Your question is Understanding ls -l and Curl. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain how ls -l works and what you can learn from it, and describe how you would use curl to troubleshoot a MongoDB-related connectivity issue.
Discuss the permission, ownership, link, timestamp, and file-type information shown by ls -l. For the connectivity portion, distinguish DNS, TCP, TLS, HTTP, and MongoDB wire-protocol failures, and explain the security risks of diagnostic commands.