C4 Study Guide 2026
Everything you need to pass the C4 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.
📋 C4 Exam Format at a Glance
📚 C4 Topics to Study (21)
✍️ Sample C4 Questions & Answers
1. Which global organization develops standards to combat money laundering in crypto?
The Financial Action Task Force (FATF) issues guidelines to help countries combat money laundering and terrorist financing involving cryptocurrencies.
2. What is the primary function of Proof of Work (PoW) in a blockchain network?
Proof of Work requires miners to expend computational energy solving cryptographic puzzles, which secures the network and validates transactions.
3. What is the risk of storing a seed phrase digitally in a photograph or note-taking app?
Cloud-synced apps can be hacked or compromised, exposing the seed phrase and allowing an attacker to drain the wallet completely.
4. What happens if a user loses their private key in cryptocurrency?
Losing the private key means losing access to the associated cryptocurrency, as there is no central recovery system in decentralized networks.
5. A stakeholder questions the value of communication & stakeholder engagement initiatives. Which response best demonstrates ROI?
Building a culture of accountability with transparent reporting is the correct approach because effective communication & stakeholder engagement in the cryptocurrency certification consortium field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.
6. A new regulation impacts blockchain technology procedures. What should a C4 professional do first?
Ensuring compliance with current regulatory requirements and standards is the correct approach because effective blockchain technology in the cryptocurrency certification consortium field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.