Bitcoin Quiz Questions with Answers | Blockchain Foundation Program | Week 2 | KBA

Q1) The ______ is the waiting place for transactions before they enter the Bitcoin blockchain.

a) memory stack

b) memory pool

c) temporary memory

d) database

Q2) Transactions are signed by:

a) The sender private key

b) The sender public key

c) The receiver private key

d) The receiver public key

Q3) Which node type doesn't match with Bitcoin network?

a) Full Node

b) Lightweight Node

c) Null Node

d) Miner Node

Q4) Which node maintains the latest complete blockchain of the network?

a) Lightweight node

b) Miner node

c) Full node

d) Router node

Q5) Which of the following is a lottery based consensus?

a) PBFT

b) RAFT

c) Proof of Work

d) None of the above

Q6) BFT is expanded as:

a) Byzantine Fail Tolerance

b) Byzantine Fault Tolerance

c) Blockchain Fault Tolerance

d) Blockchain Partition Tolerance

Q7) ________ 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

Q8) The average block creation time of the Bitcoin blockchain is ________.

a) 15 minutes

b) 12 seconds

c) 10 minutes

d) None of the above

Q9) Nonce in Proof of Work is ________

a) The number that blockchain miners are solving for.

b) Puzzle.

c) Number of transactions in a specific account.

d) Hash of previous block.

Q10) Proof of Stake needs more computational capabilities than Proof of work?

a) True

b) False