Preparing for the CCNP 350-401 ENCOR Exam
January 31, 2020 update: No, you're not crazy. Cisco changed the exam number from 300-401 to 350-401.
For your convenience, I've put together the following list of my Pluralsight courses that cover the new CCNP ENCOR exam. By watching and following along with the hands-on demos in these courses, you can't go wrong.
Cisco Enterprise Networks: Infrastructure Security (DHCP snooping, dynamic ARP inspection, port-based access control, TACACS+/RADIUS)]
By the way, the blueprint for the ENCOR exam is mostly the same as the CCNP Routing & Switching track. In fact, the fundamentals are almost 100% identical. That means that you can prepare for the CCNP ENCOR exam by using existing R&S training materials.