Ethereum is a decentralized, open-source blockchain platform that serves as the foundation for a vast ecosystem of decentralized applications (dApps) and smart contracts. Launched in 2015 by Vitalik Buterin, it goes beyond simple cryptocurrency transactions by enabling programmable transactions through its native token, Ether (ETH).
At its core, Ethereum allows developers to create self-executing contracts—known as smart contracts—that automatically enforce the terms of an agreement without intermediaries. This innovation has powered diverse applications, including decentralized finance (DeFi), non-fungible tokens (NFTs), and secure data storage.
Unlike traditional blockchains like Bitcoin, Ethereum’s flexibility supports a global network of nodes that maintain its integrity through proof-of-stake consensus, making it more energy-efficient since its transition to Ethereum 2.0. With its expansive community and ongoing upgrades, Ethereum continues to drive innovation in the blockchain space, fostering a more transparent and accessible digital economy.
Table of contents
- Part 1: Create an amazing Ethereum quiz using AI instantly in OnlineExamMaker
- Part 2: 20 Ethereum quiz questions & answers
- Part 3: Automatically generate quiz questions using AI Question Generator
Part 1: Create an amazing Ethereum quiz using AI instantly in OnlineExamMaker
Nowadays more and more people create Ethereum quizzes using AI technologies, OnlineExamMaker a powerful AI-based quiz making tool that can save you time and efforts. The software makes it simple to design and launch interactive quizzes, assessments, and surveys. With the Question Editor, you can create multiple-choice, open-ended, matching, sequencing and many other types of questions for your tests, exams and inventories. You are allowed to enhance quizzes with multimedia elements like images, audio, and video to make them more interactive and visually appealing.
Recommended features for you:
● Prevent cheating by randomizing questions or changing the order of questions, so learners don’t get the same set of questions each time.
● Automatically generates detailed reports—individual scores, question report, and group performance.
● Simply copy a few lines of codes, and add them to a web page, you can present your online quiz in your website, blog, or landing page.
● Offers question analysis to evaluate question performance and reliability, helping instructors optimize their training plan.
Automatically generate questions using AI
Part 2: 20 Ethereum quiz questions & answers
or
1. Question: What is Ethereum primarily known for?
Options:
A. Being a digital currency like Bitcoin
B. Enabling smart contracts and decentralized applications (dApps)
C. Facilitating fast international money transfers
D. Serving as a centralized database system
Answer: B
Explanation: Ethereum is a blockchain platform that allows for the creation and execution of smart contracts, which are self-executing contracts with the terms directly written into code, enabling dApps.
2. Question: Who is the founder of Ethereum?
Options:
A. Satoshi Nakamoto
B. Vitalik Buterin
C. Charles Hoskinson
D. Roger Ver
Answer: B
Explanation: Vitalik Buterin proposed Ethereum in 2013 and co-founded it in 2015, aiming to create a more versatile blockchain beyond just currency.
3. Question: What is the native cryptocurrency of Ethereum called?
Options:
A. Bitcoin
B. Ether
C. Litecoin
D. Ripple
Answer: B
Explanation: Ether (ETH) is the cryptocurrency used on the Ethereum network to pay for transaction fees and computational services.
4. Question: Which consensus mechanism did Ethereum originally use?
Options:
A. Proof of Stake
B. Proof of Work
C. Proof of Authority
D. Proof of Burn
Answer: B
Explanation: Ethereum initially used Proof of Work, similar to Bitcoin, where miners solve complex puzzles to validate transactions and add blocks.
5. Question: What is a smart contract in Ethereum?
Options:
A. A legal document signed on paper
B. Self-executing code on the blockchain
C. A traditional banking contract
D. An off-chain agreement
Answer: B
Explanation: Smart contracts are programs stored on the Ethereum blockchain that automatically execute when predetermined conditions are met, reducing the need for intermediaries.
6. Question: What is the Ethereum Virtual Machine (EVM)?
Options:
A. A physical server for mining
B. A decentralized computing environment
C. A runtime environment for smart contracts
D. A user interface for wallets
Answer: C
Explanation: The EVM is a Turing-complete virtual machine that executes smart contract code on the Ethereum network in a decentralized manner.
7. Question: How does Ethereum 2.0 differ from the original Ethereum?
Options:
A. It removes smart contracts
B. It transitions to Proof of Stake from Proof of Work
C. It eliminates the need for Ether
D. It focuses only on private blockchains
Answer: B
Explanation: Ethereum 2.0, also known as Eth2 or Serenity, aims to improve scalability and energy efficiency by shifting to Proof of Stake, where validators stake ETH instead of mining.
8. Question: What is gas in the context of Ethereum transactions?
Options:
A. A type of cryptocurrency
B. The unit that measures the computational effort for transactions
C. A physical resource for mining
D. An alternative name for Ether
Answer: B
Explanation: Gas is a measurement of the computational work required to process a transaction or execute a contract on Ethereum, and users pay for it in Ether.
9. Question: Which programming language is commonly used for writing Ethereum smart contracts?
Options:
A. Java
B. Solidity
C. Python
D. C++
Answer: B
Explanation: Solidity is a high-level language designed specifically for writing smart contracts on the Ethereum blockchain.
10. Question: What is the purpose of the Ethereum Improvement Proposals (EIPs)?
Options:
A. To propose new cryptocurrencies
B. To suggest changes and improvements to the Ethereum protocol
C. To regulate user wallets
D. To handle legal disputes on the network
Answer: B
Explanation: EIPs are formal documents that outline standards, changes, or new features for the Ethereum platform, allowing community input and development.
11. Question: How does sharding work in Ethereum 2.0?
Options:
A. It combines all nodes into one shard
B. It divides the network into smaller chains to improve scalability
C. It removes the blockchain entirely
D. It increases mining rewards
Answer: B
Explanation: Sharding breaks the Ethereum network into multiple shards or subsets, allowing parallel processing of transactions to enhance speed and efficiency.
12. Question: What is a decentralized application (dApp) on Ethereum?
Options:
A. An app controlled by a single company
B. An application that runs on a blockchain and is open-source
C. A mobile app for trading stocks
D. A centralized server-based program
Answer: B
Explanation: dApps on Ethereum are built on blockchain technology, are open-source, and operate without a central authority, ensuring transparency and decentralization.
13. Question: Why is Ethereum considered Turing-complete?
Options:
A. It can perform any computation given enough resources
B. It only handles simple transactions
C. It is limited to financial operations
D. It requires human intervention for every task
Answer: A
Explanation: Ethereum’s EVM is Turing-complete, meaning it can theoretically compute any algorithm, allowing for complex smart contracts and applications.
14. Question: What role do nodes play in the Ethereum network?
Options:
A. They store and validate transactions
B. They act as banks for users
C. They generate physical currency
D. They control user access
Answer: A
Explanation: Nodes in Ethereum maintain the blockchain by storing data, validating transactions, and ensuring the network’s integrity through consensus.
15. Question: What is the Beacon Chain in Ethereum 2.0?
Options:
A. A new cryptocurrency
B. The backbone that manages the Proof of Stake system
C. A tool for mining Ether
D. A user wallet interface
Answer: B
Explanation: The Beacon Chain coordinates the Proof of Stake mechanism in Ethereum 2.0, managing validators and ensuring network security and coordination.
16. Question: How does Ethereum handle forks in the blockchain?
Options:
A. By ignoring them completely
B. Through community consensus to choose the valid chain
C. By automatically deleting invalid blocks
D. By requiring government approval
Answer: B
Explanation: Ethereum uses community-driven consensus, such as hard forks, to resolve disagreements and maintain the integrity of the blockchain.
17. Question: What is the significance of the DAO hack in Ethereum’s history?
Options:
A. It introduced a new currency
B. It led to a hard fork to recover stolen funds
C. It eliminated smart contracts
D. It was a minor event with no impact
Answer: B
Explanation: The 2016 DAO hack exploited a vulnerability in a smart contract, resulting in a hard fork to create Ethereum (ETH) and Ethereum Classic (ETC), highlighting security issues.
18. Question: What is MEV (Miner Extractable Value) in Ethereum?
Options:
A. A reward for miners
B. The profit miners can make by reordering transactions
C. A type of smart contract
D. A network upgrade
Answer: B
Explanation: MEV refers to the value miners can extract by strategically ordering, including, or censoring transactions in a block, often leading to debates on fairness.
19. Question: How does Ethereum enable interoperability with other blockchains?
Options:
A. Through bridges and cross-chain protocols
B. By merging all blockchains into one
C. Via centralized exchanges only
D. By prohibiting external interactions
Answer: A
Explanation: Ethereum supports interoperability through tools like bridges and protocols (e.g., Polkadot or Cosmos integrations), allowing assets and data to move between chains.
20. Question: What is the ultimate goal of Ethereum’s roadmap?
Options:
A. To replace all other blockchains
B. To create a fully scalable, secure, and sustainable decentralized world computer
C. To focus solely on financial services
D. To eliminate Proof of Stake
Answer: B
Explanation: Ethereum’s long-term vision is to evolve into a highly efficient “world computer” that supports decentralized applications, improves scalability, and ensures long-term sustainability.
or
Part 3: Automatically generate quiz questions using OnlineExamMaker AI Question Generator
Automatically generate questions using AI