Blockchain MCQ Quiz - Multiple Choice Questions & Answers

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

1. True Statement
2. False Statement

2. Asymmetric encryption uses:

1. Public keys only
2. Private keys only
3. Public and Private keys
4. Proof of Stake

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

1. Private
2. Public
3. Public Permissioned
4. Permissioned

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

1. A flat file
2. A Database
3. Both of the above
4. None of the above

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

1. Multiple parent blocks
2. Multiple children blocks

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

1. A hash pointer to the previous block
2. Timestamp
3. List of transactions
4. All of the above

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

1. SHA128
2. SHA256

8. In blockchain, blocks are linked

1. Backward to the previous block
2. Forward to next block
3. Not linked with each other

9. The primary benefit of immutability is

1. Scalability
2. Improved Security
3. Tamper ProofIncreased Efficiency

10. What are the different types of tokens?

1. Platform
2. Privacy
3. Currency
4. All of the above