ArtOfBlockChain
ArtOfBlockChain
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    Many people co-own one NFT. This makes pricey NFTs affordable.
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    Explanation:
    Decentraland is a virtual world where users buy land and items as NFTs. It blends gaming and digital ownership.
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    Explanation:
    Royalties ensure creators earn money each time their NFT is resold. This gives artists ongoing income.
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  • Difficulty - Medium
    Total Plays - 32
    Allowed Time - 10 sec
    Best time - 1.466 sec

    Which is a risk of using oracles?

    Tip: Click "Play" to reveal options and start playing.
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    Explanation:
    Centralized oracles can be a single point of failure. If they provide false data, contracts relying on them can be exploited.
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    Explanation:
    In an Eclipse attack, an attacker isolates a node from the network, feeding it false data. This can lead to incorrect transaction processing or vulnerability to double spending.
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    Explanation:
    immutable variables are assigned once during deployment and can’t be changed afterward. They are more gas-efficient than regular storage variables.
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    Explanation:
    Modifiers are used to add conditional logic like access control to functions. They prevent code repetition and keep logic clean.
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    Explanation:
    Ethereum popularized smart contracts and allowed developers to build decentralized apps.
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  • Difficulty - Medium
    Total Plays - 38
    Allowed Time - 10 sec
    Best time - 1.999 sec

    Decentralized exchanges:

    Tip: Click "Play" to reveal options and start playing.
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    Explanation:
    Decentralized exchanges (DEXs) operate using smart contracts, which automatically execute trades without the need for intermediaries. This allows users to trade crypto directly from their wallets while maintaining control of their assets
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