What is the primary purpose of the Truffle framework in Ethereum development?

To provide a development environment, testing framework, and asset pipeline for Ethereum smart contracts

To serve as a blockchain client that connects to the Ethereum network and relays transactions

To provide a user interface for deploying contracts without writing any code

To act as a Solidity compiler that converts high-level code directly to bytecode

A developer has deployed a contract to a local Hardhat network and wants to interact with it from a separate Node.js script that is not part of the Hardhat project. The script needs to call a read-only function. Which setup is required?

Use the Hardhat runtime environment by requiring `hardhat` in the script.

Use Truffle's `truffle-contract` library with the contract's artifact JSON.

Use ethers.js with a provider pointing to `http://localhost:8545` and the contract address and ABI.

Use `web3.js` with a provider pointing to `http://localhost:8545` and the contract's Solidity source code.

In Hardhat, how do you configure multiple networks?

By creating a separate file for each network

By adding a networks object in hardhat.config.js

By editing the package.json scripts

By using environment variables only

Which feature of Hardhat helps developers debug smart contracts by providing stack traces and console.log support?

Hardhat Network's built-in debugging capabilities

EC-CouncilBlockchain Developer Certification

Domain 6Objective 1

Blockchain Development Frameworks (Truffle, Hardhat) BDC Practice Questions (Page 4)

Part of the Development Tools, Web3, and dApps domain, which makes up ~11% of our current practice bank.

51questions here

11free pages

12concepts

12 Concepts in This Objective

Truffle Overview
Hardhat Overview
Project Setup with Truffle
Project Setup with Hardhat
Writing and Compiling Smart Contracts
Deploying Smart Contracts
Testing Smart Contracts
Debugging and Error Handling
Scripts and Automation
Environment and Network Management
Plugins and Extensions
Integration with Web3 and dApps

Questions 16–20

16foundation · easy
What is the primary purpose of the Truffle framework in Ethereum development?
Select an answer first
17expert · medium
A developer has deployed a contract to a local Hardhat network and wants to interact with it from a separate Node.js script that is not part of the Hardhat project. The script needs to call a read-only function. Which setup is required?
Select an answer first
18foundation · easy
In Hardhat, how do you configure multiple networks?
Select an answer first
19foundation · easy
Which feature of Hardhat helps developers debug smart contracts by providing stack traces and console.log support?
Select an answer first
20application · medium
A team wants to automate contract deployment and also manage deployments across multiple environments. They are using Hardhat. Which plugin should they consider?
Select an answer first

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