Beginner WebSockets Interview Questions
Starting out with WebSockets? These 14 beginner-friendly WebSockets interview questions cover the fundamentals hiring managers expect from entry-level candidates — with plain-English answers, runnable code and the mistakes that trip people up.
14 WebSockets questions
- 1What happens when a WebSocket connection closes?Beginner
- 2What are WebSocket subprotocols?Beginner
- 3What is a WebSocket frame?Beginner
- 4What is full-duplex communication in WebSockets?Beginner
- 5What is a WebSocket URL (ws:// vs wss://)?Beginner
- 6What are WebSocket events in JavaScript?Beginner
- 7What is the difference between WebSocket and REST API?Beginner
- 8What are the advantages of WebSockets?Beginner
- 9What is the WebSocket handshake process?Beginner
- 10What is WebSocket and how is it different from HTTP?Beginner
- 11WebSockets Interview Question 1 (Free)Beginner
- 12WebSockets Interview Question 4 (Free)Beginner
- 13WebSockets Advanced Interview Question 10Beginner
- 14WebSockets Advanced Interview Question 7Beginner
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Frequently asked questions
How many beginner WebSockets interview questions are there?
This page covers 14 beginner-level WebSockets interview questions, each with a short answer, a deeper explanation, code examples, common mistakes and follow-up questions.
Are these WebSockets questions suitable for beginner interviews?
Yes. Every question is tagged beginner difficulty and chosen to match what interviewers expect at that level, so you can focus your preparation without wading through questions that are too easy or too hard.
How should I practise these WebSockets questions?
Read the short answer first, attempt the question yourself, then expand the detailed explanation and real-world example. Review the common mistakes and follow-up questions to make sure you can handle interviewer probing.