Not able to Run mongod as daemon

about to fork child process, waiting until server is ready for connections.
forked process: 342
ERROR: child process failed, exited with error number 100
To see additional information in this output, start without the “–fork” option.

mongod.conf :
storage:
dbPath: /var/mongodb/db
systemLog:
destination: file
path: /var/mongodb/logs/mongod.log
logAppend: true
processManagement:
fork: true
net:
bindIp: localhost
port: 27000
security:
authorization: enabled

Post screenshot that shows how you started mongod.

The first step of this lab reads like:

Update your configuration file such that …

This implies that you must use the configuration file to start mongod. From your screenshot this is not what you did.

Thank you!