Question

In the above figure from left to right, the correct order of the shaded levels are

(a) Network level, Application level, Transport level

(b) Application level, Network level, Transport level

(c) Transport level, Application level, Network level

(d) Network level, Transport level, Application level

The question was posed to me by my school principal while I was bunking the class.

This interesting question is from Secure Socket Layer topic in portion Internet Protocol, Network Addressing and Transport Level Security of Cryptograph & Network Security

Answer 1

Correct answer is (d) Network level, Transport level, Application level

For explanation I would say: IP/IPSec is the Network level, SSL or TLS is the Transport Level, Kerberos and S/MIME are the Application level.