Many people pass the CCNA exam through self-study using the latest learning materials supplemented with practical instruction. The exam covers a broad range of basic and modern networking concepts along with real-world Cisco network configuration scenarios. It's important to both understand the concepts and practice applying them. Simulated configuration exercises, practice labs, and sample test questions are especially helpful in preparing for the CCNA exam. Udemy courses can help you master the networking concepts and skills needed. You can also gain hands-on Cisco CCNA configuration and troubleshooting experience through practice labs.