Monitoring deployed contracts in Blockchain / Solidity - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main purpose of monitoring deployed smart contracts?

To track contract activity, detect errors or unusual behavior, and ensure the contract operates as expected after deployment.

beginner

Name a common tool used for monitoring Ethereum smart contracts.

Etherscan is a popular blockchain explorer that allows monitoring of Ethereum smart contracts by tracking transactions and events.

intermediate

What is an event in a smart contract and why is it important for monitoring?

An event is a log emitted by a smart contract during execution. It helps external systems track contract actions without reading the entire blockchain state.

intermediate

How can alerts be set up for smart contract monitoring?

Alerts can be configured using monitoring services or custom scripts that watch for specific events or transaction patterns and notify users via email or messaging apps.

advanced

Why is it important to monitor gas usage in deployed contracts?

Monitoring gas usage helps detect inefficient contract functions or potential attacks that cause excessive costs, saving money and improving performance.

Which of the following is NOT typically monitored in deployed smart contracts?

A User's private keys

B Transaction status

C Contract events

D Gas consumption

User's private keys are private and should never be monitored or exposed by contract monitoring tools.

What does a smart contract event provide for monitoring tools?

A A way to change contract code

B Automatic contract upgrades

C Access to user wallets

D A log of specific contract actions

Events are logs emitted during contract execution that help monitoring tools track contract actions.

Which tool can you use to view transactions and events of an Ethereum contract?

A Jenkins

B GitHub

C Etherscan

D Docker

Etherscan is a blockchain explorer for Ethereum that shows transactions and contract events.

Why set up alerts in smart contract monitoring?

A To automatically update contract code

B To notify when unusual activity occurs

C To increase gas fees

D To disable the contract

Alerts notify developers or users when something unusual or important happens in the contract.

What can high gas usage in a contract indicate?

A Potential bugs or attacks

B Efficient contract execution

C Contract is paused

D User wallet balance

High gas usage may indicate inefficient code or malicious activity causing excessive costs.

Explain how monitoring events helps maintain deployed smart contracts.

Think about how events act like messages from the contract.

Describe the steps to set up an alert system for a deployed smart contract.

Consider what you want to watch and how you want to be notified.