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Difficulty - Medium

Total Plays - 25

Allowed Time - 10 sec

Best time - 1.325 sec

DeFi relies on oracles for:

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#D

Explanation:
DeFi protocols need real-world price data (e.g., ETH/USD) to execute core functions like determining loan collateral ratios, triggering liquidations, or enabling decentralized trades — all of which require oracles to securely fetch and verify external market prices.

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Jay

@NukangaNetwork • 4w

Where to start? Newbie in Blockchain.

I am building a Network State. Gradually I will be incorporating more and more Web 3 tech into our community such as NFTs, our own cryptocurrency and a DAO.How should...

2

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Difficulty - Medium

Total Plays - 23

Allowed Time - 10 sec

Best time - 1.584 sec

ERC-20 tokens are

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#A

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#D

Explanation:
ERC-20 is a standard for creating interchangeable tokens like cryptocurrencies or rewards.

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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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Difficulty - Medium

Total Plays - 18

Allowed Time - 10 sec

Best time - 1.103 sec

Faster transactions than PoW?

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#D

Explanation:
PoS processes transactions faster by skipping energy-intensive mining. Chains like Ethereum 2.0 use it.

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Bondan S

@Layer1Bondan • 2mos

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...

4

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Shubhada Pande

@ShubhadaJP • 1mo

New Profile Features Live on artofblockchain.club!

We’re excited to announce a major upgrade to your community experience! You can now:Upload a Custom Avatar: Make your presence stand out with your own image.Choose Your Community Name: Select...

6

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Difficulty - Medium

Total Plays - 21

Allowed Time - 10 sec

Best time - 2.779 sec

"Decentralized oracles" use:

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#A

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#C

#D

Explanation:
Decentralized oracles (e.g., Chainlink) source data from many nodes for trust.

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ABHI

@2QFzVmG • 4mos

Hello ArtofBlockchain Community

Hello Everyone!I'm excited to be a part of the ArtofBlockchain club and connect with like-minded folks who are passionate about decentralization, innovation, and the future of technology!My name is Abhiram...

5

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Santos P

@Santos • 2mos

How to Prepare for Blockchain Layer 2 System Design Interviews: Rollups, Sidechains, Security

Hey everyone, I’m prepping for a blockchain system design interview focused on Layer 2 solutions.I’m pretty comfortable with rollups and sidechains in theory, but security differences still trip me up....

3

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smith taylor

@kmBguOK • 3mos

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...

3

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SolidityStarter

@SolidityJatin • 1mo

How to Prepare for Live Coding Interviews as a Junior Blockchain Engineer

How do I actually prepare for live coding interviews for blockchain developer roles? I’m a junior smart contract engineer with about a year of hands-on experience in Solidity and Ethereum,...

6

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Angela R

@Web3SkillMapper • 2w

Exploring the skills and future demand for Cryptoeconomics

Hi all, can anyone tell me more about Cryptoeconomics and which skills are required for becoming a cryptoeconomist? I have been working as a data analyst in a FinTech firm...

5

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Ojejinmi Oluwatoyin

@KR0irHs • 4mos

Smart contrast Developer and a professional project listing expert

About MeAs a seasoned smart contract developer, I specialize in cryptocurrency exchange partnerships, collaborating with centralized and decentralized exchanges, price tracking platforms (e.g., CoinMarketCap, CoinGecko), and notable platforms like MEXC,...

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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