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Home>IT Tests>Questions>Symfony 6

28 interview questions on Symfony 6for developers (2026)

Test your technical skills before an interview of Symfony 6 with 28 corrected questions. Beginner, Intermediate or Expert level.

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28 questions
Easy
9 votes2062 runs
1 comment

What does the 'auto' password hasher do in Symfony?

Back-end developer
hashing
password
smaine milianniat Feb 16, 2022
Medium
8 votes2154 runs2 comments

Events listeners are easier to reuse because the knowledge of the events is kept in the class rather than in the service definition.

Back-end developer
symfony
events
smaine milianniat Feb 16, 2022
Medium
8 votes1504 runs
2 comments

How to use a constant in Twig?

Back-end developer
twig
constants
Sam V.at Apr 27, 2023
Easy
8 votes971 runs0 comment

What do the `persist` and `flush` methods of the Doctrine `EntityManager` do when called successively on a new entity?

Back-end developer
Jérômeat Feb 29, 2024
Medium
6 votes1885 runs
2 comments

List the directories to which you must give write permissions on your web server.

Back-end developer
directories
permissions
Anonymous authorat May 16, 2022
Medium
5 votes2123 runs
2 comments

List the security providers that don't exist in Symfony

Back-end developer
symfony
security
smaine milianniat Feb 16, 2022
Medium
5 votes2000 runs1 comment

How to make a Symfony voter faster

Back-end developer
symfony
voter
cache
smaine milianniat Feb 16, 2022
Medium
5 votes1992 runs
2 comments

The class Foo exists is registered as a service only in the "dev" and "test" environment

Back-end developer
symfony
environment
smaine milianniat Feb 16, 2022
Easy
5 votes1446 runs
3 comments

Extending the class `Symfony\Bundle\FrameworkBundle\Controller\AbstractController;` allows my controller to be declared as a service

Back-end developer
symfony
controller
smaine milianniat Feb 16, 2022
Easy
4 votes2017 runs1 comment

Which method does not exist in the class`Symfony\Component\HttpKernel\Event\KernelEvent;`?

Back-end developer
symfony
event
smaine milianniat Feb 16, 2022
Easy
4 votes1948 runs
1 comment

Enable a bundle by environment in Symfony

Back-end developer
bundles
environment
smaine milianniat Feb 16, 2022
Hard
4 votes1485 runs
3 comments

How to use URLs in a functional test in Symfony

Back-end developer
symfony
functional test
Thomas Cochardat Sep 5, 2023
Hard
3 votes2052 runs2 comments

Which methods do not exist in the following class?

Back-end developer
symfony
controller
smaine milianniat Jul 19, 2024
Easy
3 votes1303 runs
1 comment

How to make a HTTP request in Symfony

Back-end developer
HTTP request
Symfony
Anonymous authorat Oct 24, 2023
Hard
2 votes1961 runs
2 comments

Which kernel event does not exist in Symfony?

Back-end developer
symfony
kernel
smaine milianniat Feb 16, 2022
Medium
2 votes1826 runs
1 comment

Lint the container to check that the arguments injected into services match their type declarations.

Back-end developer
symfony
container
smaine milianniat Feb 16, 2022
Medium
2 votes651 runs
1 comment

Check if an article has errors in Symfony

Back-end developer
symfony
validation
Mounirat Nov 8, 2024
Medium
1 vote354 runs0 comment

What is the role of the Symfony\Contracts\Service\Attribute\Required attribute in Symfony?

Back-end developer
attributes
services
Tanguyat Apr 17, 2025
Hard
1 vote116 runs0 comment

How many events are used for the request-response lifecycle (when a request is handled and a response returned) by the Kernel ?

Back-end developer
Thomas Cochardat Jan 6, 2026
Medium
0 vote1732 runs
2 comments

Find the intruder in the following code.

Back-end developer
symfony
console
smaine milianniat Feb 16, 2022