What database behavior of PostgreSQL is observed if no explicit action is specified when deleting a record that is linked to another table via a foreign key?
Junior — Middle
214
Java
14686
265
What components do atomic classes consist of and how are they implemented?
Junior — Middle
214
Have other mechanisms for obtaining document status been considered besides polling (e.g., WebSocket or Server-Sent Events)?
Senior
214
What programming paradigm do classes that implement atomic operations in multithreaded programming follow?
Junior — Middle
214
What is the difference between the equals method and the comparison operators == when checking object equality in Java?
214
How can Maven be configured to work with an internal corporate repository?
Junior — Middle
214
What is the role of the Bean annotation in the Spring framework and how is it used in component creation?
214
Explain the principle of operation of a monitor as a mechanism for ensuring thread synchronization.
213
Which data collection do you use most often and why?
Junior — Middle
213
How to ensure immutability of objects in a class?
Junior — Middle
213
213
Who was responsible for setting goals and objectives in your last project?
Junior — Middle
213
Explain what is meant by a transaction in database management systems.
Junior — Middle
213
Under what conditions should the equals and hashCode methods in Java be consistent?
Junior — Middle
213
Can you explain how the Observer pattern works and its advantages?
Junior — Middle
213
What are the advantages and disadvantages of using the POST method in HTTP requests?
Junior — Middle
213
Can you name two books you read in 2023?
Junior — Middle
213
Denormalization: if you put dep_name in employee and remove the department table — how to safely perform this migration in production under load?
Senior
213
What other caching systems do you know besides Redis?
Senior
213
What metrics did you use to evaluate the level of database fill in your last project?
Junior — Middle
213