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50 interview questions on API RESTfor developers (2026)

Test your technical skills before an interview of API REST with 50 corrected questions. Beginner, Intermediate or Expert level.

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50 questions
Medium
5 votes986 runs1 comment

Which criterion(s) are/ are part(s) specific to a REST API?

IT Architect
API Design
rest
api
Sébastien Chopinat Jan 4, 2022
Easy
4 votes1018 runs0 comment

What kind of HTTP code should I use to indicate a redirect?

IT Architect
API Design
http
redirect
Sébastien Chopinat Jan 4, 2022
Easy
4 votes1002 runs
1 comment

What does CORS mean?

IT Architect
API Design
api
security
Sébastien Chopinat Jan 4, 2022
Easy
3 votes1085 runs0 comment

What does a 2xx HTTP code mean in an API response?

IT Architect
API Design
http
status code
Sébastien Chopinat Jan 4, 2022
Medium
3 votes1031 runs
1 comment

Which of these headers is found in an API response but not in a client request?

IT Architect
API Design
headers
api
Sébastien Chopinat Jan 4, 2022
Easy
3 votes1019 runs
2 comments

What does REST mean?

IT Architect
API Design
api
rest
Sébastien Chopinat Sep 19, 2022
Hard
3 votes979 runs0 comment

Which headers allow you to do CORS?

IT Architect
API Design
headers
cors
Sébastien Chopinat Sep 19, 2022
Medium
3 votes950 runs
1 comment

Which HTTP code indicates the good creation of a resource?

IT Architect
API Design
http
status code
Sébastien Chopinat Jan 4, 2022
Medium
3 votes234 runs0 comment

Which of the following statements are true about RESTful APIs?

IT Architect
API Design
rest
stateless
Dragon parfaitat Jan 4, 2022
Easy
2 votes1001 runs0 comment

Which of these is not a valid request header?

IT Architect
API Design
headers
Sébastien Chopinat Jan 4, 2022
Easy
2 votes1001 runs1 comment

What does CRUD mean?

IT Architect
API Design
api
crud
Sébastien Chopinat Jan 4, 2022
Easy
2 votes987 runs0 comment

Design an API endpoint to retrieve the list of comments for book 34.

IT Architect
API Design
uri
rest
Sébastien Chopinat Jan 4, 2022
Easy
2 votes981 runs0 comment

Which of these HTTP codes indicates an internal server error?

IT Architect
API Design
http
status code
Sébastien Chopinat Jan 4, 2022
Easy
1 vote1011 runs0 comment

What is the method used to delete a resource in RESTful API?

IT Architect
API Design
http
methods
Sébastien Chopinat Jan 4, 2022
Medium
1 vote1007 runs1 comment

Which HTTP method allows you to add a new application to the collection?

IT Architect
API Design
api
rest
Sébastien Chopinat Jan 4, 2022
Easy
1 vote1007 runs
1 comment

Which part of a REST API response indicates the status of a response?

IT Architect
API Design
http
rest
Sébastien Chopinat Jan 4, 2022
Easy
1 vote1005 runs0 comment

How to specify that the body of an API response is in JSON?

IT Architect
API Design
headers
json
Dragon parfaitat Jan 4, 2022
Medium
1 vote1005 runs0 comment

How to delete a book with id 42 in an API

IT Architect
API Design
api
rest
Sébastien Chopinat Jan 4, 2022
Hard
1 vote999 runs0 comment

Which of these headers allow you to control the cache?

IT Architect
API Design
headers
cache
Sébastien Chopinat Jan 4, 2022
Easy
1 vote992 runs0 comment

What is REST communication based on?

IT Architect
API Design
http
rest
Sébastien Chopinat Jan 4, 2022