CareerCup

Two Sum. Then follow up three sum

There is a web page which shows us a table which has products against their price, tax, discount, delivery time. There are about 20 products. There is a Database which has these same things. In your Selenium Test Automation Framework, how will you cross verify what is shown in the webpage correctly maps to the DB values for that product? Or just tell me how will you solve this problem, no need to write the code.

You are using a Webmail UI like GMail. You have to send a "Hello" mail to a person.

1. Write all the scenarios which you would cover in an automated test framework.
2. If you have to test it for 50 different users, what are the challenges you might face in writing your test scripts?

It seems like a pretty easy solution. But at the end he said I need to answer based on the amount of experience I have. I have 9 years of experience as a QA. And he wanted me to give a solution like I actually have 9 years of experience. In short, I blew this question.

You have been given a map which holds book name and book author. One author might have several different books. But books are unique. Now, write a function which will return you a Map which will have the author name as unique and all the books he has written as values.

Book Map=["Java"-->"John", "C#"-->"Rob", "Ruby"-->"John", "Rails"-->"Rob"]

This should return a Map which has the following:

["John"-->{"Java","Ruby"}
"Rob"--{"C#","Rails"}]

Multi -level cache system design with different storage in each level.
Read Operation : – Minimum time to read a particular key from cache system. This should be followed by writing the key in all levels above it. Eg. if “key” is found at level ‘i’, add this key to cache present at 1 to i-1 level.

b. Write Operation: – Any write Operation should write in cache of all levels.

You can choose any algorithm for cache management like LRU, MRU.