CBSA

Review 229 CBSA practice questions with answer explanations and community insights.

Question 1

SHA-1 is the most commonly used SHA algorithm, and produces a ______-byte hash value(size).

  1. 256
  2. 128
  3. 32
  4. 20

Question 2

What type of attack would be considered a very large flaw in public blockchains such as Bitcoin's Blockchain where the majority of hashpower could possibly be controlled thru an attack? What is the specific attack Bitcoin could be exposed to?

  1. 51% Attacks
  2. Tether Token Hack
  3. DDoS Attack
  4. BIP attack
  5. Parity Wallet Attack

Question 3

How many satoshis are in 1 bitcoin and how many wei in an Ether? (Select two.)

  1. 1,000,000,000,000,000,000
  2. 1,000,000,000,000,000
  3. 1,000,000,000
  4. 10,000
  5. 1,000,000,000,000

Question 4

In the Proof of Stake(POS) algorithm the miners are really known as ___________?

  1. Notary
  2. Oracle
  3. Forgers
  4. Minters

Question 5

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
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