Blockchain IDEs and Plugins BDC Practice Questions (Page 7)

Questions 31–35

1. 31expert · hard

   A team is developing a DeFi protocol and needs to test against a fork of Ethereum mainnet. They are evaluating Hardhat and Foundry. The team values fast iteration and the ability to write tests in Solidity. Which framework should they choose?

   • ARemix, because it is browser-based and supports forking
   • BHardhat, because it has a mature plugin ecosystem and supports forking
   • CFoundry, because it supports forking and allows tests to be written in Solidity
   • DTruffle, because it has built-in forking support
   Reveal Solution Discussion Select an answer first
2. 32foundation · easy

   What is the primary purpose of the built-in local blockchain network in Hardhat?

   • ATo serve as a permanent public testnet for all users
   • BTo mine real Ether for developers
   • CTo replace the need for a real Ethereum client in production
   • DTo provide a fast, in-memory Ethereum network for development and testing
   Reveal Solution Discussion Select an answer first
4. 33application · medium

   A developer is choosing between a traditional IDE and a blockchain-specific IDE for a new smart contract project. They need to compile, deploy to a test network, and debug a transaction that reverts. Which advantage does a blockchain-specific IDE like Remix provide over a traditional IDE?

   • ABuilt-in Solidity compiler, deployment panel, and transaction debugger.
   • BAutomatic code optimization for gas efficiency.
   • CBuilt-in version control and team collaboration features.
   • DAbility to write smart contracts in any programming language.
   Reveal Solution Discussion Select an answer first
5. 34application · medium

   A developer is using Remix to deploy a contract to the Sepolia test network. They have a MetaMask wallet funded with test ETH. What is the correct way to connect Remix to Sepolia and deploy?

   • ACopy the contract bytecode and paste it into MetaMask's transaction builder to deploy.
   • BSelect 'Remix VM' and change the network to Sepolia in the environment dropdown.
   • CIn the Deploy & Run panel, select 'Injected Provider - MetaMask', ensure MetaMask is on Sepolia, and deploy.
   • DUse the 'JavaScript VM' environment and enter the Sepolia RPC URL in the deployment field.
   Reveal Solution Discussion Select an answer first
6. 35application · medium

   A developer is setting up a new Solidity project and wants to use Hardhat because the team needs a local blockchain that can be forked from a live network for testing. They also want to verify Solidity code style automatically on every save. Which setup best meets these needs?

   • AUse Remix with the Solidity compiler and the Remix IDE's built-in static analysis plugin.
   • BCreate a Truffle project and use the Truffle Debugger with the Solidity extension for VS Code.
   • CInitialize a Hardhat project, install the Hardhat Network plugin, and add the Solhint VS Code extension.
   • DInstall Foundry and use Forge with the Solidity Visual Developer extension in VS Code.
   Reveal Solution Discussion Select an answer first