What transaction isolation levels are available in PostgreSQL?
Senior
156
Java
14627
265
Why microservices? Why is it better to go for microservices?
Middle
155
Have you had to use classes from java.util.concurrent?
Senior
155
Have you had to optimize database operations or queries?
Senior
155
What types of transaction isolation are available in Transaction Manager?
Senior
155
Heard about Transactional Outbox? Why is it needed, what problem does it solve?
Senior
154
Tell me about yourself, what have you been doing in the last 2-3 years?
Senior
153
Name three examples of terminal operations in the Stream API
Senior
152
What levels of transaction isolation exist and under which is dirty read possible?
Senior
152
When exactly during the execution of a method annotated with @Transactional in Spring is a proxy object created?
Junior — Middle
151
Why is the heap divided into different areas (young/old generation)?
Senior
151
What problems can be encountered in a multithreaded environment?
Senior
151
What other types of indexes do you know besides B-tree?
Senior
150
What reactive programming libraries have you worked with?
Senior
150
How was Kafka configured to handle a large stream of events? One topic with partitions or many topics?
Senior
150
How to scale message processing on the Kafka consumer side; what is a partition and how are messages distributed across partitions?
Middle+
149
What problems can using HashMap lead to? Can HashMap cause memory leaks?
Middle
149
Has there been experience in writing technical documentation, instructions, guides, runbooks?
Senior
149
Name the delivery guarantees in Kafka and what they mean?
Senior
148
When are AOP proxies created in Spring?
Senior
147