-How would you check on Unix, if particular process is alive/running on the machine? -What is the difference between TCP and UDP? -How would you prevent deadlock in Java program? -How would you implement thread-safe counter? -What are benefits of using ConcurrentHashMap vs synchronized HashMap?
Very rude not professional even though answered whole technical questions
Data structure and database
Tell me about Spring boot beans
Tell me about how Spring boot beans creaed internally (detailed)
Tell me how HashMap and LinkedHashMap works internally.
Tell me about Spring boot
What is a EntityManager really?
Basically covered following things. - Spring framework - Database - Lazy loading concepts - Java 8
What types of GC do you know? Draw the chart with main GC performance attributes and place these GC's on the chart.
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