REST Resources and URI Design – Java Backend Interview

See full structured answer at https://interviewexplainer.com/rest-api-interview-questions-for-freshers/rest-resources-and-uri-design-java-backend-interview

Statelessness in REST APIs – Java Backend Interview

See full structured answer at https://interviewexplainer.com/rest-api-interview-questions-for-freshers/statelessness-in-rest-apis-java-backend-interview

Implementing REST API in Spring Boot – Java Fresher Guide

See full structured answer at https://interviewexplainer.com/rest-api-interview-questions-for-freshers/implementing-rest-api-in-spring-boot-java-fresher-guide

REST API vs Web Service – Java Backend Interview

See full structured answer at https://interviewexplainer.com/rest-api-interview-questions-for-freshers/rest-api-vs-web-service-java-backend-interview

The Six REST Constraints

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Statelessness and Scalability

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Uniform Interface Sub-Constraints

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REST APIs & Web·Interview Q&A

REST API Fundamentals interview questions

37+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes what is rest, rest constraints, http methods, http status codes, and more.

37questions

8topics

16174difficulty

Open question 1 How to read this module

Suggested path

Read REST API Fundamentals from question 1 to 37

Topics follow a teaching order. Each answer ends with a clear Next question control so you can move forward without hunting the list.

1Start with question 1 — it sets up the rest of the module.
2Use Continue · Next question at the bottom of every page (and the arrows in the sticky bar when you scroll).
3Jump to any topic in the full catalog — every row is numbered in reading order (Q1–Q37).

Open question 1 Jump to Q1 in list Scroll to full catalog

About this page

REST API (fresher level) introduces web APIs. This module is an elevation arc: it opens with what REST is and the constraints (the architectural style), then HTTP methods and status codes (the verbs and responses). JSON and API design basics follow at the mechanics tier, then idempotency (the property interviewers test). It closes with REST vs SOAP — the comparison that explains why REST won.

Reviewed by senior engineers·Updated for 2026·Free · No sign-up required

High-signal REST API Fundamentals questions

Top 5

Full catalog

Every question, in reading order

Topics are ordered for learning. Within each topic, rows are numbered 1–37 globally so you always know where you are. Collapse topics if you want a lighter view — use Expand all when you need the full list again.

Full catalog · reading order

REST API Fundamentals

Numbers 1–37 follow the order we recommend — click any row to open the full answer, or use the sticky Next link at the bottom of each page to go Q1 → Q37.

37 questions·8 topics

All topics expanded

FAQs about REST API Fundamentals interview prep

QHow many REST API Fundamentals interview questions are on this page?

This module bundles 37+ REST API Fundamentals interview questions, grouped by 8 topics. Every answer follows the same structure — one-liner summary, structured deep-dive, common pitfalls, and realistic follow-ups an interviewer might ask.

QIs this REST API Fundamentals content up to date for 2026?

Yes. Every answer is reviewed by senior engineers and updated for current best practices, version-specific APIs, and the scenario questions hiring managers are asking today.

QWhich difficulty level are these REST API Fundamentals questions?

The set spans all three levels — 16 easy, 17 medium, and 4 hard questions. Junior candidates should focus on the conceptual questions; senior candidates should drill the scenario and trade-off questions in every topic group.

QWhich question should I read first?

Start with question 1 in the ordered list below ("What is REST – RESTful API Fundamentals for Java Developers") — it is the recommended entry point. Then use the Next question link at the bottom of each answer page to read straight through to Q37.