Cryptocurrency Study Guide 2026
Everything you need to pass the Cryptocurrency exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Cryptocurrency Exam Format at a Glance
📚 Cryptocurrency Topics to Study (74)
✍️ Sample Cryptocurrency Questions & Answers
1. What is a 'replay attack' in the context of blockchain hard forks?
After a hard fork, a replay attack broadcasts a valid transaction from the original chain on the new chain, potentially draining funds on both chains simultaneously.
2. In a DAO governed by a smart contract, what typically happens when a proposal passes?
On-chain governance contracts automatically execute approved proposals (treasury transfers, parameter changes) after a mandatory timelock period, removing the need for trusted intermediaries.
3. What are sidechains, exactly?
Explanation The correct answer Any mechanism that allows tokens from one blockchain to be securely used within a completely separate Blockchain
4. What is a Dash Masternode and how does it work?
A Dash Masternode is a specialized type of node on the Dash cryptocurrency network that provides advanced services beyond basic transaction processing. These services include InstantSend (instant transactions), PrivateSend (transaction mixing for privacy), and governance functions. Masternodes require a collateral of 1,000 DASH and are rewarded for their services, contributing to the network's security and functionality.
5. What is a '51% attack' in cryptocurrency networks?
A 51% attack occurs when one entity controls the majority of mining power, allowing them to double-spend coins or reverse transactions.
6. What is an Automated Market Maker (AMM) in DeFi?
An AMM uses liquidity pools and mathematical formulas to automatically price and swap assets without needing a traditional order book.
🎯 Free Cryptocurrency Practice Tests
📖 Cryptocurrency Guides & Articles
What Practice Test Geeks adds beyond an AI chat for Cryptocurrency
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- A timed, full-length Cryptocurrency mock exam — 50 questions in 60 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed Cryptocurrency question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable Cryptocurrency cheat sheet you can print or save as a PDF.
- Cryptocurrency flashcards built from the same question bank.
- Free Cryptocurrency practice tests with the correct answer shown after each question.