Download Certified Blockchain Business Foundations.CBBF.BrainDumps.2019-07-31.34q.vcex

Vendor: Blockchain
Exam Code: CBBF
Exam Name: Certified Blockchain Business Foundations
Date: Jul 31, 2019
File Size: 17 KB

How to open VCEX files?

Files with VCEX extension can be opened by ProfExam Simulator.

Demo Questions

Question 1
How does a private Blockchain differ from a public one? Select all that apply.
  1. A private Blockchain does not use proof of work consensus
  2. A private Blockchain is more efficient and has faster transaction times
  3. A private Blockchain is not distributed
  4. A private Blockchain often requires the identity of users to be known
Correct answer: D
Explanation:
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Question 2
A distributed network is always decentralized. 
  1. True
  2. False
Correct answer: B
Explanation:
Reference: https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized-network
Reference: https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized-network
Question 3
Which of the following are practical use cases for Blockchain? 
  1. Voting
  2. A video sharing website
  3. Medical records
  4. Identity management
  5. All of the above
Correct answer: E
Explanation:
Reference: https://www.mycryptopedia.com/16-promising-blockchain-use-cases/
Reference: https://www.mycryptopedia.com/16-promising-blockchain-use-cases/
Question 4
Which item(s) make up a block header?
  1. The hash of the Merkle root and the header of the previous block
  2. The hash of every transaction in a specific block and the next block
  3. The time stamp of the block and the genesis block hash
  4. The hash of the previous block
Correct answer: D
Explanation:
Reference: https://www.cryptocompare.com/coins/guides/what-is-a-block-header-in-bitcoin/
Reference: https://www.cryptocompare.com/coins/guides/what-is-a-block-header-in-bitcoin/
Question 5
How is Blockchain benefiting voting?
  1. By revealing the identity of each voter and who or what they voted for
  2. By controlling who gets to vote
  3. By only allowing a certain number of votes per person
  4. By allowing voters to trust their vote has been counted
Correct answer: D
Question 6
Which of the following statements sums up the Proof of Work consensus process?
  1. Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.
  2. Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.
  3. All nodes agree on the data of the transaction.
  4. Miners send assets to an inactive address. This process selects the next owner of a block.
Correct answer: C
Explanation:
Reference: https://www.nichanank.com/blog/2018/5/23/consensus-algorithms-pow
Reference: https://www.nichanank.com/blog/2018/5/23/consensus-algorithms-pow
Question 7
The Ethereum Blockchain provides a/an _____________ virtual machine.
  1. Windows compatible
  2. energy efficient
  3. Linux compatible
  4. turing-complete
Correct answer: D
Explanation:
Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/
Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/
Question 8
Which Blockchain protocol uses Proof of Work Consensus? Select all that apply 
  1. Hyperledger
  2. Corda
  3. Bitcoin
  4. Ethereum
  5. All of the above
Correct answer: ACD
Question 9
Blockchain applications can provide____________________.
  1. the elimination of intermediaries
  2. building more trust between trusted parties
  3. collaboration between trusted parties
  4. better cooperation between banks
Correct answer: A
Question 10
A Blockchain does NOT provide which attribute?
  1. Security through distribution
  2. Anonymity through cryptography
  3. Fault Tolerance through distribution
  4. Immutability through hashing
Correct answer: B
HOW TO OPEN VCE FILES

Use VCE Exam Simulator to open VCE files
Avanaset

HOW TO OPEN VCEX AND EXAM FILES

Use ProfExam Simulator to open VCEX and EXAM files
ProfExam Screen

ProfExam
ProfExam at a 20% markdown

You have the opportunity to purchase ProfExam at a 20% reduced price

Get Now!