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Ava Martin

Member • 4w

Ethereum Interview Question: How Do Protocol Upgrades Impact Deployed Smart Contracts?

How do Ethereum protocol upgrades, like new EIPs or hard forks, affect smart contracts that are already deployed on the network? In a recent Solidity interview, I was asked this...

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Shubhada Pande

Community Administrator • 1mo

How to Become a Blockchain Developer After 12th: The Ultimate 2025 Roadmap

To become a blockchain developer after the 12th, learn programming, master blockchain architecture, build real-world projects, earn certifications, and join global communities. This guide is your one-stop solution for launching...

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Lilly Gomes

Member • 1mo

How to Transition from ERP Developer to Blockchain API Developer

How can I move from ERP API development to blockchain API development? I have years of experience building APIs for ERP systems, mostly using Fortran. Blockchain tech feels very different...

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Emma T

Member • 3w

How to Answer “Why Blockchain?” in Interviews for Blockchain Security Careers

How do you answer the “Why do you want to work in blockchain?” question in interviews if you have a cybersecurity background? I’ve been working in cybersecurity and now I...

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Yagiz Partaker

Member • 1w

Best Ways to Gain Hands-On Blockchain Experience for Beginners

How do I actually get hands-on blockchain development experience? I’m a computer science student in my fourth semester. I understand blockchain basics and know how Ethereum and Bitcoin work, but...

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Sheza Henry

Member • 1mo

How Should I Answer DeFi Interview Questions on Securing Price Oracles?

What’s the best way to answer DeFi interview questions about securing price oracles? I’m getting ready for a technical interview with a DeFi protocol and want to go beyond the...

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Shubhada Pande

Community Administrator • 1mo

Learn Zero-Knowledge Proofs (ZKPs) in 30 Days: A Beginner’s Roadmap

Learn Zero Knowledge Proofs in 30 days by following a structured roadmap: master cryptography, build ZK circuits, and apply zero knowledge to real blockchain projects. This guide breaks down the...

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Shubhada Pande

Community Administrator • 1mo

Zero Knowledge Proof Explained: Privacy, zk-SNARKs, and Blockchain Applications

Zero Knowledge Proof (ZKP) enables blockchain users to verify transactions without revealing sensitive data. This cryptographic method solves blockchain’s privacy-scalability conflict by validating information confidentially while maintaining decentralization.How Zero Knowledge...

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Difficulty - Medium

Total Plays - 20

Allowed Time - 10 sec

Best time - 1.332 sec

What does OpenZeppelin provide?

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Explanation:
OpenZeppelin offers audited, reusable smart contract templates, like ERC-20 and ERC-721 implementations. It enhances security and saves development time.

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Difficulty - Medium

Total Plays - 16

Allowed Time - 10 sec

Best time - 1.128 sec

What does Ganache provide in blockchain?

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Explanation:
Ganache creates a local Ethereum blockchain for development and testing. It allows developers to deploy contracts and simulate transactions without real ETH.

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Difficulty - Medium

Total Plays - 14

Allowed Time - 10 sec

Best time - 0.081 sec

What is Web3.js used for?

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Explanation:
Web3.js is a JavaScript library for interacting with Ethereum, enabling dApps to communicate with nodes. It handles tasks like sending transactions and reading blockchain data.

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Difficulty - Medium

Total Plays - 14

Allowed Time - 10 sec

Best time - 2.186 sec

What is a token standard?

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Explanation:
A token standard, like ERC-20, defines rules for creating tokens on a blockchain. It ensures compatibility for cross-chain transfers and DeFi applications.

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Difficulty - Medium

Total Plays - 17

Allowed Time - 10 sec

Best time - 1.667 sec

What enables cross-chain communication?

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Explanation:
Interoperability protocols allow different blockchains to communicate and share data or assets seamlessly. Examples include Polkadot and Cosmos, which facilitate cross-chain transactions.

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Roger Zoe

Member • 1mo

What should I study next to become smart contract auditor

I know the MERN stack and have already built a few Solidity-based projects like crowdfunding and lottery apps. I now want to become a smart contract auditor and eventually earn...

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Ava Martin

Member • 1mo

What is blockchain developer vs engineer?

What is the difference between a blockchain developer and a blockchain engineer?I often see both these titles used in job descriptions, especially on LinkedIn and job portals, but I’m not...

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