In 5G, The RACH Process (Random Access) is very important especially in case of NSA since a 5G RACH failure in NSA results in a 5G Call Drop.
In this session, we go through UE Logs to understand various RACH Information Elements (IE) while explaining how UE decodes those IEs to find the RACH configuration and location.
The session also explains the basic RACH Issues that are observed in the networks along with potential Troubleshooting and Optimization actions!
YouTube: 
Top 5G Interview Question: 5G RACH Process - YouTube