Why are you considering other options now / why did you leave your previous job?
Senior
226
Java
14621
265
226
What approaches are used for sharding tables/databases? When is each better to use?
Senior
226
What disadvantages can occur when using ArrayList for frequent maximum value searches and rare addition operations?
Junior — Middle
225
What approaches can you use to improve application efficiency when query speed to the database decreases under high traffic?
Middle — Middle+
225
How to ensure data consistency when performing concurrent deposit and withdrawal operations on an account?
Middle — Middle+
225
How is the difficulty of removing an element from a HashMap data structure determined?
Junior — Middle
225
Can the system guarantee consistency and availability simultaneously (CA)?
Senior
225
Have you analyzed or collected logs from servers in a production environment during your last project?
Junior — Middle
225
What is ThreadLocal?
Senior
224
What are the advantages and disadvantages of using classes whose objects cannot be modified after creation?
Junior — Middle
224
Explain how the SELECT FOR UPDATE command works in the context of transaction management and locking in a database.
Junior — Middle
223
Can you explain the working principle of the CountDownLatch class in Java and what it is used for?
Junior — Middle
223
What was the maximum load level observed in your last project?
Junior — Middle
221
How is the difficulty of adding a new element to the HashMap data structure determined?
221
Can you explain the stages of the bean lifecycle in Spring Framework?
Junior — Middle
220
Where in the Spring architecture is the IoC Container component, which manages dependencies, located?
Junior — Middle
220
What steps would you take to diagnose the causes of low database performance?
Junior — Middle
220
Can you explain what CAS means and how it is used in programming?
Junior — Middle
219
How is the efficiency of key-based search in a HashMap data structure evaluated?
Junior — Middle
219