Multiple-choice and scenario-based cryptography questions.
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Do not use real passwords, secret keys, private keys, MFA codes, recovery codes, certificates, account data, or sensitive files.
Questions answered0/25
Cryptography GoalsQuestion 1 of 25
1. What is one main purpose of cryptography?
ConfidentialityQuestion 2 of 25
2. Which cryptographic goal focuses on keeping information private?
IntegrityQuestion 3 of 25
3. Which cryptographic goal focuses on detecting unauthorized changes?
AuthenticityQuestion 4 of 25
4. What can authenticity help verify?
PlaintextQuestion 5 of 25
5. What is plaintext?
CiphertextQuestion 6 of 25
6. What is ciphertext?
Algorithms and KeysQuestion 7 of 25
7. How do an algorithm and key work together?
Key ProtectionQuestion 8 of 25
8. Which item normally requires the strongest secrecy?
Symmetric EncryptionQuestion 9 of 25
9. What makes encryption symmetric?
Symmetric EncryptionQuestion 10 of 25
10. What is one main advantage of symmetric encryption?
Shared-Key RiskQuestion 11 of 25
11. What is one major challenge of symmetric encryption?
Key RotationQuestion 12 of 25
12. What should happen if a shared secret may have been exposed?
Asymmetric EncryptionQuestion 13 of 25
13. What makes cryptography asymmetric?
Public KeyQuestion 14 of 25
14. Which key may normally be shared openly?
Private KeyQuestion 15 of 25
15. Which key must remain protected?
Digital SignaturesQuestion 16 of 25
16. What can a digital signature help verify?
Private-Key ExposureQuestion 17 of 25
17. What should happen after suspected private-key exposure?
HashingQuestion 18 of 25
18. What does a cryptographic hash function produce?
HashingQuestion 19 of 25
19. What normally happens if a file changes?
Hashing vs EncryptionQuestion 20 of 25
20. Is hashing the same as encryption?
Integrity VerificationQuestion 21 of 25
21. What should happen if a downloaded file hash does not match the trusted value?
CertificatesQuestion 22 of 25
22. What does a digital certificate connect?
HTTPSQuestion 23 of 25
23. What does HTTPS help protect?
Certificate WarningsQuestion 24 of 25
24. What should a user do after seeing a certificate warning on a login page?
Cryptography DecisionQuestion 25 of 25
25. A private backup must remain unreadable to unauthorized users, show whether it changed, and remain recoverable after a device failure. What is the best plan?
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