Ask HN: Difficult Interview Question

I am interviewing candidates for data engineering role we have. One of the most critical questions I ask is:

"How can you transfer a file to another machine?"

I can't get anyone in an interview to answer this. I never get sftp,scp,rsync,email,usb,nas or s3 buckets/gsutil. Nothing. Nope.

I want to get into cool topics, parallel transfers, etc, nope.

Help. Is this question dated?