1. What is the best approach to cost optimization?
2. Explain how you handled data imbalance.
3. How is availability for S3 achieved across regions?
4. Sum of Even & Odd Digits You need to determine the sum of even digits and odd digits separately from a given integer. Input: The first line of input is an integer T representing the number of test cases. Each test case consists of a single line with an integer N. Output: For each test case, output two space-separated integers: the sum of even digits and the sum of odd digits, respectively. Example: Input: 2132452468 Output: 6 920 0 Constraints: 1 <= T <= 5 0 <= N <= 10^{18} Note: You do not need to print anything yourself. Just implement the function to return the required values.
5. Explain the RANKX function in Power BI.