Interview Q&A / Computer Networks
Computer Networks interview questions
What happens when you open a website, TCP vs UDP, DNS and HTTP.
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- What is the difference between cookies, sessions and tokens like JWT?
A cookie is just a small piece of data the browser stores and sends back automatically. A session keeps login state on the server and puts only a random session ID in a cookie. A JWT is a signed token that carries the user's data itself, so the server can verify it without a lookup, but it is harder to revoke before it expires.
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