Blockchain 101

Blockchain 101

Assessment

Flashcard

Computers

12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a blockchain?

Back

A distributed and immutable ledger.

2.

FLASHCARD QUESTION

Front

What does a block in a blockchain contain?

Back

A list of transactions, a timestamp, and a hash

3.

FLASHCARD QUESTION

Front

What is the role of cryptography in blockchain?

Back

To ensure data privacy and secure transactions

4.

FLASHCARD QUESTION

Front

What is a key feature of blockchain that ensures security?

Back

Tamper-resistant ledger

5.

FLASHCARD QUESTION

Front

What is the consensus mechanism in blockchain?

Back

A process by which participants agree on the state of the ledger

6.

FLASHCARD QUESTION

Front

Which of the following is a popular consensus mechanism in blockchain? Options: Data Validation Protocol (DVP), Proof of Work (PoW), Transaction Evaluation System (TES), Hash Authorization Protocol (HAP)

Back

Proof of Work (PoW)

7.

FLASHCARD QUESTION

Front

What is a "smart contract"?

Back

A self-executing agreement with terms directly written into code

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