Free Certified Blockchain Professional (CBCP) Ethereum Questions and Answers

Question 1

Which year saw the development of blockchain technology?

Accepted Answer

2008

Answer

Blockchain technology was first developed in 2008. It was conceptualized by an anonymous entity known as Satoshi Nakamoto, who published a whitepaper describing the technology as the underlying mechanism for the cryptocurrency Bitcoin. The Bitcoin network, the first practical application of blockchain, launched in early 2009.

Question 2

What year did Ethereum get its start?

Accepted Answer

2015

Answer

Ethereum officially got its start with the launch of its mainnet, known as 'Frontier,' in July 2015. While the whitepaper was published in 2013 and development began in 2014, 2015 marked the year the network became operational, allowing developers to deploy smart contracts and decentralized applications.

Question 3

Who did not create Ethereum?

Accepted Answer

Satoshi Nakamoto

Answer

Satoshi Nakamoto is the pseudonymous creator of Bitcoin, not Ethereum. Ethereum was primarily conceived by Vitalik Buterin, with significant contributions from co-founders like Gavin Wood and Charles Hoskinson, among others. Therefore, Satoshi Nakamoto did not create Ethereum.

Question 4

How long does it take to mine a block of Ethereum?

Accepted Answer

0

Answer

After Ethereum's transition to Proof-of-Stake (known as 'The Merge'), the concept of 'mining' a block in the traditional Proof-of-Work sense no longer applies. Instead, blocks are created and attested by validators at fixed intervals (slots), meaning there is no competitive mining process with a variable 'mining time.' Thus, the time to 'mine' a block is effectively 0 in the old sense, as blocks are now scheduled.

Question 5

Choose the consensus algorithm that Ethereum's PoW mechanism will employ.

Accepted Answer

Ethash

Answer

Before its transition to Proof-of-Stake, Ethereum's Proof-of-Work (PoW) mechanism employed the Ethash consensus algorithm. Ethash was specifically designed to be ASIC-resistant, favoring GPU mining to promote decentralization and prevent the dominance of specialized hardware in the network.

CBCP - Certified Blockchain Professional Practice Test

CBCP - Certified Blockchain Professional Practice Test

Free Certified Blockchain Professional (CBCP) Ethereum Questions and Answers