Q. \#1: Refer to pages 248 and 261 of your e-textbook*, explain the difference between Figures 6-7 and 6-9. What is the significance of the design in Figure 6-9? (5 Marks) Q. \#2: Explain how NAT (Network Address Translation) works. What are the reasons behind its use? (5 Marks) Q. \#3: Explain the following security protocols in your own words. What are their main features? (5 Marks) - SNMP v 3 - DNSSEC - SFTP - SRTP - IPSec