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CBSA Exam Dumps - Blockchain Solution Architect Questions and Answers

Question # 24

You are considering writing a smart contract for Ethereum and would like to use a robust programming language.

Which programming language is considered the most flexible and robust for Ethereum?

Options:

A.

Solidity

B.

Python

C.

Serpent

D.

JS

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Question # 25

The CA (Fabric CA by default) issues a ______________ to each member (organization or individual) that is authorized to join the network.

Options:

A.

rootCert

B.

tCert

C.

eCert

D.

NodeCert

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Question # 26

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

Options:

A.

256

B.

128

C.

32

D.

20

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Question # 27

What is the accepted best practice for preventing contract addresses from changing when a new contract is released?

Options:

A.

Move your contract to a new blockchain

B.

Delete the old contract and add the new version in its place

C.

Addresses always change so use a calling contract

D.

Use the “- -addressForce” parameter when releasing a new contract

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Question # 28

Pending transactions on the Ethereum blockchain are always ordered by highest fee paid to lowest, and then written to the block in that order.

Options:

A.

FALSE

B.

TRUE

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Question # 29

To determine the anticipated load on an application, the number of end users should be considered along with?

Options:

A.

The location of the user

B.

The average number of transactions per user

C.

The average age of the user

D.

The average bandwidth speed of the user

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Question # 30

Blockchains are decentralized ledgers which, by definition, are not controlled by a central authority. Due to the value stored in these ledgers, bad actors have huge economic incentives to try and cause faults.

What algo was the original solution to the potential problem as specified by Satoshi?

Options:

A.

Proof of Stake

B.

Byzantine Fault Tolerance

C.

Proof of Burn

D.

Proof of Work

E.

Dynamic Proof of Stake

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Question # 31

Geth uses what port to expose the Ethereum RPC Service?

Options:

A.

2096

B.

8545

C.

4096

D.

2545

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Question # 32

The two main types of transactions you can perform in Hyperledger Fabric are:

Options:

A.

Chaincode Read and Chaincode Write transactions

B.

Deploy and Invoke transactions

C.

HFRead and HFAppend transactions

D.

Call and Write transactions

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Question # 33

A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.

What is required?

Options:

A.

Consensus

B.

Crypthography

C.

Bandwidth

D.

Availability

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Exam Code: CBSA
Exam Name: BTA Certified Blockchain Solution Architect
Last Update: Feb 23, 2025
Questions: 229
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