Expedia Group Senior Software Development Engineer interview questions

Round2 : Question 1: You have a website & you want to know the number of hits made in last 5 seconds. Even a user refreshes the page, it will be considered a new hit. Provide the approach for this. Question 2: web service - cache - yes ---> return (timeout is 1 second) else go to api call - yes ---> return (timeout 5 seconds) else go to database - yes ---> return (timeout 10 seconds) default error You have to implement above kind of system where each module is used if it is Up, else check with next module. What design pattern you will follow. Question 3: Difference between SOAP & REST Question 4: Have you used Micoservices? Question 5: Which framework did you use in REST? He was suggesting like Jersey webserver, Spring.

Round3 : Question1 : How will you implement your own ThreadPool using jdk1.4like that of Executor in jdk1.5 Question2: How will you convert a monolithic application like makemytrip into Microservices? Question3: We have less number of resources for the tasks, so are you ready to work in odd extended hours?