Free Cisco Network Academy Courses. Questions about them.

I wanted to post this both to share the free classes (with certificate of completion) offered by Cisco, as well as ask a question in regards to them.

For those with a CCNA or CCNP, do these classes go over the topics covered? I am curious as to whether or not I should take these classes before or after I start my CCNA learning material...

Getting Connected: https://www.netacad.com/courses/os-it/get-connected

NDG Linux Unhatched: https://www.netacad.com/courses/os-it/ndg-linux-unhatched

NDG Linux Essentials: https://www.netacad.com/courses/os-it/ndg-linux-essentials

Introduction to IoT: https://www.netacad.com/courses/iot/introduction-iot

Introduction to Packet Tracer: https://www.netacad.com/courses/packet-tracer/introduction-packet-tracer

Introduction to Packet Tracer Mobile: https://www.netacad.com/courses/packet-tracer/packet-tracer-mobile

Introduction to Cybersecurity: https://www.netacad.com/courses/security/introduction-cybersecurity

Cybersecurity Essentials: https://www.netacad.com/courses/security/cybersecurity-essentials

Mobility Fundamentals: https://www.netacad.com/courses/networking/mobility-fundamentals

Entrepreneurship: https://www.netacad.com/courses/business/entrepreneurship