You have been assigned to address the network security aspects of the ABC Company against external attacks. In your response, address the followings.

4. Most users employ a client-side digital signature to authenticate on a web server through SSL, but confidentiality can still be vulnerable. Identify the possible type of attack against the SSL and discuss its operations.

5. Which one of the following can be used to protect a network against unauthorised external connections: network encryption protocol, strong authentication, or an access control list of trusted devices? Justify your answer.

6. You want to improve the company security against external attacks in the Sydney branch, you are hesitant to choose among the use of static IP addressing, NAT, securing and analysing the system access logs. Choose the most appropriate option and rationalize your answer.

6 marks question each ,answer briefly