Having been through the CCNA exam myself, I learned a lot of lessons the hard way. Here are 10 things I wish someone had told me before I started.
1. The Exam Is Not Just Multiple Choice
Expect drag-and-drop questions, simulations, and multi-select questions. Practice all formats, not just standard multiple choice.
2. Subnetting Must Be Second Nature
You don't have time to slowly calculate subnets during the exam. Practice until you can subnet in your head within seconds.
3. Know Your Show Commands
Understanding the output of show commands is crucial. Know what "show ip route", "show vlan brief", and "show running-config" look like.
4. Time Management Is Critical
120 minutes sounds like a lot until you're stuck on a simulation. Don't spend more than 2 minutes on any single question in the first pass.
5. The Official Cert Guide Is Dense But Worth It
Wendell Odom's book is thick and detailed. You don't need to memorize every page, but understanding the core chapters is essential.
6. Video Courses Alone Won't Cut It
Watching someone configure a switch is not the same as doing it yourself. Combine video learning with hands-on practice.
7. Practice Questions Reveal Your Weak Spots
Use practice tests to identify gaps in your knowledge, then go back and study those areas. Don't just chase a high score.
8. Understand Why, Not Just What
The exam will present scenarios you haven't seen before. If you understand the underlying concepts, you can reason through any question.
9. Take Breaks and Avoid Burnout
Cramming doesn't work for CCNA. The material is too vast. Pace yourself and study consistently over weeks, not days.
10. The Pass Is What Matters
Whether you pass with 825 or 1000, you get the same certification. Focus on passing, not perfection.