Download Blockchain.CBSA.TestKing.2019-04-03.65q.tqb

Vendor: Blockchain
Exam Code: CBSA
Exam Name: BTA Certified Blockchain Solution Architect
Date: Apr 03, 2019
File Size: 604 KB

Demo Questions

Question 1
In the Proof of Stake(POS) algorithm the miners are really known as ___________?
  1. Notary
  2. Oracle
  3. Forgers
  4. Minters
Correct answer: C
Explanation:
Proof of Stake has the same goal as proof of work—to validate transactions and achieve consensus in the chain—and it uses an algorithm but with a different process. With proof of stake, the creator of a new block “is chosen in a deterministic way, depending on its wealth, also defined as a stake.” Since in a proof of stake system, there is no block reward, but the miners, known as forgers, get the transaction fees. Proponents of this shift, including Ethereum co-founder Buterin, like proof of stake for the energy and cost savings realized to get to a distributed form of consensus.  Reference: http://www.hl.co.uk/news/2018/2/16/a-brief-history-of-blockchain-technology-everyone-should-read
Proof of Stake has the same goal as proof of work—to validate transactions and achieve consensus in the chain—and it uses an algorithm but with a different process. With proof of stake, the creator of a new block “is chosen in a deterministic way, depending on its wealth, also defined as a stake.” Since in a proof of stake system, there is no block reward, but the miners, known as forgers, get the transaction fees. Proponents of this shift, including Ethereum co-founder Buterin, like proof of stake for the energy and cost savings realized to get to a distributed form of consensus.  
Reference: http://www.hl.co.uk/news/2018/2/16/a-brief-history-of-blockchain-technology-everyone-should-read
Question 2
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 3
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/
EXAM SIMULATOR

How to Open TQB Files?

Use Taurus Exam Simulator to open TQB files

Taurus Exam Simulator


Taurus Exam Simulator for Windows/macOS/Linus

Download

Taurus Exam Studio
Enjoy a 20% discount on Taurus Exam Studio!

You now have the chance to acquire Exam Studio at a discounted rate of 20%.

Get Now!