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  • Difficulty - Medium
    Total Plays - 31
    Allowed Time - 10 sec
    Best time - 1.603

    Which is NOT a Web3 wallet?

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    Explanation:
    Google Drive is a cloud-based storage service that lets you store, access, and share files online. It offers seamless integration with Google Workspace apps like Docs, Sheets, and Slides.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 1.030

    Gas in Ethereum is measured in:

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    Explanation:
    Gwei is a smaller unit of ETH used to calculate gas costs.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 1.897

    "Liquidity pools" in DeFi are used to:

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    Explanation:
    Pools lock tokens for trading on platforms like Uniswap, replacing traditional order books.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 1.643

    Gas limits prevent:

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    Explanation:
    Gas limits set a maximum amount of computation a transaction can use, preventing infinite loops or excessively long operations from running indefinitely. This protects the network and user funds by halting transactions that exceed the limit.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 1.238

    Combines PoW and PoS?

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    Explanation:
    Hybrid mechanisms (e.g., Decred) blend PoW mining with PoS voting for balanced security.
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  • Difficulty - Medium
    Total Plays - 20
    Allowed Time - 10 sec
    Best time - 2.104

    Sybil attacks target:

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    Explanation:
    Sybil attacks create fake nodes to disrupt consensus or censor transactions.
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  • Difficulty - Medium
    Total Plays - 19
    Allowed Time - 10 sec
    Best time - 0.954

    Oracle "data freshness" ensures:

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    Explanation:
    Fresh data prevents outdated inputs (e.g., stale prices) from breaking contracts.
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  • Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 1.325

    DeFi relies on oracles for:

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    Explanation:
    DeFi protocols need real-world price data (e.g., ETH/USD) to execute core functions like determining loan collateral ratios, triggering liquidations, or enabling decentralized trades — all of which require oracles to securely fetch and verify external market prices.
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  • Difficulty - Medium
    Total Plays - 23
    Allowed Time - 10 sec
    Best time - 1.725

    "Decentralized oracles" use:

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    Explanation:
    Decentralized oracles (e.g., Chainlink) source data from many nodes for trust.
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  • Difficulty - Medium
    Total Plays - 25
    Allowed Time - 10 sec
    Best time - 1.584

    ERC-20 tokens are

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    Explanation:
    ERC-20 is a standard for creating interchangeable tokens like cryptocurrencies or rewards.
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  • Difficulty - Medium
    Total Plays - 20
    Allowed Time - 10 sec
    Best time - 0.789

    Faster transactions than PoW?

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    Explanation:
    PoS processes transactions faster by skipping energy-intensive mining. Chains like Ethereum 2.0 use it.
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  • Difficulty - Medium
    Total Plays - 28
    Allowed Time - 10 sec
    Best time - 1.139

    Tokenomics" refers to

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    Explanation:
    Tokenomics refers to the economic design and structure of a cryptocurrency or token, including how it is created, distributed, and managed. It encompasses factors like total supply, allocation, inflation, utility, and incentives that influence the token's value and usage within a blockchain ecosystem.
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  • Difficulty - Medium
    Total Plays - 30
    Allowed Time - 10 sec
    Best time - 1.157

    MetaMask" is a

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    Explanation:
    MetaMask is a popular cryptocurrency wallet and browser extension that allows users to manage Ethereum-based assets and interact with decentralized applications (dApps). It securely stores private keys, enabling seamless transactions and access to Web3 platforms directly from the browser.
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  • Difficulty - Medium
    Total Plays - 25
    Allowed Time - 10 sec
    Best time - 1.007

    Solidity is used to write:

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    Explanation:
    Solidity is Ethereum’s primary language for coding smart contracts.
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  • Difficulty - Medium
    Total Plays - 16
    Allowed Time - 10 sec
    Best time - 1.303

    PFP NFTs" represent:

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    Explanation:
    PFP (Profile Picture) NFTs like Bored Apes are used as social media avatars.
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  • Difficulty - Medium
    Total Plays - 22
    Allowed Time - 10 sec
    Best time - 1.118

    What is Hash?

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    Explanation:
    A hash function is a algorithm that converts data into a fixed-size string (hash value), used for data integrity, security, or quick lookup.
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  • Difficulty - Medium
    Total Plays - 27
    Allowed Time - 10 sec
    Best time - 1.076

    Public blockchains are:

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    Explanation:
    Public blockchains are open networks where anyone can join, view transactions, and participate (e.g., transact, mine, or validate blocks) without needing approval.
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