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Difficulty - Medium

Total Plays - 34

Allowed Time - 10 sec

Best time - 0.734

Which consensus offers fastest finality?

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#A

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#D

Explanation:
BFT-based (Byzantine Fault Tolerant) consensus mechanisms achieve instant or near-instant finality by requiring agreement among validators in just one round of communication, allowing transactions to be finalized in seconds—faster than PoW, PoS, or DPoS.

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Kaustubh
@kaustubh • Sep 4, 2025

Sep 4, 2025

350

How'd you explain Blockchain to a 5 and a 10 Year Old?

Just curious - how’d you go about explain what blockchain is to a 5 and a 10 year old? Someone asked me - and I couldn’t. Let me know.

Like 5 Replies 2
Difficulty - Medium

Total Plays - 65

Allowed Time - 10 sec

Best time - 1.561 sec

What is the EVM?

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#D

Explanation:
The Ethereum Virtual Machine (EVM) is a global, decentralized computer that executes smart contracts on the Ethereum blockchain. It ensures every node produces the same results, keeping the network consistent and secure.

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Masum Ahmed
@RUVjrx2 • Aug 28, 2025

Aug 28, 2025

357

4 YoE exp as fullstack , looking to switch to web3 ever since I went to TOKEN2049

I am having a 4 YoE in Fullstack development, have been working in react , typescript, node , AWS , Docker , kubernetes, testing , python . Have little knowledge...

Like 7 Replies 2
Difficulty - Medium

Total Plays - 51

Allowed Time - 10 sec

Best time - 1.790

What is front-running in DeFi?

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#A

#B

#C

#D

Explanation:
Traders exploit transaction ordering for profit.

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Masum Ahmed
@RUVjrx2 • Aug 28, 2025

Aug 28, 2025

315

TOKEN2049 Dubai

Anyone who participated in TOKEN2049 Dubai?

Like 2 Replies 1
Difficulty - Medium

Total Plays - 45

Allowed Time - 10 sec

Best time - 1.153

Q. Which best describes a 51% attack in blockchain?

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#A

#B

#C

#D

Explanation:
A 51% attack happens when one miner/validator controls over half the network’s power or stake. This lets them rewrite history or double-spend coins, threatening security. It’s rare on large chains like Bitcoin but a risk for smaller ones.

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Angela R
@Web3SkillMapper • Aug 24, 2025

Aug 24, 2025

358

Is a Blockchain MBA worth it for getting into Web3 leadership?

I’m thinking about joining a Blockchain MBA or an executive program. I want to move into a leadership role in Web3 like product, strategy, business development, or similar.Has anyone here...

Like 9 Replies 2
Shubhada Pande
@ShubhadaJP • Dec 18, 2025

Dec 18, 2025

1.4K

Blockchain Developer Resume Guide (2025): How Web3 Recruiters Shortlist Candidates

Landing a blockchain job in 2025 takes more than “knowing Solidity” or completing a few tutorials. Your resume is still the gateway — but Web3 hiring has changed. Recruiters and...

Like 5 Replies 1
Sayali Bhandari
@SayaliB • Aug 19, 2025

Aug 19, 2025

1.5K

CertiK Blockchain Infrastructure Engineer Interview Need tips

Hey all, I just gout an interview call for CertiK Blockchain Infrastructure Engineer position. Can anyone share tips and experiences for preparation? I have experience with server management, AWS, Alicloud,...

Like 5 Replies 1
Web3WandererAva
@Web3Wanderer • Aug 18, 2025

Aug 18, 2025

2.1K

Career in CBDC Which Tech Stack, Roles, and Skills Needed for Blockchain Developers

How does the CBDC tech stack differ from other blockchain projects? I’m preparing for a CBDC project interview and want advice from those with experience.I’m a software developer with a...

Like 4 Replies 2
Bondan S
@Layer1Bondan • Aug 17, 2025

Aug 17, 2025

2.4K

Which job offer should I choose Startup or Established Blockchain protocol

I am confused and excited too. I have two job offers in hand. one from a layer 1 startup and another from the established blockchain protocol. Though the startup is...

Like 1 Replies 3
Santosh kumar Valuroutu
@R7uufvU • Dec 14, 2025

Dec 14, 2025

464

Need guidance

I learned blockchain basics, solidity and foundry and I don't know what to do next. I am interested in daaps and have some ideas.

Like 7 Replies 0
ChainMentorNaina
@ChainMentorNaina • Aug 11, 2025

Aug 11, 2025

1.3K

Is Blockchain Development More Stressful Than Software Engineering? Seeking Real Developer Insights

I’m thinking a career switch from Python development to blockchain development, but I’m unsure about the reality of stress, workload, and job security in this field. For experienced blockchain developers,...

Like 5 Replies 2
BennyBlocks
@BennyBlocks • Aug 11, 2025

Aug 11, 2025

1.6K

Can Non-Developers switch to a Solidity & Web3 Career?

Hey all, has anyone made a switch to the development side in the blockchain industry? I am from non-technical background and dont have any experience or knowledge of coding or...

Like 8 Replies 4
Andria Shines
@ChainSage • Aug 10, 2025

Aug 10, 2025

1.6K

which skills are essential for Ethereum & DApp Career

Howdy all, I am CS student and interested in blockchain development especially in Ethereum and Dapps development as most of the job descriptions are for these only.But am very confused...

Like 8 Replies 4
MakerInProgress
@MakerInProgress • Aug 7, 2025

Aug 7, 2025

1.1K

Career Scope: Data Structures in Blockchain Development

I’m preparing for a tech interview that focuses heavily on blockchain, and I’m trying to really understand how blockchain works as a data structure. I know the basics like features...

Like 7 Replies 2
SmartChainSmith
@SmartChainSmith • Aug 7, 2025

Aug 7, 2025

1.3K

Is Solidity Still the Top Choice for Smart Contract Development in Blockchain?

Hi!I am new to blockchain. I just started learning Solidity for Ethereum. But I heard about Vyper, Rust, and Michelson too. Now I am not sure which language to choose.If...

Like 3 Replies 5
Sayali Bhandari
@SayaliB • Aug 6, 2025

Aug 6, 2025

1.3K

Interview struggle: ERC-20 & ERC-721 questions Need Advice!

I got my first interview call as a smart contract developer, and I am prepping hard, brushing up on concepts and other things. While studying, I am stuck with the...

Like 3 Replies 4
Akemi R
@snappy-bullet • Aug 5, 2025

Aug 5, 2025

405

Is Dubai Really Better for Blockchain PMs? Salary, Taxes & Real Life vs Bangalore

Are there any professionals here actually working as a blockchain PM in Dubai or Bangalore? I keep hearing “Dubai is tax-free, you’ll save a ton”—but rents look nuts.Is it true...

Like 4 Replies 1