Case studies

Technical case studies

Short, consistent write-ups of problems diagnosed and resolved. Every one follows the same eight-part structure, so a reader can compare one piece of work with another without hunting for the same facts in different places.

Format
8 parts, fixed order
Audience
Hiring managers and technical interviewers
Labelling
Simulated scenarios are marked as simulated

Structure of every case study

  1. 01

    Problem or scenario

  2. 02

    Environment and topology

  3. 03

    Symptoms

  4. 04

    Investigation steps

  5. 05

    Root cause

  6. 06

    Corrective action

  7. 07

    Verification

  8. 08

    Lessons learned

Content pending — the first case studies

Written from the lab troubleshooting stages as each run completes: VLAN, trunk, inter-VLAN routing, DHCP and DNS faults first. Each is labelled with the environment it came from — simulated scenarios are never presented as production incidents.