Blockchain CBSA - BTA Certified Blockchain Solution Architect Exam
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Total 229 questions
Question #1 (Topic: Topic 1)
SHA-1 is the most commonly used SHA algorithm, and produces a ______-byte hash value(size).
A. 256
B. 128
C. 32
D. 20
Answer: D
Question #2 (Topic: Topic 1)
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?
controlled thru an attack?
What is the specific attack Bitcoin could be exposed to?
A. 51% Attacks
B. Tether Token Hack
C. DDoS Attack
D. BIP attack
E. Parity Wallet Attack
Answer: A
Question #3 (Topic: Topic 1)
How many satoshis are in 1 bitcoin and how many wei in an Ether? (Select two.)
A. 1,000,000,000,000,000,000
B. 1,000,000,000,000,000
C. 1,000,000,000
D. 10,000
E. 1,000,000,000,000
Answer: AB
Question #4 (Topic: Topic 1)
In the Proof of Stake(POS) algorithm the miners are really known as ___________?
A. Notary
B. Oracle
C. Forgers
D. Minters
Answer: C
Question #5 (Topic: Topic 1)
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.
What is required?
What is required?
A. Consensus
B. Crypthography
C. Bandwidth
D. Availability
Answer: A
