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  • Difficulty - Medium
    Total Plays - 32
    Allowed Time - 10 sec
    Best time - 0.964

    Which Rust framework is used for Solana smart contract development?

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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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  • Difficulty - Medium
    Total Plays - 34
    Allowed Time - 10 sec
    Best time - 1.486

    Why do some NFTs include royalties?

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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 - 55
    Allowed Time - 10 sec
    Best time - 0.838

    What does "Airdrop" mean?

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    Explanation:
    Airdrops send free tokens to wallets to promote projects or reward users.
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  • Difficulty - Medium
    Total Plays - 54
    Allowed Time - 10 sec
    Best time - 0.294

    DAO stands for:

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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 - 39
    Allowed Time - 10 sec
    Best time - 1.134

    NFTs (Non-Fungible Tokens) represent

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    Explanation:
    NFTs tokenize unique items like art or collectibles.
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  • Difficulty - Medium
    Total Plays - 52
    Allowed Time - 10 sec
    Best time - 1.790

    What is front-running in DeFi?

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    Explanation:
    Traders exploit transaction ordering for profit.
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  • Learn Zero-Knowledge Proofs in 30 Days: Roadmap, Projects, and Interview Prep for Blockchain Developers

    Zero-knowledge proofs are no longer a niche concept that only cryptography researchers care about. In blockchain, they now show up in rollups, privacy-preserving systems, identity verification, and proof-based infrastructure. That is why more developers are asking a practical question: should I learn ZK, and where...
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  • Difficulty - Medium
    Total Plays - 35
    Allowed Time - 10 sec
    Best time - 1.663

    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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  • Difficulty - Medium
    Total Plays - 31
    Allowed Time - 10 sec
    Best time - 1.117

    What’s NFT “fractionalization”?

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    Explanation:
    Many people co-own one NFT. This makes pricey NFTs affordable.
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  • Difficulty - Medium
    Total Plays - 30
    Allowed Time - 10 sec
    Best time - 0.977

    What is the primary purpose of a modifier in Solidity?

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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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  • Difficulty - Medium
    Total Plays - 80
    Allowed Time - 10 sec
    Best time - 0.597

    A "sidechain" is:

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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 - 49
    Allowed Time - 10 sec
    Best time - 1.249

    What is Token Burning?

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

    Layer 2 solutions like Polygon aim to

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

    Gas fees in Ethereum are paid for:

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    Explanation:
    Gas fees reward miners/validators for processing transactions and running smart contracts.
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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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    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 - 41
    Allowed Time - 10 sec
    Best time - 0.967

    Nodes in blockchain

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    Explanation:
    Nodes maintain the network by validating/relaying transactions
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