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  3. CBSA

Blockchain CBSA Exam (page: 4)
Blockchain BTA Certified Solution Architect
Updated on: 25-Dec-2025

Viewing Page 4 of 47
CBSA PDF 229 Questions

In the Ethereum EVM there are two types of memory areas. (Select two.)

  1. Storage
  2. Database
  3. Memory
  4. Persistent
  5. Ephemeral

Answer(s): A,C


Reference:

https://solidity.readthedocs.io/en/latest/introduction-to-smart-contracts.html#the-ethereum-virtual-machine



What are some advantages of Proof of Stake(POS) mining over Proof of Work(POW) mining? (Select three.)

  1. Energy efficient in regards to that it could consume for electricity as compared to PoW
  2. Faster Hashing algorithms
  3. No need for expensive compared to POW
  4. Faster validations compared to POW
  5. Better blockchain security compared to POW

Answer(s): A,C,D

Explanation:

This eliminates the below challenges from PoW and believed to have an advantage.
No need of expensive hardware (a normal laptop or computer running the respective coin’s Validator client will do as long as your laptop or computer is online)
Energy efficient as it won’t consume high electricity as PoW does More loyal Validators As higher the stake the Validators have for a long time, more chances for the Validator to be picked up for “forging” and earn the transaction fee Faster validations


Reference:

https://medium.com/@karthik.seshu/cryptocurrency-proof-of-work-vs-proof-of-stake-e1eee1420b10



Application Specific Integrated Circuit (ASIC) are used always in enterprise blockchains.

  1. TRUE
  2. FALSE

Answer(s): B

Explanation:

ASICS are generally used in blockchains such as BTC that have a Proof of Work consensus due to competition


Reference:

https://www.trymining.com/pages/asic-vs-gpu



What type of encryption is shown below and is commonly used in blockchain cryptography?

  1. Diffie-Hellman
  2. Asymmetric Encryption
  3. Synchronous
  4. Asynchronous
  5. Symmetric Encryption

Answer(s): B

Explanation:

Asymmetric cryptography utilizes two different keys, a public key and a private to encrypt and decrypt a particular data. The use of one key cancels out the use of the other.


Reference:

https://blockgeeks.com/guides/cryptocurrencies-cryptography/



An encryption algorithm transforms plain text into cipher text using a key?

  1. TRUE
  2. FALSE

Answer(s): A



Viewing Page 4 of 47



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