FinBox Interview Questions and Answers

Left, right, top, and bottom views of a Binary Tree

• Left view: Nodes visible when seen from the left side

• Right view: Nodes visible when seen from the right side

• Top view: Nodes visible when seen from the top

• Bottom view: Nodes visible when seen from the bottom

Identifying bottlenecks in a funnel involves analyzing stages to find where potential customers drop off.

• Map the funnel stages: Awareness, Consideration, Conversion.

• Use analytics tools to track user behavior at each stage.

• Identify drop-off rates: For example, if 100 users enter the funnel but only 20 convert, analyze why 80 left.

• Conduct user surveys to gather feedback on pain points.

• A/B test different strategies to see...read more

The number of employees managed by a manager is typically around 5-10, but can vary depending on the industry and company size.

• On average, a manager may oversee 5-10 employees, but this can vary based on the industry and company size.

• In smaller companies, a manager may only have 1-3 employees reporting to them, while in larger corporations, they could manage a team of 20 or more.

• The optimal number of employees managed ...read more

An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other.

• APIs define the methods and data formats that applications can use to request and exchange information.

• They enable developers to access the functionality of other software components or services without having to understand their internal workings.

• APIs can be used to retr...read more

The number of rows returned from a join depends on the type of join and the matching records in both tables.

• Inner Join: Returns only the rows with matching values in both tables. Example: If Table A has 5 rows and Table B has 3 matching rows, the result will have 3 rows.

• Left Join: Returns all rows from the left table and matched rows from the right table. Example: If Table A has 5 rows and Table B has 2 matching rows, ...read more

This SQL query identifies three consecutive regular customers who made purchases, highlighting customer loyalty patterns.

• Identify Regular Customers: Use a query to filter customers who have made multiple purchases over a specific period.

• Consecutive Purchases: Utilize window functions or self-joins to check for consecutive purchase dates for each customer.

• Group and Count: Group the results by customer and count the numb...read more