Hello Guys, I’m a fresher backend dev and I have been preparing for system design interviews but honestly I am kinda lost.

If any senior interviewer can give me tips, please tell me how to prepare in the right way so it doesn’t hurt me in interviews and how to improve my technical articulation. I forget terms in real life also, and I seriously suck at explaining technical things properly.

I have all the roadmaps and topics because of AI and stuff, but still I don’t know how to actually prepare. Should I mug up things or what? There are just too many concepts and I keep getting confused between related things.

For example, I get mixed up between TCP protocol and REST architecture style. Same with HTTP 1.1 vs HTTP 2 differences. I also keep forgetting stuff like SSE vs polling vs HTTP requests vs websocket.

Even in interviews I mess up. One time they asked me if gRPC can run on HTTP 1.1 and if REST can run on HTTP 2. I stupidly answered that gRPC can run on HTTP 1 and REST can’t run on HTTP 2.…