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Basic Blockchain MCQ

1. Currently, there are four types of blockchain networks. these are ......................

Public blockchains

Private blockchains

Consortium & hybrid blockchains

All of the Above

Answer

Correct Answer: All of the Above

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2. The Some of the largest, most known public blockchains are the ...........................

Bitcoin blockchain

Ethereum blockchain

Hybrid blockchain

Both Bitcoin & Ethereum blockchain

Answer

Correct Answer: Both Bitcoin & Ethereum blockchain

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3. A hybrid blockchain has a combination of .................. features.

Centralized

Decentralized

Both Centralized & Decentralized

None of above

Answer

Correct Answer: Both Centralized & Decentralized

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4. A blockchain has been described as a value-exchange protocol.

Yes

Answer

Correct Answer: Yes

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5. The blockchain is considered a type of .................

Payment rail

Payment method

Payment Organisation

None of above

Answer

Correct Answer: Payment rail

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6. The blockchain was invented by .................... in 2008.

Alon Musk

Bill Gates

Satoshi Nakamoto

None of above

Answer

Correct Answer: Satoshi Nakamoto

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7. Are Decentralized blockchains immutable?

True

False

Answer

Correct Answer: True

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8. Blockchains are store data in the form of?

Lines

Circle

Blocks

None of above

Answer

Correct Answer: Blocks

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9. Blockchain is a type of ................

View

Table

Object

Database

Answer

Correct Answer: Database

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10. What is the term for when a blockchain splits?

A fork

A merger

A division

None of above

Answer

Correct Answer: A fork

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11. Bitcoin was created by ...................

John Mcafee

Satoshi Nakamoto

Alon musk

None of above

Answer

Correct Answer: Satoshi Nakamoto

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12. What is the full form of P2P in blockchain?

Peer to Peer

Public to private

Product to Product

None of above

Answer

Correct Answer: Peer to Peer

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13. What are the disadvantages of Blockchain Technology?

Blockchain is not indestructible.

Scalability remains blockchain's weakness.

Blockchain entries do not last forever or are not immutable.

All of the Above

Answer

Correct Answer: All of the Above

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14. What are the benefits of blockchain technology?

Security & Speed

Fraud control & Access levels

No hidden fees

All of the Above

Answer

Correct Answer: All of the Above

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15. A Blockchain carries no transaction cost.

True

False

Answer

Correct Answer: True

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16. How many pillars of blockchain technology have?

Answer

Correct Answer: 3

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17. What are the pillars of blockchain technology?

Decentralization

Immutability

Transparency

All of the Above

Answer

Correct Answer: All of the Above

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18. Which of the following industry can use blockchain technology for cybersecurity?

Logistics

Healthcare

Critical infrastructure

All of the Above

Answer

Correct Answer: All of the Above

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19. What is a blockchain?

A Currency

A centralized ledger

A type of cryptocurrency

A distributed ledger on a peer to peer network

Answer

Correct Answer: A distributed ledger on a peer to peer network

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20. What are UTXOs in a Bitcoin Blockchain?

These are rewards for miners

These are transaction output that has ben expended

These form the input and output for transactions

These are actual currency that is sent to the receiver of a transaction

Answer

Correct Answer: These are actual currency that is sent to the receiver of a transaction

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