A9.com interview questions

Find the median of an array

Q1: Time required to load 1gb of data Q2: situational how do you complete a task if one of the requirement is missing? Q3: Given table having columns Date and CustomerID , Date when a customer visited website and customerID identifying a customer. Create a report which will display last month's % of returning customers. example: Date 0 1 2 3 4 ......30 ( These are the columns for report) 17thDec2017 25 22 21 19 18....3 (values