Troubleshooting
Troubleshooting Playbooks
Build repeatable playbooks: isolate, test, document, resolve. Scenarios mirror password lockouts, VPN drops, and printer queues common in Korean SMEs.
₩420,000 · 5 weeks · Cohort · Live online
What is included
- Isolation-first methodology cards
- VPN and DNS scenario packs
- Printer queue recovery labs
- Screen-share communication cues
- Root-cause note templates
- Capstone diagnostic exam
Outcomes
- Run a six-step diagnostic on unfamiliar issues
- Document root cause in under 120 words
- Choose when to escalate vs. continue testing
Eun-woo Choi
Troubleshooting mentor; ex-enterprise NOC analyst.
FAQ
A modern browser and optional Wireshark intro — we provide guided captures.
Reviews
Playbooks for VPN drops were specific — the capstone felt like a real shift, not a quiz.
— Mei Lin, Vocational graduate
Wish we had one more printer scenario; still the clearest troubleshooting flow I have used.
— Tomás