

A________in a new chain and requires clients to upgrade in order to participate on the new blockchain.

A . Hard fork
B . Soft fork
C . Sharding
D . Sub chain

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Question #9

______is a computer program that runs stop a blockchain and embedded within it are governance and business logic rules

A . Dapps
B . DaS
C . DAO
D . DAC

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Question #10

What is a DEX

A . A distributed exchange that covers multiple nationalities
B . A cryptocurrency exchange such as coinbase
C . A decentralized exchanged that allows users to exchange cryptocurrency directly
D . A Decentralized finance app or DApp

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