Software Technologist 2 Interview Questions and Answers

Creating a program to generate a chart from Excel table data

• Use a programming language that has libraries for reading Excel files, such as Python with pandas

• Parse the data from the Excel table and plot it using a charting library like Matplotlib or Plotly

• Handle any errors or missing data in the Excel table gracefully

• Allow for customization of the chart's appearance and labels based on user input

Questions on OOPS, design patterns, and TPL with a parking lot design problem.

• To communicate between two threads, we can use synchronization primitives like locks, semaphores, or monitors.

• For designing a parking lot, we need to consider factors like the number of parking spots, types of vehicles, and payment methods.

• Design patterns are reusable solutions to common software design problems, like the Singleton pattern or the Observer pattern.

• TPL (Task Parallel Library) is a .NE...read more

Design a URL shortener system to generate short URLs for long URLs.

• Use a unique identifier for each long URL to generate a short URL.

• Implement a mapping system to map short URLs to long URLs.

• Consider using a hashing algorithm to generate short URLs.

• Include a database to store mappings of short URLs to long URLs.

• Implement a redirect system to redirect short URLs to their corresponding long URLs.

To find the overlapping area between two rectangles, we need to determine the intersection of the two rectangles.

• Calculate the x and y coordinates of the overlapping region by finding the maximum of the left edges and the minimum of the right edges.

• Calculate the width and height of the overlapping region by subtracting the x and y coordinates.

• The area of overlap is the product of the width and height of the overlapping region.