Describe the concept of zero-trust networking and its implications for network security and performance.

Because servers on a flat network handle the bulk of the company's business activities, a Network Security Design is required to increase protection and security. Because the network is flat, this is the situation. When and if a demilitarized zone is formed. What changes would you make to the present network structure?

Describe the purpose of a firewall in the context of the OSI model's network security layers. How does it filter network traffic?

When comparing IPSec to other network security approaches, such as application layer security, what are the advantages and disadvantages of using IPSec?