Golang

How can you control the number of active threads in an application?

Junior — Middle

Касперский

What happens if you try to close a channel that is already closed?

Junior — Middle

Avito

Does kill always terminate the process?

Middle

OZON

What are the advantages and disadvantages of applying Reservation without using pointers?

Can you provide an example of a scenario where a buffered channel is used for data transfer?

Can you explain what is meant by the term 'variable capture' in programming?

What mechanisms and tools are used for creating database backups?

What types of SQL queries can you create and use in practice?

Junior — Middle

Альфа-Банк

How is data replication carried out in distributed systems?

How is mutual exclusion implemented using Mutex in Go language?

Junior — Middle

Wildberries

X5 group

Купер

What does using data protection mechanisms when forming SQL queries mean and what are their advantages?

What is the main function of Pgxpool and why is it used in databases?

Can you list different types of collisions and explain their features?

How to implement data creation and transfer through a channel in your system?

Can you explain what is meant by the concept of consistency in data storage systems?

Junior — Middle

Газпром

Газпромбанк

Is persistent connection supported in the HTTP/1.1 protocol?

Junior — Middle

СБЕР дейвайсы

What is the difference between a buffered channel and an unbuffered channel in the context of inter-goroutine communication?

Junior — Middle

Эрливидео

Wildberries

Could you explain the concept of denormalization in databases and its main advantages?

What are the advantages and disadvantages of using gRPC compared to other remote procedure call protocols?

Can you give examples of situations where type assertion is used in programming languages?