NSCT – Cryptography Basics MCQs

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1. . Cryptography is the practice of:





2. . The original readable message in cryptography is called:





3. . The encrypted form of a message is known as:





4. . The process of converting plaintext into ciphertext is called:





5. . The process of converting ciphertext back into plaintext is called:





6. . A cryptographic key is:





7. . Which type of cryptography uses the same key for encryption and decryption?





8. . Which type of cryptography uses two different keys (public and private)?





9. . The public key in cryptography is:





10. . The private key in cryptography is:





11. . Which of the following is an example of a symmetric encryption algorithm?





12. . Which of the following is an example of an asymmetric encryption algorithm?





13. . Hashing is used to:





14. . Which of the following is a hashing algorithm?





15. . Digital signatures are used to ensure:





16. . A brute force attack is:





17. . Which cryptographic technique ensures that data has not been altered?





18. . Cryptography mainly helps in providing:





19. . Which of the following is used to secure online communication?





20. . The main purpose of cryptography is to:





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