1. Given a string in both capital and small letter, write a code to get count of eah charachter and print char #count in C# 2. LinQ library in C# Given a char list, write a code using linQ library to find char and it's count. 3. How do your company authorize the API. 4. difference between Authenticationa and authorization. 5. Different Authentication mechanism. 6. A table UserTransaction(userId, transactionDate, TransactionAmount) given find spend amount within given duration. 7. Different kind of component in angular. 8. How do you use your APIs in your Angular.