I suppose some people might freeze because it's so vague and they're wondering what you're getting at. Personally, I'd say, "Well, in most cases I use rsync or scp, but it depends on the situation."
Then I'd tell the story about how one time in the mid-90s I needed to transfer a huge (probably 100MB at the time) file between a Unix system and a Windows system in our office. After FTP, Samba, and a couple other methods ran painfully slow for unknown reasons, I discovered that a DCC in IRC flew at top speed.
But I'm not desperate for a job and trying not to say the wrong thing.
Then I'd tell the story about how one time in the mid-90s I needed to transfer a huge (probably 100MB at the time) file between a Unix system and a Windows system in our office. After FTP, Samba, and a couple other methods ran painfully slow for unknown reasons, I discovered that a DCC in IRC flew at top speed.
But I'm not desperate for a job and trying not to say the wrong thing.