Blockchain MCQ Questions

Blockchain MCQ Questions

  • Satyam Jaiswal
  • 31st Jul, 2021

We are introducing here the best Blockchain MCQ Questions, which are very popular & asked various times. This Quiz contains the best 25+ Blockchain MCQ with Answers, which cover the important topics of Blockchain so that, you can perform best in Blockchain exams, interviews, and placement activities.

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Blockchain MCQ with Answers

1) What is a blockchain?

  • A. A blockchain is a centralized digital ledger consisting of records called blocks.
  • B.A blockchain is a decentralized, distributed, digital ledger consisting of records called blocks.
  • C.A blockchain is a digital database consisting of records called class.
  • D.None of the above

2) P2P stand for ___________.

  • A. Private to Public
  • B.Password to Private
  • C.Peer to Peer
  • D.None of the above

3) Bitcoin is created by ________.

  • A. Saifedean Ammous
  • B.Satoshi Nakamoto
  • C.Vitalik Buterin
  • D.None of the above

4) Proof of Stake is __________.

  • A. A transaction and block verification protocol
  • B.A certificate needed to use the blockchain
  • C.Both A and B
  • D.None of the above

5) The term used for a blockchain splits is ________.

  • A. A merger
  • B.A fork
  • C.A division
  • D.None of the above

6) _______ is the part of asymmetric encryption.

  • A. Public key
  • B.Private Key
  • C.Passphrase
  • D.All of the above

7) UTXO stands for _______.

  • A. Unspent Transaction Office
  • B.United Transaction Office
  • C.United Transaction Output
  • D.Unspent Transaction Output

8) _________ characteristic makes blockchain tamper-proof.

  • A. Cryptocurrency
  • B.VPN
  • C.Immutability
  • D.All of the above

9) Blockchain and Bitcoin are both same.

  • A. True
  • B.False

10) It is possible to program a blockchain to record transactions automatically. True/False.

  • A. True
  • B.False

11) The maximum number of bitcoins that can be created is _________.

  • A. 11 million
  • B.25 million
  • C.21 million
  • D.100 million

12) The process of creating new bitcoins is known as __________.

  • A. Financing
  • B.Sourcing
  • C.Mining
  • D.None of the above

13) __________ is used for storing bitcoins.

  • A. Block
  • B.Wallet
  • C.Both A and B
  • D.None of the above

14) The bitcoin central server is located at silicon valley.

  • A. True
  • B.False

15) _______ is the type of ledger present in Blockchain.

  • A. Distributed Ledger
  • B.Decentralized Ledger
  • C.Both A and B
  • D.None of the above

16) Blockchain technology is consists of _______ pillars.

  • A. 9
  • B.7
  • C.5
  • D.3

17) ______ was the famous Bitcoin exchange from Japan.

  • A. Mt. Gox
  • B.Bitstamp
  • C.Both A and B
  • D.None of the above

18) Mt. Gox which was the one of the famous Bitcoin exchange collapsed in which year?

  • A. 2011
  • B.2013
  • C.2014
  • D.2016

19) In blockchain, a block is consist of ______.

  • A. A Timestamp
  • B.Transaction data
  • C.A Hash point
  • D.All of the above

20) Blockchain was invented in which year?

  • A. 2006
  • B.2007
  • C.2008
  • D.2009

21) IPFS stand for _________.

  • A. Interproject File System
  • B.Interplanetary Fax System
  • C.Interplanetary File System
  • D.None of the above

22) The research paper that brought Bitcoin to the world is known as __________

  • A. Black Paper
  • B.Red Paper
  • C.Blue Paper
  • D.White Paper

23) _______ provides the power to the Ethereum Virtual Machine.

  • A. Ether
  • B.Gas
  • C.Both A and B
  • D.None of the above

24) _______ are the real-world applications of blockchain.

  • A. Healthcare
  • B.Banking
  • C.Distributed Cloud Storage
  • D.All of the above

25) Smart contracts are not the legal documents. Yes/No?

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

26) POW stands for. Yes/No?

  • A. Proof of Wisdom
  • B.Proof of Work
  • C.Proof of Word
  • D.None of the above

27) The alternatives to POW are ________.

  • A. Proof of stake
  • B.Delegated Proof Of Stake
  • C.Both A and B
  • D.None of the above

28) The Blockchain network can shut down if the creator is no longer interested in it. Yes/No.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

29) Computers that validate and process blockchain transactions are known as Miners. Yes/No.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

30) The private blockchain is faster, cheaper, and requires less energy to operate than a public blockchain. Yes/No.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

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