ArtOfBlockChain
ArtOfBlockChain
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    Explanation:
    Rust’s zero-cost abstractions allow developers to write high-level code without runtime performance penalties, ideal for blockchain runtimes. This ensures efficient execution of smart contracts and consensus algorithms.
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    Explanation:
    The #[account] macro in Anchor is used to define and validate account structures for Solana smart contracts. It simplifies account management and ensures data integrity.
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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:
    Anchor is a Rust-based framework designed for developing secure and efficient smart contracts on Solana. It simplifies the process with macros and abstractions for Solana’s programming model.
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    Explanation:
    Whitelists let selected users mint first. It rewards loyal fans and avoids gas spikes.
  • Difficulty - Medium
    Total Plays - 35
    Allowed Time - 10 sec
    Best time - 1.663 sec

    How do fashion brands use NFTs?

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    Explanation:
    They link physical goods to NFTs. This proves ownership and authenticity.
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    Explanation:
    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 - 39
    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:
    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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