Blockchain MCQ Questions

Blockchain MCQ Questions | Freshers & Experienced

  • Satyam Jaiswal
  • 19th May, 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.

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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