A) the IPv4 was not designed with security in mind as the environment wasconsidered friendly at the time, but today it has some known security issues. Explain two separate protocols that have had been introduced to address these deficiencies.
B) Which two extension headers are utilised in IPv6 to dojo.provide security?
C) Briefly explain three or four security services provided by each these two
Headers
D) Explain the difference between tunnel mode and transport mode
E) Briefly explain the basic differences between asymmetric and symmetric
Encryption methods