The number of interview rounds can vary and actually depends on the position they are hiring for. There might be 4 to 5 selection rounds, along with an HR discussion.

1. How to get child records of a parent record given its sys_id. Children may contain more child records, and all child records down to the last level should be returned.

2. An array has 'n' number of elements. You should print the multiplication of those numbers, excluding the number in the first position in the first iteration, the second number in the second iteration, and so on. Example: An array has 1, 2, 3, 4, 5. It should print the results in the following way: 2345 1345 1245 1235 123*4

3. Create a text box with 0 as the default input on the UI and create two buttons below it labeled '+' and '-'. When '+' is clicked, the 0 in the text input should become 1 and keep increasing upon multiple clicks. When '-' is clicked, the 0 should be decremented, and so on.