Explain VPN design in the context of the scenario
Students often lose marks by describing VPN design without evaluating it. A better approach is to compare the expected behaviour with the observed behaviour, identify the security consequence, and justify the next control or investigative step. That sequence keeps the discussion specific to network security.
Where possible, compare the expected state with the observed state. For network security, that comparison gives the reader a clear basis for judging whether the control, configuration, artefact or result is acceptable.
Connect packet analysis to measurable security impact
A strong network security submission should do more than mention packet analysis. It should explain why the concept matters in the specific scenario, what evidence supports the interpretation, and where the analysis has limits. This makes the work easier to assess because the reader can follow the reasoning rather than infer it from screenshots or definitions.
A useful discussion also acknowledges constraints. Time, available evidence, lab scope, legal boundaries and incomplete data can all limit what can be concluded about TCP/IP or DNS traffic.