If I asked you this in an interview:

“What’s the difference between TCP and UDP?”

Would you give a real answer…

Or just say: “connection-oriented vs connectionless”?

Because one gets a follow-up question.

The other ends the interview.

Networking questions are not about definitions.

They’re about: 👉 how you think 👉 what you understand 👉 whether you see the security impact

I broke down 7 questions that instantly expose the gap.

This is what interviewers are actually testing.