1. Public key encryption/decryption is not preferred because
Correct Answer is : all of the mentioned
2. Which one of the following is not a public key distribution means?
Correct Answer is : Hashing Certificates
3. What is the PGP stand for?
Correct Answer is : None of the mentioned
4. PGP makes use of which cryptographic algorithm?
5. USENET is related to which of the following Public Key distribution schemes?
Correct Answer is : Public announcements
6. Which of the following public key distribution systems is most secure?
Correct Answer is : Public-Key Certificates
7. Which systems use a timestamp?
i) Public-Key Certificates
ii) Public announcements
iii) Publicly available directories
iv) Public-Key authority
Correct Answer is : i) and iv)
8. Which of these systems use timestamps as an expiration date?
Correct Answer is : Public-Key Certificates
9. Which system uses a trusted third party interface?
Correct Answer is : Public-Key Certificates
10. Publicly Available directory is more secure than which other system?
Correct Answer is : Public announcements