Blockchain (MCQ) Interview Multiple Choice Quiz -McqProf

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Here you can find Blockchain (MCQs) is a type of Distributed Ledger Technology questions & answers Free online practice Bitcoin quiz.


Here are some sample Blockchain multiple choice questions and answers:

What is the key feature of a blockchain?

a. Decentralization

b. Encryption

c. Smart contracts

d. All of the above

Answer: a. Decentralization

What is a distributed ledger?

a. A ledger that is stored on a central server

b. A ledger that is stored on multiple servers

c. A ledger that is stored on a single computer

d. A ledger that is stored on a cloud server

Answer: b. A ledger that is stored on multiple servers


What is the process of adding a new block to a blockchain called?

a. Mining

b. Validating

c. Consensus

d. Hashing

Answer: a. Mining

What is the primary use of smart contracts in the blockchain?

a. To store data

b. To facilitate, verify, and enforce the negotiation or performance of a contract

c. To authenticate users

d. To process transactions

Answer: b. To facilitate, verify, and enforce the negotiation or performance of a contract

What is the primary difference between a private and a public blockchain?

a. Private blockchains are decentralized, while public blockchains are centralized

b. Private blockchains are permissioned, while public blockchains are permissionless

c. Private blockchains are faster, while public blockchains are slower

d. Private blockchains are more secure, while public blockchains are less secure

Answer: b. Private blockchains are permissioned, while public blockchains are permissionless

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