How can blockchain be used to incentivise energy conservation and efficiency?

a$.$

Through the creation of virtual power plants

b$.$

Through the use of renewable energy sources

c$.$

Through the creation of energy tokens and smart contracts

d$.$

Through the use of fossil fuels for energy production

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What is one benefit of using blockchain in energy systems?

a$.$

It can increase the risk of fraud and cyberattacks

b$.$

It can reduce the efficiency of energy pricing and market access

c$.$

It can enable the creation of virtual power plants

d$.$

It can lead to greater dependence on fossil fuels

What is cryptocurrency?

a$.$

A digital currency that uses cryptography for security

b$.$

A currency controlled by a central authority

c$.$

A currency that is accepted worldwide

d$.$

A currency that is based on gold

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What is a blockchain?

a$.$

A decentralized database that stores all cryptocurrency transactions.

b$.$

A centralized database that stores all cryptocurrency transactions.

c$.$

A type of encryption used in cryptocurrency.

d$.$

A type of cryptocurrency.

What is a distributed ledger?

a$.$

A centralized database controlled by a single authority

b$.$

A decentralized database controlled by multiple participants in a network.

c$.$

A ledger that is distributed physically to multiple locations.

d$.$

A ledger that is distributed digitally to multiple locations.

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What is the advantage of using a distributed ledger for voting and governance?

a$.$

Decreased transparency

b$.$

Decreased accessibility

c$.$

Increased security

d$.$

Increased intermediaries

Which of the following is NOT a common consensus mechanism used in blockchain?

a$.$

Proof of Work $($PoW$)$

b$.$

Proof of Stake $($PoS$)$

c$.$

Delegated Proof of Authority $($DPOA$)$

d$.$

Proof of Authentication $($PoA$)$

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What is the purpose of a smart contract in blockchain technology?

a$.$

To automate transactions and agreements

b$.$

To provide secure access to a blockchain network

c$.$

To verify digital signatures

d$.$

To provide a digital identity

What is Ethereum?

a$.$

A centralized blockchain platform

b$.$

A decentralized blockchain platform

c$.$

A mobile app development platform

d$.$

A cloud computing platform

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What consensus algorithm is Ethereum currently using?:

a$.$

Proof$-$of$-$work $($PoW$)$

b$.$

Proof$-$of$-$stake $($PoS$)$

c$.$

Delegated proof$-$of$-$stake $($DPoS$)$

d$.$

Byzantine fault tolerance $($BFT$)$

What is a DAO?

a$.$

A type of organization that operates through a centralized network.

b$.$

A type of organization that operates through a blockchain network

c$.$

A type of organization that operates through a social media platform

d$.$

A type of organization that operates through a traditional hierarchical structure

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Which of the following is a characteristic of DAOs?

a$.$

Centralized decision$-$making

b$.$

Human intervention in decision$-$making

c$.$

Transparency in decision$-$making

d$.$

Bureaucratic management structure

How do smart contracts work?

a$.$

They are stored on a central server

b$.$

They use a decentralized network to enforce the rules of the contract

c$.$

They are manually executed by a third party

d$.$

None of the above

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What is a potential benefit of smart contracts:

a$.$

They can increase the need for intermediaries, such as lawyers and brokers

b$.$

They can automate the contract execution process, reducing the time it takes to negotiate and execute a contract

c$.$

They can introduce more human error into the process

d$.$

None of the above

How does GHOST compare to Proof of Stake $($PoS$)?$

a$.$

GHOST is a type of PoS

b$.$

PoS is more energy$-$efficient

c$.$

GHOST is more secure

d$.$

They are two different consensus algorithms with different characteristics

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What is GHOST?

a$.$

A blockchain consensus algorithm

b$.$

A type of cryptocurrency

c$.$

A decentralized autonomous organization

d$.$

A blockchain$-$based supply chain management system

How are sidechains created?

a$.$

Through mining new blocks

b$.$

Through two$-$way pegging

c$.$

Through the use of smart contracts

d$.$

Through the creation of new nodes on the main blockchain

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What role do sidechains play in the development of blockchain technology?

a$.$

They are a tool for improving scalability and functionality

b$.$

They are a replacement