Last round was about operations. Interviewer was an operations engineer and we discussed a lot of high level design and how to run live production systems with no downtime. We talked about some distributed systems problems, rolling out code to production, monitoring etc.
Walk through a directory-like structure, outputting the names of folders and files. Each folder/file should be indented to the left according to its level from the root, and also should have the number of files it contains overall beneath it. E.g.: ------ docs(3) -marketing(3) --october(2) ---file.doc ---invoice.doc --november(1) ---new_invoice.doc -publications(0) screens(1) -screen1.png ------
Design a system that is able to process N types of jobs - i.e. job of types A, B, C, etc. The pipelines of jobs per type should be independent, i.e. a long-running job A should block only the queue of jobs A, but not block the queue of jobs B. And the results from each type of job queues should be delivered in the order of input.
Small 20-min size questions to code a problem up on a whiteboard
What experience do you have working with databases.
What is singleton? Write code to implement singleton?
what is a cyclic barrier in java
What is a soft reference in java
English speaking
How old were you when you were given your first balloon?
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