You need to integrate two applications located on different servers. Application A registers a user and must send a Registration Message via Email. Application B can send Email. Tell about the methods of integration, protocols, and possible problems of your chosen integration method.
Is it necessary to override GetHashCode and Equals together? Can you override only one of them?
How would you optimize a slow SQL query on a table with millions of records?
What is DI (Dependency Injection) and why is it needed?
What will be output in C# code with nested locks on the same syncObject? Will there be a deadlock and why?
What is gRPC and how does it differ from regular HTTP?
What is ValueTask and when should it be used?
What is the difference between HTTP/1 and HTTP/2?
Why are you currently looking for a job and why did you leave your last position?
Does it make sense to add an index to a boolean field (e.g., IsSent)?
