Golang

A signal was received, and immediately 3 groups responded to it simultaneously, but we only need to send one group. How can this be done at the transaction level in the database?

Three mini-questions about Docker: what is Docker, Docker Compose, Docker Image?

What is a reverse proxy and what is typically used?

Can you list the indexes available in PostgreSQL?

What is a reverse proxy and how can it be implemented?

Case question: the service started responding in 3 seconds instead of 100 milliseconds. What will be your actions?

How does a relational database differ from a non-relational one?

Tell about each of the SOLID principles.

What is the difference between Dependency Injection and Dependency Inversion?

Do you remember the CAP theorem?

The service started responding in 3 seconds instead of 100 milliseconds. What would you do first?

//Implement a cache with O(1) access to keys type LRUCache struct {} func (c *LRUCache) Get(key string) string {} func (c *LRUCache) Put(key string, value string) {}

What is a materialized view in ClickHouse?