1. How would you balance business objectives with employee initiatives?
2. Given an input string like 'h,e,l,l,o', if the vowels are swapped, return the resulting string. For example, if the input is 'h,e,l,l,o', the output should be 'h,o,l,l,e'.
3. Which programming languages do you use regularly in your work? Do you have any technical certifications that make you qualified for this job?