Question

A total of seven messages are required in the Public-Key distribution scenario. However, the initial five messages need to be used only infrequently because both A and B can save the other’s public key for future – a technique known as ____________

(a) time stamping

(b) polling

(c) caching

(d) squeezing

The question was posed to me during an interview.

My doubt is from Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

Answer 1

Correct choice is (c) caching

To explain: This technique is known as caching.