You need to ask questions that brings about the intent and ability to learn things. In case of welder, welding technique doesn’t change much and also what he in

You need to ask questions that brings about the intent and ability to learn things. In case of welder, welding technique doesn’t change much and also what he interviews for is exactly what he will do in the job as well. But in software, things change frequently and what you do in job is nowhere near to what you would be asked in interview. I wrote BST and reversing the linked list etc but not once I had a need for them in my job. You need good writing skill to express your thoughts and good understanding on system design