Learn about Dynamic ARP Inspection (DAI) in this comprehensive video from the free CCNA 200-301 course. Explore ARP review, gratuitous ARP, DAI introduction, ARP poisoning, DAI operations, configuration, rate limiting, optional checks, and ARP ACLs. Practice your knowledge with end-of-video quizzes and gain hands-on experience through practical examples. Enhance your understanding of network security mechanisms and prepare for the CCNA certification exam with this in-depth tutorial.