Meta Data Engineer I interview questions

Python questions: 1. Replace None value with previous value present in a list. 2. Given a ´dictionary, print the key for nth highest value present in the dict. If there are more than 1 record present for nth highest value then sort the key and print the first one. 3. Given two sentences, you have to print the words those are not present in either of the sentences.(If one word is present twice in 1st sentence but not present in 2nd sentence then you have to print that word too) 4. Forgot another question you have to pass all the cases, specially on edge cases. SQL questions: 1. Mostly % calculation, also refer the questions available here in Glassdoor. Next will be my Onsite Interview of 3.30hr. If anyone can help me on that or else I will update later on that interview as well.