Address whether each defense method listed above (single router, defense-in-depth, and demilitarized zone) is sufficiently different from all others. Justify the use of defense perimeters in relation to an organization's type, structure, specific needs and size. Explain whether a DMZ can provide a better defense perimeter against threats than a single, web-facing router?Are there any special security issues in DMZ methods that are not found in the other defense perimeters?

Check the explanation

Explanation:

1) The single router approach is a security Implementation of all security policies and the defense-in depth approach employs a firewall. the DMZ approach Is establish between two routers with a firewall.

2) The single router approach is for small offices and homes.

The defense in depth approach is for large organizations.

The DMZ approach is for publicity operated networks.

3) The DMZ can provide better defense because it has more than two firewall for increased security.