Blockchain Developer Certification Practice

What does Injected Web3 allow developers to do?

1. Compile Solidity code

2. Deploy contracts on the main net or test nets

3. Manage Ethereum accounts

4. Convert bytecode into human-readable formats

The correct answer is: Deploy contracts on the main net or test nets

Injected Web3 refers to a method that enables the integration of blockchain network functionality directly into web applications through a browser extension or other applications that inject Web3 functionality into the JavaScript context of the webpage. This allows developers to interact with Ethereum blockchain securely and efficiently without requiring a full local node. The choice that indicates the use of Injected Web3 for deploying contracts on the main net or test nets captures the core functionality well. Developers can use libraries like Web3.js in conjunction with Injected Web3 providers (such as MetaMask) to access Ethereum's blockchain features. This means they can create, compile, and deploy smart contracts directly from their web application environment, utilizing the existing accounts and connections provided by the injected library. The other options do not accurately reflect the primary functionality provided by Injected Web3. While managing Ethereum accounts is a part of what Injected Web3 facilitates, it is not the primary focus, as the main application lies in interacting with smart contracts and deploying them. Compiling Solidity code usually happens in development environments or using specific tools like Remix, rather than directly via Injected Web3. Similarly, converting bytecode into human-readable formats is typically done through separate tools that analyze smart contracts rather than through the Injected Web3