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What technologies facilitate the interaction with the Ethereum network for developers?

  1. Solidity

  2. Web3.js

  3. Hyperledger

  4. JavaScript

The correct answer is: Web3.js

Web3.js is a powerful library that enables developers to interact with the Ethereum network effortlessly. It provides a variety of functionalities that allow developers to connect their decentralized applications (dApps) to the blockchain, making it easier to manage accounts, send transactions, and call smart contracts. This library acts as a bridge between the user interface of a dApp and the Ethereum blockchain, streamlining communication and integration. While Solidity is indeed essential for writing smart contracts on Ethereum, it does not directly facilitate interaction with the network. It is the programming language used to develop the contracts themselves, rather than a tool to interact with them. Hyperledger is a framework for developing private blockchain solutions and does not focus on the Ethereum public network. It caters more to enterprise-grade blockchains in a permissioned context, making it less relevant for developers working specifically with Ethereum. JavaScript, while it is a widely used programming language, does not provide direct support or specific functionalities for interacting with the Ethereum network like Web3.js does. Web3.js is built on JavaScript but specifically equipped to handle Ethereum interactions, which is why it is the most suitable choice in this context.