Download BTA Certified Blockchain Solution Architect.CBSA.PracticeTest.2019-04-09.64q.tqb

Vendor: Blockchain
Exam Code: CBSA
Exam Name: BTA Certified Blockchain Solution Architect
Date: Apr 09, 2019
File Size: 600 KB

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Demo Questions

Question 1
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________. 
What is required?
  1. Consensus
  2. Crypthography
  3. Bandwidth
  4. Availability
Correct answer: A
Explanation:
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that require consensus. Reference: https://en.wikipedia.org/wiki/Byzantine_fault_tolerance
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that require consensus. 
Reference: https://en.wikipedia.org/wiki/Byzantine_fault_tolerance
Question 2
A ____________cipher basically means it is using a fixed key which replaces the message with a pseudorandom string of characters. It is basically the encryption of each letter one at a time.  
What is the cipher type?
  1. Stream
  2. Block
  3. Parallel
  4. RSA
Correct answer: A
Explanation:
Stream cipher basically means using a fixed key which replaces the message with a pseudorandom string of characters. It is basically the encryption of each letter one at a time. Reference:https://blockgeeks.com/guides/cryptocurrencies-cryptography/
Stream cipher basically means using a fixed key which replaces the message with a pseudorandom string of characters. It is basically the encryption of each letter one at a time. 
Reference:
https://blockgeeks.com/guides/cryptocurrencies-cryptography/
Question 3
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
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