Which HTTP status code indicates a client error?

What is the default port for HTTPS

Which of these is the transport layer protocol?

Which file contains Maven project configuration?

What does DTO stand for?

In the URL http://www.test.com:8080/employees/5?tag=boring, what is the query part?

Which Spring Boot annotation is used to handle POST requests?

In Spring Boot, which annotation is used to extract query parameters?

According to REST rules, which of the following is the correct way to reference a single user with ID 123?

What is the correct HTTP status code to return when a new resource is created via POST request?