Skip to contentSkip to footer

Junior Software Engineer Interview Questions

Salaries
Interviews

7,250 junior software engineer interview questions shared by candidates

IBM is implementing a streaming analytics service for an online retailer to provide data on the best time to sell specific products. To accomplish this goal, the service needs a very fast way to calculate a number of basic formulas for a series of dates, quantity and product id. Assumptions: In production, the list of data could be in the hundreds of thousands of dates with quantities and product ids. The service will be called frequently as the user explores different data models. The data may not be normalized. There could be multiple lines with the same date and product id. In these cases you should sum all the quantity on input and work on that. Product ids are case sensitive. Input: Each line will contain a comma separated list of text date (yyyy-mm-dd), quantity, product id. For example: 2017-06-02,5,Apples 2017-06-02,2,pears 2017-06-03,3,pineapples Output: For each date create a line of this format: date, total items sold for date, average quantity of all items (to 2 decimal places), count of unique parts sold. For example:
avatar

Junior Software Engineer

Interviewed at IBM

3.9★
Dec 5, 2017

IBM is implementing a streaming analytics service for an online retailer to provide data on the best time to sell specific products. To accomplish this goal, the service needs a very fast way to calculate a number of basic formulas for a series of dates, quantity and product id. Assumptions: In production, the list of data could be in the hundreds of thousands of dates with quantities and product ids. The service will be called frequently as the user explores different data models. The data may not be normalized. There could be multiple lines with the same date and product id. In these cases you should sum all the quantity on input and work on that. Product ids are case sensitive. Input: Each line will contain a comma separated list of text date (yyyy-mm-dd), quantity, product id. For example: 2017-06-02,5,Apples 2017-06-02,2,pears 2017-06-03,3,pineapples Output: For each date create a line of this format: date, total items sold for date, average quantity of all items (to 2 decimal places), count of unique parts sold. For example:

Viewing 5501 - 5510 interview questions

Glassdoor has 7,250 interview questions and reports from Junior software engineer interviews. Prepare for your interview. Get hired. Love your job.