Download BTA Certified Blockchain Solution Architect.CBSA.PrepAway.2019-04-01.67q.tqb

Vendor: Blockchain
Exam Code: CBSA
Exam Name: BTA Certified Blockchain Solution Architect
Date: Apr 01, 2019
File Size: 459 KB
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Demo Questions

Question 1
What are two challenges with using a Proof of Work algorithm? (Select two.)
  1. Mining pools not allowed
  2. Difficulty rate goes done every year.
  3. Expensive
  4. Power Intensive
Correct answer: CD
Explanation:
Reference: http://www.hl.co.uk/news/2018/2/16/a-brief-history-of-blockchain-technology-everyone-should-read
Reference: http://www.hl.co.uk/news/2018/2/16/a-brief-history-of-blockchain-technology-everyone-should-read
Question 2
Your customer is an enterprise that is focused on financial sectors. What type of blockchain would this customer likely want specified for their enterprise? 
  1. Permissionless
  2. Decentralized
  3. Hybrid
  4. Permissioned
Correct answer: D
Explanation:
Sometimes referred to as “private” blockchains, you are required to have some sort of permission to access any or parts of that blockchain. There are a multitude of variants and hybrid permissioned/permissionless blockchains that exist.  Reference: https://medium.com/@dustindreifuerst/permissioned-vs-permissionless-blockchains-acb8661ee095
Sometimes referred to as “private” blockchains, you are required to have some sort of permission to access any or parts of that blockchain. There are a multitude of variants and hybrid permissioned/permissionless blockchains that exist.  
Reference: https://medium.com/@dustindreifuerst/permissioned-vs-permissionless-blockchains-acb8661ee095
Question 3
Ethereum is considered to be a ______________type of blockchain.
  1. Permissionless
  2. Permission Based
  3. Hybrid
  4. Private
Correct answer: A
Explanation:
Permissionless - anyone can join Anyone can run a node, run mining software/hardware, access a wallet and write data onto and transact within the blockchain (as long as they follow the rules of the bitcoin blockchain). There is no way to censor anyone, ever, on the permissionless bitcoin blockchain.  Reference: https://medium.com/@dustindreifuerst/permissioned-vs-permissionless-blockchains-acb8661ee095
Permissionless - anyone can join Anyone can run a node, run mining software/hardware, access a wallet and write data onto and transact within the blockchain (as long as they follow the rules of the bitcoin blockchain). There is no way to censor anyone, ever, on the permissionless bitcoin blockchain.  
Reference: https://medium.com/@dustindreifuerst/permissioned-vs-permissionless-blockchains-acb8661ee095
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