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CBSA Exam Dumps - BTA Certified Blockchain Solution Architect

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Question # 4

Consider the following scenario: A solo app developer wants to create their own cryptocurrency and build a blockchain based that allows users to buy and sell second-hand items with that cryptocurrency from each other. Before the transaction is considered complete, the purchaser must put the funds in an escrow service and the sender must enter the courier tracking number into that same escrow. Time is of the essence and this developer doesn’t want to worry about networking of infrastructure. This app must be fully autonomous or “decentralized”.

Which architecture would best solve the product need?

A.

Ethereum for token creation and escrow service; User-facing features built with web technologies and deployed through IPFS

B.

Ethereum for token creation; Traditional multitier API and database for escrow service; User-facing features built in web technologies then minified unto a String and deployed to an Ethereum Smart Contract

C.

Hyperledger Fabric for the escrow service and token creation using chaincode; User-facing features built with Hyperledger Composer

D.

The product cannot be built. Fully decentralized apps are not yet possible for user interface

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Question # 5

What is diagram referencing below?

A.

AND Gate

B.

XOR Gate

C.

OXR Gate

D.

NAND Gate

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Question # 6

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?

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 # 7

You currently on a conference call with an executive from a too big to fail bank. They are validating that they want to use Quorum or another enterprise blockchain. They specifically want to know what type of consensus algo it uses and what industry for the Quorum blockchain targets.

A.

BFT, cross industry

B.

POS, Financial only

C.

Majority voting, Financial only

D.

Majority voting, cross industry

E.

POW, cross industry

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Question # 8

The fabric framework is implemented on ______programming language.

What programming language?

A.

Go

B.

Python

C.

Node.js

D.

Java

E.

JS

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