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Arif

@ofh3VYy • 3mos

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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Web3WandererAva

@Web3Wanderer • 2w

What is the difference between blockchain developer and blockchain engineer?

Can someone explain the real difference between a blockchain developer and a blockchain engineer? Or do these titles mean the same thing in job listings? I recently graduated in computer...

6

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Bondan S

@Layer1Bondan • 2mos

Common Blockchain Coding Challenges in Smart Contract Developer Interviews

What coding challenges come up in blockchain and smart contract developer interviews? I’m graduating in computer science next month. I interned for six months on a dApp, but I still...

6

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Shubhada Pande

@ShubhadaJP • 3mos

Top 10 In-Demand Blockchain Skills and Associated Job Roles for 2025

Blockchain tech is transforming industries worldwide, from finance and healthcare to supply chain and digital identity. As the ecosystem matures, the demand for specialized blockchain professionals is skyrocketing.LinkedIn and Glassdoor...

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Difficulty - Medium

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Allowed Time - 10 sec

Best time - 1.626 sec

What Rust feature optimizes blockchain transaction processing?

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Explanation:
Rust’s async programming, with crates like Tokio, enables high-throughput transaction processing in blockchain nodes. It supports concurrent handling of network requests and validations.

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Difficulty - Medium

Total Plays - 25

Allowed Time - 10 sec

Best time - 1.375 sec

Why is Rust preferred for high-performance blockchain runtimes?

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Explanation:
Rust’s zero-cost abstractions allow developers to write high-level code without runtime performance penalties, ideal for blockchain runtimes. This ensures efficient execution of smart contracts and consensus algorithms.

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Difficulty - Medium

Total Plays - 20

Allowed Time - 10 sec

Best time - 1.930 sec

What is the purpose of the #[account] macro in Anchor?

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Explanation:
The #[account] macro in Anchor is used to define and validate account structures for Solana smart contracts. It simplifies account management and ensures data integrity.

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Difficulty - Medium

Total Plays - 18

Allowed Time - 10 sec

Best time - 3.669 sec

Which Rust feature ensures type safety in blockchain data structures?

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Explanation:
Rust’s ownership model enforces strict rules on data access, preventing issues like double-spending in blockchain applications. It ensures compile-time safety for complex data structures.

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Difficulty - Medium

Total Plays - 24

Allowed Time - 10 sec

Best time - 2.549 sec

Which Rust framework is used for Solana smart contract development?

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Explanation:
Anchor is a Rust-based framework designed for developing secure and efficient smart contracts on Solana. It simplifies the process with macros and abstractions for Solana’s programming model.

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Abdil Hamid

@ForensicBlockSmith • 3mos

How to specialize in a specific blockchain ecosystem like Solana, Hyperledger, or Polkadot?

I’m a Python developer planning to transition into the blockchain space, and I’m trying to figure out the best ecosystem to focus on first. Should I pick Solana, Hyperledger, or...

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Difficulty - Medium

Total Plays - 32

Allowed Time - 10 sec

Best time - 2.038 sec

What’s the purpose of an NFT whitelist?

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Explanation:
Whitelists let selected users mint first. It rewards loyal fans and avoids gas spikes.

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Difficulty - Medium

Total Plays - 26

Allowed Time - 10 sec

Best time - 1.663 sec

How do fashion brands use NFTs?

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Explanation:
They link physical goods to NFTs. This proves ownership and authenticity.

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Difficulty - Medium

Total Plays - 23

Allowed Time - 10 sec

Best time - 1.460 sec

What’s NFT “fractionalization”?

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Explanation:
Many people co-own one NFT. This makes pricey NFTs affordable.

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Difficulty - Medium

Total Plays - 22

Allowed Time - 10 sec

Best time - 1.446 sec

Which platform focuses on NFT-based games?

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Explanation:
Decentraland is a virtual world where users buy land and items as NFTs. It blends gaming and digital ownership.

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Difficulty - Medium

Total Plays - 27

Allowed Time - 10 sec

Best time - 1.486 sec

Why do some NFTs include royalties?

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Explanation:
Royalties ensure creators earn money each time their NFT is resold. This gives artists ongoing income.

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