Can you explain the principle of pessimistic locking and how it differs from other locking strategies?
238
Java
14621
265
How do you identify the causes of an OutOfMemoryError in an application?
Junior — Middle
238
Why is it important to close the data stream after extracting information using JPA?
Junior — Middle
236
What techniques and approaches do you use to improve caching efficiency as data volume grows?
Junior — Middle
235
Which specific fields in a database should be indexed to speed up the execution of a certain query?
Junior — Middle
235
What can be seen in pg_stat_statements? What is stored there regarding queries?
Senior
234
What do you expect from the internship period and what goals do you want to achieve?
Intern — Junior
232
How is the configuration and registration of a Bean carried out within the Spring Framework?
Junior — Middle
231
What message brokers have you worked with?
Middle+
230
How is automatic memory cleanup implemented in Java?
Junior — Middle
230
Are there operations that are excluded from execution within transactions?
Junior — Middle
229
What is the purpose of weak references in programming?
Junior — Middle
229
What does the occurrence of a ConcurrentModificationException in Java mean, and in what situations can it be thrown?
Junior — Middle
228
In which cases is it recommended to use indexing to speed up query performance in a database?
Junior — Middle
228
What mechanisms for reliable message delivery are implemented in Kafka?
Junior — Middle
227
Can you describe the main types of operations available in Java's Stream API?
227
What are the technical issues and weaknesses of JVM?
Middle+
227
226
Why are you considering other options now / why did you leave your previous job?
Senior
226
What is the difference between the `==` operator and the `equals()` method when comparing objects in Java?
226