Inconsistency in the "Enabling Internal X509 Authentication" Lecture

When he demo the configuration file approach, he was using clusterFile

But when the lecturer was doing command line, he was using --PEMKeyFile:

Which one should we use for Homework 1.3? where we were only given THREE 3 PEM files, --PEMKeyFile obviously was needed but how about the clusterFile? do we need it in the configuration file? can we use the same server.PEM???

Really wonder why the lecturer blacked out a big portion of the screen when showing the configuration file!


This is a standard semantic difference (one of many) between the format for a configuration file and the options available when starting the mongod process from the command line. The documentation here shows a map of the major differences.

No, not true: