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Blockchain CBDE Exam With Confidence Using Practice Dumps

Exam Code:
CBDE
Exam Name:
BTA Certified Blockchain Developer - Ethereum
Certification:
Blockchain Developer - Ethereum
Vendor:
Blockchain
Questions:
102
Last Updated:
Dec 22, 2024
Exam Status:
Stable
Blockchain CBDE

CBDE: Blockchain Developer - Ethereum Exam 2024 Study Guide Pdf and Test Engine

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BTA Certified Blockchain Developer - Ethereum Questions and Answers

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Question 1

When you are programming a game like poker of battleships where you need to hide opponents values is:

Options:

A.

with private state variables. This way nobody else other than the smart contract itself can see the information

B.

with external contracts holding those values. This way we can make sure that the information flow is following a clear logic and nobody else can access this information.

C.

You can't hide anything on the blockchain, because the information is public, just the call is private which means only other smart contracts would be limited in accessing that information.

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Question 2

Solidity files:

Options:

A.

can't be split across multiple files, everything should be in one single file.

B.

can be split across multiple files, but every contract must be in a file with the same name as the contract itself.

C.

can be spread across multiple files. To import all contract from a file you can use "import 'myfile.sol'. To import Contract MyContract from myfile.sol you use "import {MyContract as SomeContract} from 'myfile.sol';".

Question 3

It’s possible to access the blockchain via an Ethereum Node:

Options:

A.

only via JavaScript because there is the proprietary Web3.js library.

B.

by any programming language, as long as it adheres to the JSON-RPC standard.

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