How to define request and response?

Question

Wireshark

What does a wireshark request and response look like? What does a request that received a response look like, and a request that did not receive a response.
Can be detailed with pictures to make it clear.

Answer 1

What does a request that received a response look like, and a request that did not receive a response.

Equally!

Answer 2

Everything depends on the
protocol

Answer 3

Requests don't have answers. In wireshark, the request looks like ip.src = <ip компьютера>and the response looks like ip.dst= <ip компьютера>.
To catch both requests and responses, you need to put a filter ip.addr= <ip компьютера>.