Hello sales2161
The courses on Networklessons are organized by either certification or topic. All the courses that are organized by topic include all of the information for that particular topic that is needed for certifications up to and including CCIE.
If you’re studying specifically for a particular certification, it’s best to use the course of that particular certification. If you just want to learn about a particular topic in depth, then go for the topical courses.
For this particular case, the BGP course goes beyond what is needed for CCNP. If you’re focusing on the CCNP certification, i would recommend using the CCNP courses (ROUTE, SWITCH, TSHOOT) on the site to focus on the required content.
I hope this has been helpful!
Laz