Security Fundamentals
What you must be able to do by the end of this week is listed below. Complete lessons, labs, interactive tools, and the assessment checkpoint.
ACLs, device hardening, and Layer 2 security
5 study days · ~8h 30m total · most sessions target ~90 minutes
Key topics
Videos
- primaryJeremy's IT LabDuration TBDSecurity Fundamentals (Day 48)
Practice
Complete device hardening lesson intro — list five secure management practices.
Quick review
Why disable telnet and use SSH on production devices?
Week checkpoint
Complete Week 7 quiz — place standard and extended ACLs on a sample topology.
Suggested practice
Week 7 security quiz
Week study guides
Week tools
Week objectives
- Understand ACLs and device hardening
- Understand Layer 2 security and AAA
Lessons
Training videos
Jeremy's IT Lab lectures (also embedded in lessons) plus supplemental videos from the Free CCNA 200-301 course playlist. Watch in order or jump to the topic you are studying.
Lesson pages embed Jeremy's IT Lab videos inline. Supplemental David Bombal videos from the linked playlist appear here and in matching lessons — all credited to their respective channels.
Labs & review
Labs
Lab content coming in Phase 2/3
Assessment
week7-security-quiz — original concept-based questions only.