What are the 2 types of records that are present within the blockchain database?

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What are the key elements of the blockchain ecosystem? Explain each of them briefly?

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What do you understand by the security of a block?

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Explain a proof of stake in a simple way?

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What is the difference between wei and ether?

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Give some examples of dapps?

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What type of records blockchain supports?

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What error will I get if I put multiple contract definitions into a single solidity file?

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You mentioned something about indexes. What determines the account index?

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How are merkle trees used in blockchains?

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What is the difference between the distributed database and the traditional database?

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When talking about “verifying” a transaction, what are miners verifying? Do they look at the transaction manually?

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In your opinion, how great is the opportunity for food businesses to make blockchain a central part of their digitalization strategy? What challenges need to be overcome for market-wide adoption?

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What is blockchain technology?

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What are smart contracts in blockchain?

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