ArtOfBlockChain
ArtOfBlockChain
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  • Difficulty - Medium
    Total Plays - 43
    Allowed Time - 10 sec
    Best time - 1.527 sec

    What is a token standard?

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    Explanation:
    A token standard, like ERC-20, defines rules for creating tokens on a blockchain. It ensures compatibility for cross-chain transfers and DeFi applications.
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  • Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 1.448 sec

    Gas in Ethereum is measured in:

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    Explanation:
    Gwei is a smaller unit of ETH used to calculate gas costs.
  • Difficulty - Medium
    Total Plays - 34
    Allowed Time - 10 sec
    Best time - 1.466 sec

    Which is a risk of using oracles?

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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:
    Royalties ensure creators earn money each time their NFT is resold. This gives artists ongoing income.
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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:
    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:
    Many people co-own one NFT. This makes pricey NFTs affordable.
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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:
    Rust’s ownership model enforces strict rules on data access, preventing issues like double-spending in blockchain applications. It ensures compile-time safety for complex data structures.
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    Explanation:
    Ethereum popularized smart contracts and allowed developers to build decentralized apps.
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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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