Blockchain & Web3 Engineering: Master Mock Exams
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Blockchain & Web3 Engineering: Master Mock Exams – taught by Himanshu Kaushik – is an intensive Udemy training that prepares you for real‑world blockchain interviews. Updated July 2026, this free‑coupon‑eligible course targets anyone searching for a free blockchain course, a blockchain Udemy course, or how to learn Web3 online. It delivers scenario‑driven mock exams, detailed explanations, and a certification‑ready skill set that employers in the decentralized space value highly.
What You'll Learn
- Build secure smart contracts in Solidity while preventing reentrancy attacks and minimizing gas consumption.
- Master Proof‑of‑Stake consensus mechanisms, asymmetric cryptography, and Layer‑2 rollups for blockchain fundamentals.
- Learn how Automated Market Makers (AMMs) operate, calculate impermanent loss, and execute flash loans in DeFi.
- Understand decentralized storage solutions such as IPFS and how to integrate them into Web3 applications.
- Create robust Web3 authentication flows using MetaMask and wallet‑based login without passwords.
- Implement RPC node management with Infura and indexing strategies using The Graph.
- Analyze complex architectural trade‑offs when designing decentralized applications (DApps).
- Apply mock‑exam techniques to assess readiness for blockchain engineering interviews and certifications.
Course Details
- Instructor: Himanshu Kaushik
- Rating: 4.5 stars
- Duration: Not specified (on‑demand video)
- Level: Intermediate to Advanced
- Language: English (en‑US)
- Enrolled students: 9,640
- Last updated: Not specified
- Certificate: Yes, upon completion
- Includes: Lifetime access, mobile‑friendly content, practice mock exams with detailed explanations
What This Course Covers
Blockchain Fundamentals
- Evaluate asymmetric cryptography principles and the mathematics behind public‑key systems.
- Explore the Blockchain Trilemma and its impact on scalability, security, and decentralization.
- Compare Proof‑of‑Work versus Proof‑of‑Stake consensus models with real‑world examples.
- Solve scenario‑based questions that test foundational blockchain knowledge.
Smart Contracts & Solidity
- Write Solidity code that avoids reentrancy vulnerabilities and follows best practices.
- Optimize gas usage through efficient data structures and function design.
- Implement upgradeable contracts using proxy patterns and delegate calls.
- Use Chainlink oracles to fetch off‑chain data securely within smart contracts.
Decentralized Finance (DeFi) Engineering
- Dissect Automated Market Maker algorithms such as Uniswap v2/v3.
- Calculate impermanent loss and design strategies to mitigate it for liquidity providers.
- Execute flash loan attacks and defenses in a controlled mock‑exam environment.
- Model over‑collateralized lending protocols and understand risk parameters.
Web3 Architecture & Infrastructure
- Integrate IPFS for decentralized file storage and retrieval.
- Configure wallet authentication flows with MetaMask and WalletConnect.
- Manage RPC nodes using Infura, Alchemy, or self‑hosted solutions.
- Index blockchain data efficiently with The Graph and build subgraph queries.
Who Should Take This Course
- Software engineers aiming for senior blockchain or Web3 developer roles.
- Smart contract auditors who need rigorous practice tests to spot critical vulnerabilities.
- Technical founders building decentralized applications and seeking architectural confidence.
- Product managers responsible for defining blockchain product roadmaps.
- Intermediate developers transitioning from Web2 to blockchain engineering.
Prerequisites
- Proficient in at least one programming language (JavaScript, Python, or similar).
- Basic understanding of blockchain concepts such as transactions, blocks, and consensus.
- Familiarity with Solidity syntax is recommended but not mandatory.
Why Enroll in This Course
This training delivers a free coupon that grants 100 % off for a limited time, making it an affordable way to master blockchain engineering. The mock‑exam format mirrors real interview pressure, giving you confidence that other online tutorials lack. Enrolling now ensures you benefit from up‑to‑date content while the coupon remains active, positioning you ahead of peers in the competitive Web3 job market.
Course Highlights
- Lifetime access to all video lessons, practice exams, and future updates.
- Self‑paced learning allows you to study whenever and wherever you prefer.
- Certificate of completion validates your blockchain expertise to employers.
- Detailed explanations accompany every mock‑exam question for deep learning.
- Mobile‑friendly platform lets you review concepts on smartphones or tablets.
- Practice mock exams simulate real technical interviews for Web3 startups.
Frequently Asked Questions
Q: Is this course really free?
A: Yes, the course can be accessed at no cost when you apply the available free coupon, which provides a 100 % discount for a limited period. The coupon removes the price barrier while still granting full access to all materials.
Q: What will I learn in this blockchain course?
A: You will master core blockchain fundamentals, Solidity smart
Affiliate link — we may earn a commission
Affiliate link — we may earn a commission. Learn more
