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  • Shubhada Pande

    Shubhada Pande

    @ShubhadaJP3mos

    ArtofBlockchain’s Job Board

    Curated Web3 & blockchain jobs (tech + non-tech) with verified direct-apply links from real company career pages — no scraped roles, no fake redirects, no noise.Hey everyone 👋AOB’s Blockchain Job...
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  • Difficulty - Medium
    Total Plays - 23
    Allowed Time - 10 sec
    Best time - 1.968 sec

    What is a rollup?

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    Explanation:
    Rollups are Layer 2 blockchain scaling solutions that bundle multiple transactions off-chain and then post cryptographic proofs to the main chain. This reduces gas fees and increases transaction speed while maintaining the security and decentralization of the base blockchain. Rollups are key to Ethereum scalability and the future of high-performance Web3 applications.
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    Explanation:
    MEV (Maximum Extractable Value) refers to profits gained by reordering or inserting transactions in a block. It’s a major focus in blockchain security and DeFi optimization, influencing how validators and searchers interact with the mempool.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 0.936 sec

    What is sharding in blockchains?

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    Explanation:
    Sharding is a blockchain scalability technique that divides the entire network’s data into smaller, manageable pieces called shards. Each shard processes its own transactions and smart contracts, improving network speed, performance, and efficiency. This concept is key for scalable blockchain infrastructure like Ethereum 2.0 and future Web3 ecosystems.
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    Explanation:
    A Blockchain QA Analyst is responsible for testing smart contracts, dApps, and blockchain networks to ensure they work as intended. They identify bugs, check performance, and validate security, which is critical for building trust in decentralized applications. This role is increasingly important in blockchain careers, as companies rely on QA analysts to deliver reliable and secure Web3 products.
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    Explanation:
    Bitcoin uses the SHA-256 cryptographic hash function to secure transactions and link blocks in the blockchain. This algorithm produces a fixed 256-bit output, ensuring immutability and resistance to tampering. By using SHA-256, Bitcoin maintains trust, decentralization, and data integrity across the network
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