What is the role of miners in the Namecoin network?

a$.$

Developing and maintaining the Namecoin codebase

b$.$

Verifying transactions and adding them to the blockchain

c$.$

Using Namecoin for various purposes

d$.$

Holding Namecoins as a store of value or investment

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What is the role of investors in the Namecoin network?

a$.$

Developing and maintaining the Namecoin codebase

b$.$

Verifying transactions and adding them to the blockchain

c$.$

Using Namecoin for various purposes

d$.$

Holding Namecoins as a store of value or investment

What was the original purpose of Bitcoin?

a$.$

To create a decentralized digital currency

b$.$

To facilitate online gambling

c$.$

To create a secure messaging system

d$.$

To create a new form of social media

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Who is credited with the creation of Bitcoin?

a$.$

Vitalik Buterin

b$.$

Charlie Lee

c$.$

Gavin Andresen

d$.$

Satoshi Nakamoto

What is the primary purpose of KYC$/$AML regulations for cryptocurrency exchanges?

a$.$

To limit the amount of cryptocurrency users can purchase

b$.$

To prevent illegal activities such as money laundering and terrorism financing

c$.$

To increase the cost of using cryptocurrency exchanges

d$.$

None of the above

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Which of the following is a common legal issue faced by cryptocurrency exchanges?

a$.$

Intellectual property disputes

b$.$

Discrimination lawsuits

c$.$

Security breaches

d$.$

None of the abov

Which of the following statements is true regarding the use of blockchain in black markets?

a$.$

Blockchain technology can help to prevent black market activity by making all transactions transparent

b$.$

Blockchain technology cannot be used to track illicit transactions on black markets

c$.$

Blockchain technology can help to facilitate anonymous transactions on black markets

d$.$

Blockchain technology is only useful for legal transactions and cannot be applied to black markets

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Which of the following best describes the role of government in regulating blockchain technology in relation to the global economy?

a$.$

Governments should completely ban the use of blockchain technology

b$.$

Governments should not interfere with the use of blockchain technology in any way

c$.$

Governments should provide clear regulations and guidelines to ensure safe and ethical use of blockchain technology

d$.$

Governments should only regulate blockchain technology for certain industries or use cases

What is the main benefit of using blockchain technology in the Internet of Things $($IoT$)?$

a$.$

Reduced latency

b$.$

Increased data privacy and security

c$.$

Increased scalability

d$.$

Reduced hardware costs

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Which of the following is a consensus algorithm commonly used in blockchain$-$based IoT systems?

a$.$

Proof of Work $($PoW$)$

b$.$

Proof of Stake $($PoS$)$

c$.$

Delegated Proof of Stake $($DPoS$)$

d$.$

Byzantine Fault Tolerance $($BFT$)$

What is the primary benefit of using blockchain in healthcare?

a$.$

Increased data privacy and security

b$.$

Faster access to medical records

c$.$

Reduced costs of healthcare services

d$.$

Improved diagnosis and treatment of diseases

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Which of the following is a key feature of blockchain that makes it useful in healthcare?

a$.$

Centralized control of data

b$.$

High transaction speed

c$.$

Public accessibility of data

d$.$

Distributed ledger technology

What are some benefits of using blockchain technology in DNS$?$

a$.$

Improved security and privacy, increased resistance to DDoS attacks, and decreased risk of DNS spoofing

b$.$

Increased speed of domain name resolution, reduced latency, and improved network performance

c$.$

Lower costs for domain name registration, improved domain name management, and increased transparency

d$.$

None of the above

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How can blockchain technology be used in DNS$?$

a$.$

To create a decentralized and tamper$-$proof DNS system

b$.$

To increase the speed of domain name resolution

c$.$

To encrypt domain name queries and responses

d$.$

To create a centralized and more efficient DNS system

What is a major concern with using blockchain for personal identity security?

a$.$

High energy consumption

b$.$

Limited scalability

c$.$

Lack of regulatory oversight

d$.$

Vulnerability to hacking

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