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CBSA Exam Dumps - Blockchain Solution Architect Questions and Answers

Question # 4

What are two challenges with using a Proof of Work algorithm? (Select two.)

Options:

A.

Mining pools not allowed

B.

Difficulty rate goes done every year.

C.

Expensive

D.

Power Intensive

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Question # 5

The first actual known blockchain software implementation and deployment occurred:

Options:

A.

In 1991 by Stuart Haber

B.

In 2011 Markus Persson

C.

In 2009 by Satoshi Nakamoto

D.

In 1991 by Linus Torvalds

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Question # 6

Bitcoin uses what proof of work consensus system?

Options:

A.

Cubehash512

B.

Scrypt-Jane

C.

Whirlpool

D.

Scrypt-n

E.

Hashcash

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Question # 7

You are currently considering blockchain solutions for your organization. You read an article about "blockless" blockchains.

What are the two benefits that could be gained over a traditional blockchain solution? (Select two.)

Options:

A.

Faster Block writes

B.

Greater Transaction Security

C.

Faster Performance

D.

Greater transaction Capacity

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Question # 8

In common blockchain design, identity and transaction approval is possible through:

Options:

A.

AES encryption

B.

Public key cryptography

C.

Secret key cryptography

D.

None of the above

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Question # 9

Byzantine Fault Tolerance can be achieved only through a Proof of Work.

Options:

A.

FALSE

B.

TRUE

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Question # 10

Fabric Ledger has two specific parts. Select answer with the proper two parts.

Options:

A.

State Data, Transactional Data

B.

State Data, Transaction logs

C.

LevelIDb, CouchDB

D.

Transaction Logs, CouchDB

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Question # 11

On the Ethereum blockchain the “nonce” of a transaction:

Options:

A.

Holds the gas amount to be paid to the miner writing the block that contains the transaction

B.

Is used to ensure that transactions by a given account are written in sequential order

C.

Is reset to zero after each successfully mined blocked

D.

Must always start with four zeroes

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Question # 12

Bitcoin implemented Byzantine Fault Tolerance through a system named:

Options:

A.

Authenticated Encryption

B.

Proof of Work

C.

PBKDF2

D.

None of the above

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Question # 13

Byzantine Fault Tolerance can be achieved only through Proof of Work.

Options:

A.

FALSE

B.

TRUE

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Exam Code: CBSA
Exam Name: BTA Certified Blockchain Solution Architect
Last Update: Feb 22, 2025
Questions: 229
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