• Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 1.076

    Public blockchains are:

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    #A
    #B
    #C
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    Explanation:
    Public blockchains are open networks where anyone can join, view transactions, and participate (e.g., transact, mine, or validate blocks) without needing approval.
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  • Difficulty - Medium
    Total Plays - 23
    Allowed Time - 10 sec
    Best time - 0.899

    NFT "minting" means:

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    #A
    #B
    #C
    #D
    Explanation:
    Minting converts digital files (art, music) into blockchain-based NFTs.
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  • Difficulty - Medium
    Total Plays - 22
    Allowed Time - 10 sec
    Best time - 1.863

    Consensus mechanisms ensure:

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    #A
    #B
    #C
    #D
    Explanation:
    Consensus rules (e.g., PoW/PoS) ensure all nodes agree on valid transactions.
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  • Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 0.590

    The first block is called:

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    #A
    #B
    #C
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    Explanation:
    The genesis block is the first block in a blockchain, initiating the chain.
    Leaderboard
  • Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 0.934

    A "block" in blockchain means?

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    #A
    #B
    #C
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    Explanation:
    A block is a group of transactions with a timestamp and cryptographic link to the prior block, forming the blockchain's secure, ordered structure.
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  • Difficulty - Medium
    Total Plays - 80
    Allowed Time - 10 sec
    Best time - 0.597

    A "sidechain" is:

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    #A
    #B
    #C
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    Explanation:
    Sidechains are separate blockchains linked to a main chain (e.g., Polygon for Ethereum) that process transactions independently to enhance scalability and reduce network congestion.
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  • Difficulty - Medium
    Total Plays - 55
    Allowed Time - 10 sec
    Best time - 0.838

    What does "Airdrop" mean?

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    #A
    #B
    #C
    #D
    Explanation:
    Airdrops send free tokens to wallets to promote projects or reward users.
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  • Difficulty - Medium
    Total Plays - 49
    Allowed Time - 10 sec
    Best time - 1.249

    What is Token Burning?

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    #A
    #B
    #C
    #D
    Explanation:
    Token burning permanently removes tokens from circulation to reduce supply, often increasing scarcity and value.
    Leaderboard
  • Difficulty - Medium
    Total Plays - 42
    Allowed Time - 10 sec
    Best time - 0.336

    Layer 2 solutions like Polygon aim to

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    #A
    #B
    #C
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    Explanation:
    Layer 2 networks reduce congestion and fees by processing transactions off-chain.
    Leaderboard
  • Difficulty - Medium
    Total Plays - 42
    Allowed Time - 10 sec
    Best time - 0.813

    Gas fees in Ethereum are paid for:

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    #A
    #B
    #C
    #D
    Explanation:
    Gas fees reward miners/validators for processing transactions and running smart contracts.
    Leaderboard
  • Difficulty - Medium
    Total Plays - 54
    Allowed Time - 10 sec
    Best time - 0.294

    DAO stands for:

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    #A
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    #C
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    Explanation:
    A DAO is a blockchain-based organization run by code and community votes, not central leaders. It uses tokens and smart contracts to make collective decisions.
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  • Difficulty - Medium
    Total Plays - 48
    Allowed Time - 10 sec
    Best time - 0.770

    First blockchain ever created:

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    #A
    #B
    #C
    #D
    Explanation:
    Bitcoin is the first cryptocurrency and blockchain, launched in 2009 by an unknown person or group using the name Satoshi Nakamoto. It allows people to send and receive digital money without needing a bank or middleman.
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  • Difficulty - Medium
    Total Plays - 47
    Allowed Time - 10 sec
    Best time - 1.211

    Blockchain Oracles provide

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    #A
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    Explanation:
    A blockchain oracle is a service that connects a blockchain with real-world data from outside the network. It helps smart contracts get information like weather, prices, or sports scores so they can work properly.
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  • Difficulty - Medium
    Total Plays - 39
    Allowed Time - 10 sec
    Best time - 0.939

    A private key is:

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    #A
    #B
    #C
    #D
    Explanation:
    The private key gives control over crypto assets in wallets.
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  • Difficulty - Medium
    Total Plays - 40
    Allowed Time - 10 sec
    Best time - 0.706

    What does Web3 rely on?

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    #A
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    #C
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    Explanation:
    Web3 uses blockchain to power trustless, decentralized applications.
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  • Difficulty - Medium
    Total Plays - 39
    Allowed Time - 10 sec
    Best time - 1.134

    NFTs (Non-Fungible Tokens) represent

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    #A
    #B
    #C
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    Explanation:
    NFTs tokenize unique items like art or collectibles.
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  • Difficulty - Medium
    Total Plays - 45
    Allowed Time - 10 sec
    Best time - 1.017

    A smart contract is:

    Tip: Click "Play" to reveal options and start playing.

    #A
    #B
    #C
    #D
    Explanation:
    Smart contracts automate actions when conditions are met.
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  • Difficulty - Medium
    Total Plays - 41
    Allowed Time - 10 sec
    Best time - 0.967

    Nodes in blockchain

    Tip: Click "Play" to reveal options and start playing.

    #A
    #B
    #C
    #D
    Explanation:
    Nodes maintain the network by validating/relaying transactions
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