First smart contract deployment in Blockchain / Solidity - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a smart contract?

A smart contract is a small program stored on a blockchain that runs automatically when certain conditions are met. It helps make agreements without needing a middleman.

beginner

What is the first step before deploying a smart contract?

You write the smart contract code, usually in a language like Solidity, and test it locally to make sure it works as expected.

beginner

What tool is commonly used to deploy smart contracts on Ethereum?

Tools like Remix IDE or Truffle are commonly used to compile and deploy smart contracts on Ethereum.

beginner

Why do you need gas to deploy a smart contract?

Gas is the fee paid to the blockchain network to process and store your smart contract. It pays for the computing power used.

beginner

What happens after a smart contract is deployed?

After deployment, the smart contract has its own address on the blockchain. People can interact with it by sending transactions to that address.

What language is commonly used to write smart contracts on Ethereum?

A Solidity

B Python

C JavaScript

D C++

Solidity is the main language designed for writing smart contracts on Ethereum.

What is the purpose of gas in smart contract deployment?

A To pay for the computing resources used

B To store contract code for free

C To speed up the deployment

D To encrypt the contract

Gas is a fee paid to the network to cover the computing power needed to deploy and run contracts.

Which tool can you use to deploy a smart contract directly from your browser?

A Node.js

B Visual Studio Code

C GitHub

D Remix IDE

Remix IDE is a web-based tool that lets you write, compile, and deploy smart contracts easily.

What do you get after successfully deploying a smart contract?

A A private key

B A new cryptocurrency

C A unique blockchain address for the contract

D A software license

The deployed contract lives at a unique address on the blockchain where users can interact with it.

Before deploying, why should you test your smart contract code?

A To increase gas fees

B To avoid costly mistakes on the blockchain

C To make the contract private

D To get a contract address

Testing helps catch errors early so you don’t waste money deploying broken contracts.

Explain the main steps involved in deploying your first smart contract.

Think about what you do from writing code to having a live contract on the blockchain.

Describe why gas fees are important when deploying a smart contract.

Consider what happens behind the scenes when your contract is added to the blockchain.