1. Why would you choose Mongoose over the MongoDB driver?
2. Write a program to find the sum and average of the digits that appear in the string, ignoring all other characters. For example, given the string 'PYnative29@#8496'.
3. Find the second most frequent string in a given set of strings.
4. Which cable is used to transfer data?
5. Describe the architecture of the application you previously worked on.