IT One

Have you worked with integrations, application development, backend, frontend?

SQL query analysis: how many columns will it output, the maximum number of rows, business meaning.

Entities 'Client', 'Order', 'Product', and 'Payment'. Describe the data structure, relationships between entities, and justify the choice of storage model.

Tell us about your experience in implementing and configuring continuous integration and delivery processes.

Can you give an example of a complete testing scenario from start to finish?

Do you have experience working with the Linux operating system?

How can a new file be created in the Linux operating system?

What steps are necessary to integrate an external Spring Bean into your application?

Can you list different types of exceptions you have encountered in practice?

How many threads does a parallel Stream use in the standard API configuration?

Какое отличие между конструкциями try-catch-finally и try-with-resources при обработке исключений и управления ресурсами?

Can you list the main areas within the JVM and their functions?

Filtering, converting to uppercase, and sorting strings

Calculating the number of rows after table cross-join

Selecting users with products and names starting with 'A'

Selection of employees with total payments exceeding a specified threshold

Determining the output when re-throwing exceptions in nested try-catch-finally blocks

Sorting an array of strings with priority for characters «s» and «k»

Total payout amount for each employee

Basic stack implementation

Determining the first unique number in the array

Update child SubElement only on even counter values

Determining the order of output to the console

Determining the output of console.log in a JavaScript fragment