while going through the networking section of CKA Course, I ran across the prereq lectures about Networking in Linux. Just wanted to know if that lecture is from a specific @Mumshad Mannambeth course ? I was looking forward to polish my linux networking fundamentals before continuing. Also does the exam deals with actual troubleshooting and linux level like ensuring if the port is open?, route is present?, pipe is configured? interface is up? or does the troubleshooting for the exam mostly deals with ensuring that the CNI plugins (pod or daemons/service) is configured correctly ?
No… These are basic concepts explained so that you can have an idea on networking.