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Difficulty - Medium

Total Plays - 21

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

@pqZmLBm • 2mos

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 - 29

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 - 24

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 - 22

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 - 21

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 - 26

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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Bondan S

@aNuFIlC • 3w

Web3 Job Offer Assessment: Token Compensation

Hi all, I need some urgent help in making a decision on a job offer. the good news is I got a job offer at a layer 1 as smart...

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Merry Wordsworth

@N026O0O • 2mos

How to write a cover letter for a blockchain job?

What’s the right way to write a good cover letter when applying for a job in blockchain?Should I focus more on the tech I’ve worked with or show my enthusiasm...

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Anne Taylor

@1SORudG • 1mo

Best Questions to Ask the Interviewer in a Blockchain Job Interview

What questions should I ask the interviewer in a blockchain job interview? I have my second interview for a blockchain developer role and want to show real interest. Should I...

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Shubhada Pande

@ShubhadaJP • 2mos

How to Become a Blockchain Engineer in 2025: Skills, Certifications & Career Guide

TL;DR:Why Blockchain Engineering? These are high-paying jobs, and its demand is increasing due to innovative opportunities as an emerging technology.Essential Skills: Master blockchain programming languages (e.g., Solidity, Rust), cryptography, consensus...

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smith taylor

@kmBguOK • 1mo

How to get a full-time blockchain developer job after internship?

How do I actually land a full-time blockchain developer job after doing two internships? Both of my internships are ending in about two weeks, and honestly, I’m starting to get...

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Difficulty - Medium

Total Plays - 31

Allowed Time - 10 sec

Best time - 1.466 sec

Which is a risk of using oracles?

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Explanation:
Centralized oracles can be a single point of failure. If they provide false data, contracts relying on them can be exploited.

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Difficulty - Medium

Total Plays - 25

Allowed Time - 10 sec

Best time - 1.368 sec

What does an Eclipse attack target?

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Explanation:
In an Eclipse attack, an attacker isolates a node from the network, feeding it false data. This can lead to incorrect transaction processing or vulnerability to double spending.

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Difficulty - Medium

Total Plays - 23

Allowed Time - 10 sec

Best time - 3.517 sec

What does the immutable keyword do in Solidity?

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Explanation:
immutable variables are assigned once during deployment and can’t be changed afterward. They are more gas-efficient than regular storage variables.

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