Understanding computer networks answer the following with short summaries.

topic 1: Briefly describe the current Internet architecture and status.

topic 2: describe how the Internet design and/or technologies used make it resilient and successful for the intended purpose with supporting examples.
topic 3: describe how the Internet design, protocols, or technologies make it vulnerable. If a design feature or technology contributes to the success as well as the vulnerability of the Internet, you can discuss its contributions in both contexts.
topic 4: provide your opinion on how to keep the resiliency while reducing the vulnerabilities of the Internet.