Free Blockchain CBDE Exam Dumps

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Question No: 1

MultipleChoice

Events:

Options

Aare stored on chain and are a great way to get a return value when a contract calls another contract.

Bare stored in something like a side-chain and cannot be accessed by contracts.

Care used primarily for debugging exceptions in solidity.

Question No: 2

MultipleChoice

When a new block is mined:

Options

Aa list of transactions as well as uncles is incorporated in the block. All gas that is used during those transactions is added to the miners' balance. Also, the block reward is added to the miner. Then the same transactions are run again by every participating node in the network to achieve consensus.

Ba list of transactions is incorporated in that block. Gas used during the execution is attached to the executing contracts while the block reward is automatically spread across the mining pool to ensure a fair spread. Consensus is reached by a special form of hash code.

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