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Bitcoin Blockchain Quiz

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The ______ is the waiting place for transactions before they enter the Bitcoin blockchain.

a)

memory stack

b)

memory pool

c)

temporary memory

d)

database

2.

Which among the following record keeping model is used in Bitcoin Blockchain?

a)

UTXO model

b)

Account/Balance model

c)

ER model

d)

None of the above

3.

Which of the following node type does not come under Bitcoin network?

a)

Full Node

b)

Lightweight Node

c)

Null Node

d)

Miner Node

4.

Bitcoin is commonly abbreviated as ____.

a)

BTC

b)

BCT

c)

ETH

d)

B-Coin

5.

Expand UTXO?

a)

Unauthorized Transaction Output

b)

Unused Transaction Exceptions

c)

Unspent Transaction Output

d)

Unspent Transaction Order

6.

Which of the following is a lottery based consensus?

a)

PBFT

b)

RAFT

c)

Proof of Work

d)

None of the above

7.

BFT is expanded as:

a)

Byzantine Fail Tolerance

b)

Byzantine Fault Tolerance

c)

Blockchain Fault Tolerance

d)

Blockchain Partition Tolerance

8.

________ is a process by which an agreement is reached between different nodes in a network on the final state of data.

a)

Consensus

b)

Immutability

c)

Fault Tolerance

d)

Availability

9.

Which of the following statement is true?

a)

PoET is a voting based consensus.

b)

PBFT is a voting based consensus.

c)

Proof of Stake is a voting based consensus.

d)

Proof of Work is a voting based consensus.

10.

____ is a reputation based consensus algorithm?

a)

Proof of Stake

b)

Proof of Work

c)

Proof of Authority

d)

pBFT