Q1. What is the primary goal of threat modeling?

A Eliminate all risk B Identify assets, adversaries, and controls that reduce risk C Speed up transactions D Comply with taxes

Q2. Why are metal backups recommended for seeds?

A They are cheaper B They resist fire and water better than paper C They are easier to photograph D They allow online sharing

Q3. What advantage does multisig offer?

A Lower transaction fees B Distribution of key control to avoid single points of failure C Faster confirmations D Unlimited supply

Q4. How should RPC access to a node be handled?

A Expose it to the internet B Restrict to trusted networks and authenticate requests C Disable logs D Share credentials

Q5. What is a common first step when key compromise is suspected?

A Ignore it B Isolate affected wallets and rotate credentials C Post on social media D Increase block size

Q6. Which practice improves travel security with hardware wallets?

A Carrying all seeds together B Using duress setups and storing primary keys at home C Disabling PINs D Using hotel safes without locks

Q7. Why conduct backup restore drills?

A To waste time B To verify backups are complete and usable under stress C To lower fees D To speed up mining

Q8. What secures Lightning channel state when you are offline?

A Proof-of-work B Watchtowers monitoring for revoked commitments C Bigger blocks D Seed reuse

Q9. What is proof-of-reserves used for?

A To speed up confirmations B To demonstrate that a custodian controls assets equal to liabilities C To mine blocks D To sign emails

Q10. Why favor end-to-end encryption for operational communication?

A It reduces battery usage B It prevents service providers or attackers from reading sensitive coordination C It mines coins D It replaces backups

Q11. How do tabletop exercises help security?

A They slow teams B They rehearse scenarios to uncover gaps in plans and tools C They replace audits D They remove the need for backups

Q12. What is a key reason to separate hot, warm, and cold storage tiers?

A For aesthetics B To align access speed with risk exposure and controls C To increase taxes D To share keys widely

Q13. What should accompany policy changes?

A Unsigned emails B Documented approvals and signed change logs C Verbal rumors D Automatic deployment without review

Q14. Which human factor control reduces credential theft?

A Password reuse B Hardware-based multifactor authentication C Sharing seeds D Plaintext credential storage

Q15. Why is peer selection important for Lightning nodes?

A Peers set block rewards B Reliable peers improve uptime, routing success, and reduce risk of bad states C Peers change subsidies D Peers sign your taxes