Question 1

Which of the following is a primary benefit of using blockchain technology in data science?

Accepted Answer

Improved data integrity

Answer

Reduced data access

Answer

Faster data processing

Answer

Higher data redundancy

Question 2

What role does consensus mechanism play in blockchain technology?

Accepted Answer

It ensures all participants agree on the validity of transactions

Answer

It stores data in a centralized manner

Answer

It increases transaction speed

Answer

It eliminates data redundancy

Question 3

In the context of blockchain, what is a smart contract?

Accepted Answer

A self-executing contract with the terms directly written into code

Answer

A database for storing documents

Answer

A type of financial asset

Answer

A traditional legal agreement

Question 4

Which of the following characteristics distinguishes blockchain from traditional databases?

Accepted Answer

Decentralization

Answer

Centralized control

Answer

Limited access

Answer

High processing speed

Question 5

How does data immutability in blockchain benefit data science applications?

Accepted Answer

It prevents unauthorized changes to data

Answer

It simplifies data access protocols

Answer

It allows unlimited data storage

Answer

It improves data processing speed

Question 6

Which of the following best describes the term 'tokenization' in the context of blockchain?

Accepted Answer

The process of converting real-world assets into digital tokens

Answer

The speed at which transactions are processed

Answer

The creation of cryptocurrencies only

Answer

The method of enhancing blockchain security

Question 7

What is the purpose of hashing in blockchain technology?

Accepted Answer

To ensure data integrity and security

Answer

To enable centralized control

Answer

To increase transaction processing speed

Answer

To store data in a readable format

Question 8

What is a primary use case of blockchain technology in data science?

Accepted Answer

Ensuring data provenance and authenticity

Answer

Performing complex statistical analysis

Answer

Speeding up data retrieval processes

Answer

Creating large datasets quickly

Question 9

What does the term 'fork' refer to in blockchain technology?

Accepted Answer

A divergence in the blockchain protocol that can create a new version of the blockchain

Answer

A type of smart contract

Answer

A method of securing a blockchain

Answer

An increase in transaction fees

Question 10

Which consensus algorithm is commonly used in Bitcoin's blockchain?

Accepted Answer

Proof of Work

Answer

Byzantine Fault Tolerance

Answer

Delegated Proof of Stake

Answer

Proof of Stake

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