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Qn. Sets

Blockchain Questions Set 14:

Quiz Mode

What is another smart contract model besides Ethereum's?

Chaincode of Hyperledger

Legal contracts

Bitgold of Szabo

Intelligent contract of Bitcoin

What are considered Altcoins?

All cryptocurrencies other than Bitcoin and Ethereum

All cryptocurrencies other than Bitcoin

None of the above

All cryptocurrencies other than Ethereum

What are atomic swaps?

Exchanging one blockchain with another

Exchanging one cryptocurrency with another without an exchange

Exchanging one smart contract with another

None of the above

What is the Basic Attention Token (BAT)?

None of the above

A decentralized ad exchange platform based on Bitcoin

A decentralized ad exchange platform based on Ripple

A decentralized ad exchange platform based on Ethereum

How do Bitcoin miners get paid?

By bitcoins specified by the Block Reward

By bitcoins specified by the transaction makers

By 1% of the bitcoins used in the block

By bitcoins specified by a combination of Block Reward and Transaction Fees

Which of the following is not a requirement for Hash algorithms?

A hash algorithm has to be deterministic

A hash algorithm has to be one-way only

A hash algorithm has to have the Avalanche Effect

A hash algorithm has to welcome collisions

Who are miners in a blockchain?

A person who just initiates a transaction in the blockchain

A person who receives money as the receiver of the transaction

A person who validates new transactions and records them on the blockchain

An algorithm that you can use to calculate the next block in a blockchain

Which of these statements accurately describes a blockchain?

A blockchain is a centralized, immutable ledger.

A blockchain is a fixed-size storage database secured with cryptography.

A blockchain is a decentralized, immutable ledger that is growing continuously.

A blockchain is an algorithm to verify the SHA-256 cryptographic algorithm.

Which of the following options correctly describes the purpose of the Assert statement in the winningProposal method of BallotWithModifier.sol?

None of the above.

The Assert statement ensures the function does not return a value if nobody voted.

The Assert statement ensures the function returns a value even if nobody voted.

Both Option 1 and Option 2 are correct.

Which of the following is not a property of a Cryptocurrency?

The system keeps an overview of cryptocurrency units and their ownership.

Ownership of cryptocurrency units can be proved exclusively cryptographically.

If two different instructions for changing the ownership of the same cryptographic units are simultaneously entered, the system performs both of them.

The system does not require a central authority, its state is maintained through distributed consensus.

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Qn. Sets

Blockchain Questions Set 14:

What is another smart contract model besides Ethereum's?

Reveal Answer

What are considered Altcoins?

Reveal Answer

What are atomic swaps?

Reveal Answer

What is the Basic Attention Token (BAT)?

Reveal Answer

How do Bitcoin miners get paid?

Reveal Answer

Which of the following is not a requirement for Hash algorithms?

Reveal Answer

Who are miners in a blockchain?

Reveal Answer

Which of these statements accurately describes a blockchain?

Reveal Answer

Which of the following options correctly describes the purpose of the Assert statement in the winningProposal method of BallotWithModifier.sol?

Reveal Answer

Which of the following is not a property of a Cryptocurrency?

Reveal Answer

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