FREE CBE Blockchain Technology Fundamentals Questions and Answers

Question 1

What is the primary function of a blockchain?

Accepted Answer

Distributed ledger

Answer

Data compression

Answer

Cloud storage

Answer

Cryptographic wallet

Question 2

Which component of a blockchain contains the hash of the previous block?

Accepted Answer

Header

Answer

Genesis block

Answer

Nonce

Answer

Footer

Question 3

What is a node in the context of blockchain?

Accepted Answer

Network participant

Answer

Mining equipment

Answer

Data block

Answer

Smart contract

Question 4

What ensures the immutability of blockchain data?

Accepted Answer

Hash functions and consensus

Answer

Private keys

Answer

Data redundancy

Answer

Encryption algorithms

Question 5

Which of the following best defines a public blockchain?

Accepted Answer

Permissionless and open

Answer

Owned by a central authority

Answer

Requires special hardware to access

Answer

Access limited to institutions

Question 6

What is the role of consensus in blockchain networks?

Accepted Answer

To reach agreement among nodes

Answer

To encrypt transactions

Answer

To backup the chain

Answer

To build smart contracts