1. With the help of a diagram, explain the operations in Kerberos.
2. List out the advantages of Kerberos Version 5 over Version 4.
3. What do you mean by X.509 authentication services?
4. Explain X.509 formats.
5. Define standard extensions of X.509 and its structure.
6. Write short note on PKI management model.
7. Explain PKI management operations with the help of a diagram.