Some of the questions you will need to be familiar both top-down and bottom-up in current operations patterns (devops, containers, change config, etc). You should be advanced in change config, infrastructure as code, immutable production, and know the trade offs between different tools and patterns.
Understand patterns of deployment and development life cycle with continuous integration and continuous delivery.
Transmute one word to another by the shortest path of 1-letter changes through a path of actual words.
Find all files with the same file data and link them up.
Design a data structure to read a stream of temperatures and find the max within the past 24 hours
theoretical best trans-continental round-trip ping time
Lots of algorithms, form low abstraction level to high level. I was lucky to know some of the answers or be in the right path for them. Some problems are just impossible, literally. They just want to see how you think and behave.
Parse a IPv4 address using RegEx
Very technical Java concurrency question that required a LOT of knowledge of concurrency in Java.
3. what's treemap and sortmap in Java
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