FREE Certified Blockchain Professional (CBCP) Ethereum Questions and Answers
What do Ethereum uncle blocks consist of?
Uncle blocks are legitimate blocks that the Ethereum network has rejected. The canonical chain is not mined for these blocks. In order to compensate miners who mine uncle blocks, the GHOST protocol was proposed.
Which of the following distinguishes Ethereum from Bitcoin?
Scrypt is turing-complete in terms of security, whereas Solidity on Ethereum is turing-incomplete. The latter (solidity/Vyper) provides looping functionality, whereas the former does not, therefore we know that there is no possibility of infinite loops. Ethereum leverages the idea of gas and gas taxes to address the problems of infinite loops.
How many Ether were there at the time Ethereum was created?
There were 72 million Ether created at launch. Unless we can modify the root of trust and its subsequent blocks (the entire network), or at least 51%, which is nearly impossible, there will only ever be 21 million Bitcoin in existence.
What distinguishes Bitcoin from Ethereum?
Unlike Bitcoin, Ethereum was funded using a crowdsourcing platform. The biggest crowd funding effort was Ethereum's. A public offering to invest in a digital asset is known as a crowd sale in the cryptocurrency sector. This could be a native coin, an NFT, a blockchain, a decentralized application atop a blockchain, or a token. Crowdsales are mostly used to raise money for a project's or business venture's development.
What does Ethereum's Ghost protocol entail?
What do Ethereum uncle rewards entail?
Miners that produce uncle blocks and put them in a legitimate block that is uploaded to the canonical network are given benefits known as uncle rewards.
In the context of Ethereum, what is gas?
The cost of a transaction on the Ethereum network is called gas. Gas costs paid by the transaction originator serve as an incentive for miners, who donate their computational resources to the network's management.
Which of the following best sums up Ethereum?
The native money of Ethereum, a distributed computer system, is called ether. Although it costs gas to change the state of the world from the computer because calculations must be made, reading the current state of the world is free.
What do Ethereum main blocks consist of?
Ommer blocks are made when two miners mine the following block simultaneously. In this scenario, only one block will be put to the ledger; the rest are known as ommer blocks.
What year did Ethereum get its start?
In 2013, Vitalik Buterin and other inventors Gavin Wood, Charles Hoskinson, Anthony Di Iorio, and Joseph Lubin came up with the idea for the Ethereum blockchain network. Unlike Bitcoin, the development of decentralized applications was made possible by the crowdfunded project Ethereum.
Which year saw the development of blockchain technology?
Blockchain or blockchain-like technology was first mentioned in a dessertation by a cryptographer named David Chaum in 1982. The idea for the Bitcoin blockchain system was the first use of blockchain technology in 2008. By adding a consensus mechanism (proof-of-work), which is what keeps the Bitcoin blockchain secure, Satoshi Nakamoto refined the notion. A blockchain was first designed as a tamper-proof mechanism.
Who did not create Ethereum?
The blockchain for Bitcoin, NOT Ethereum, was created by Satoshi Nakamoto. By Vitalik Buterin, Ethereum was revealed in a white paper. It suggested a blockchain that is turing-complete and has additional capabilities besides serving as a storage and medium of exchange for money. Later, the remaining founders joined the effort to establish Ethereum, notably financier Anthony Di Iorio.
What do Ethereum's ommer rewards blocks do?
When two competing miners in Ethereum create a block at about the same moment, only one is chosen; the remaining blocks are referred to as ommer blocks. Ommer miners are also rewarded for enhancing network security.
When was the genesis block of Ethereum mined?
The genesis block is the initial block that is mined in a blockchain network. For the entire blockchain network, it serves as the foundation of trust. A foundation of trust must be built for a system to be secure. Consider the layers of an onion and the steps necessary to get to the center layer. Similar security mechanisms are used by blockchains, where each layer/block builds upon a more reliable inner layer using access control, cryptography, hashing, and encryption as well as other security primitives. For instance, the Satoshi Nakamoto-mined genesis block serves as the foundation of trust for the whole Bitcoin blockchain.
Choose the consensus algorithm that Ethereum's PoW mechanism will employ.
The Ethereum blockchain network uses the proof-of-work mining algorithm called Ethash. The Dagger Hashimoto method has been modified to create Etchash and Ethash. Both are utilized by Ethereum, a cryptocurrency, and Ethereum Classic, a hard fork of Ethereum brought on by the DAO hack. However, there was a workaround and manufacturers were able to implement the algorithm inside ASCI chips. Originally, Ethash was intended to decentralize the network by preventing mining control by ASCI miners. Ethereum switched to the proof-of-stake consensus process, which does not use mining, to address issue.
How long does it take to mine a block of Ethereum?
In less than a minute, an Ethereum block is mined. A new Ethereum block is mined every 12 to 14 seconds, depending on the difficulty, network traffic, and hashing power, among other things. A cryptographic puzzle is solved by miners using processing power in a proof-of-work consensus mechanism.