Answer 1

Yes. That simple problem has a simple solution.

My understanding of exception handling is that you are going to catch any error & then be able to handle it, might be a few different types of error get handled simply, other errors get a different treatment, & some need the program to save your data & terminate with an error message.

Answer 2

Python3:
Exceptions are errors within a "try" statement. If you are monitoring for exceptions then your program can catch the error (and respond to it) instead of crashing your program.

One use is to catch garbage inputs (eg: a string when you are expecting am integer) & then loop back to get the user to input a valid value.