Blockchain MCQ Questions and Answers for Practice

Blockchain Multiple Choice Questions (MCQs) are a great way to test and enhance your understanding of this innovative technology. Whether you're a student or an exam aspirant, these questions will help you solidify your knowledge and prepare for various assessments.

About Blockchain MCQ Questions

Blockchain MCQs cover a wide range of topics, from the basics of blockchain technology to more advanced concepts like smart contracts, consensus algorithms, and decentralized applications. These questions are designed to challenge your understanding and ensure you grasp the core principles of blockchain.

Why Practice Blockchain Objective Questions?

Practicing Blockchain MCQs offers several benefits. It helps you prepare for school and college exams, enhances your readiness for competitive exams, and boosts your confidence for job interviews. Regular practice also aids in revising key concepts, making you more proficient in blockchain technology.

Who Should Use These MCQs?

Students preparing for school or college exams
Competitive exam aspirants
Candidates preparing for interviews

Blockchain MCQ Questions for Practice

1. A block in the blockchain can never have more than one parent block?

True Statement
False Statement

2. Asymmetric encryption uses:

Public keys only
Private keys only
Public and Private keys
Proof of Stake

3. Bitcoin is based on ............... blockchain?

Private
Public
Public Permissioned
Permissioned

4. Blockchain can be stored as which of the following?

A flat file
A Database
Both of the above
None of the above

5. Blockchain forks can result in which of the following?

Multiple parent blocks
Multiple children blocks

6. Each block of a Blockchain consists of which of the following?

A hash pointer to the previous block
Timestamp
List of transactions
All of the above

7. Hash identifying each block in the Blockchain is generated using which of the following cryptographic algorithm?

SHA128
SHA256

8. In blockchain, blocks are linked

Backward to the previous block
Forward to next block
Not linked with each other

9. The primary benefit of immutability is

Scalability
Improved Security
Tamper ProofIncreased Efficiency

10. What are the different types of tokens?

Platform
Privacy
Currency
All of the above

11. What does P2P stand for?

Password to Password
Peer to Peer
Product to Product
Private Key to Public Key

12. What is a blockchain?

A distributed ledger on a peer to peer network
A type of cryptocurrency
An exchange
A centralized ledger

13. What is a miner?

A type of blockchain
An algorithm that predicts the next part of the chain
A person doing calculations to verify a transaction
Computers that validate and process blockchain transactions

14. What is a node?

A type of cryptocurrency
A blockchain
A computer on a blockchain network
An exchange

15. What is a private key?

A key on your key chain
A key given to the public
A key NOT to be given to the public
A key that opens a secret door