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1764 interview questionsfor IT Architect (2026)

Test your technical skills before an interview of IT Architect with 1764 corrected questions. Beginner, Intermediate or Expert level.

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1764 questions
Medium
118 votes4533 runs
6 comments

Understanding the differences between `map()` and `forEach()` methods in JavaScript

Web developer
Vincent Cotroat Jan 18, 2024
Medium
50 votes4162 runs4 comments

Write a JavaScript function that fetches data from an API and logs it to the console.

Web developer
promises
async
Vincent Cotroat Mar 28, 2023
Easy
42 votes2210 runs1 comment

Write a Python function that returns the factorial of a number.

Back-end developer
recursion
Vincent Cotroat Mar 28, 2023
Easy
39 votes2262 runs1 comment

Explain the difference between the `include` and `require` functions in PHP.

Back-end developer
functions
errors
Vincent Cotroat Mar 24, 2023
Easy
37 votes3238 runs
13 comments

Write a Java program that prints 'welovedev'.

Full stack developer
strings
variables
Pierreat Sep 19, 2022
Easy
32 votes4251 runs
2 comments

Fix the following Javascript loop:

Web developer
loops
conditions
Anonymous authorat Apr 27, 2023
Hard
27 votes2581 runs
1 comment

Write a Python function that prints the elements of a list.

Back-end developer
list
for loop
Anonymous authorat Mar 28, 2022
Easy
24 votes925 runs1 comment

What is the purpose of the Laravel Sanctum tool?

Web developer
laravel
authentication
Damienat Sep 6, 2023
Hard
17 votes3600 runs
1 comment

How many times is the condition `(a++ < 15)` evaluated in the following code? ```java int a = 3; while (a++ < 15) { if ((a++ % 5) == 0) break; } ```

Back-end developer
loops
control flow
Thomas De verdièreat Dec 16, 2021
Medium
17 votes2970 runs2 comments

A bean with a `session` scope is injected into a bean with a` singleton` scope. What happens when the application starts?

Back-end developer
spring
scope
Anonymous authorat Dec 21, 2021
Medium
17 votes2927 runs0 comment

Explain the prototype scope in Spring

Back-end developer
spring
bean
Anonymous authorat Dec 21, 2021
Easy
16 votes3737 runs1 comment

What is the minimum PHP version for Symfony 5?

Back-end developer
php
symfony
Smaïne Millaniat Dec 3, 2021
Easy
16 votes3134 runs
2 comments

How should a package be named in Java?

Full stack developer
packages
java
Pierreat Sep 19, 2022
Medium
15 votes1878 runs
1 comment

What is the difference between an interface and an abstract class in Java?

Full stack developer
EL Mostafa Fadiliat Feb 13, 2024
Medium
15 votes957 runs0 comment

What is the best practice to apply in your code to improve the performance of your application?

Back-end developer
performance
gzip
Vincent Cotroat Nov 15, 2023
Easy
14 votes4657 runs
5 comments

The certificate variable is not attainable outside the if loop

Web developer
variables
scope
Anonymous authorat Apr 6, 2022
Hard
14 votes3618 runs1 comment

Serialization can be customized with the Externalizable interface

Back-end developer
serialization
interface
Thomas De verdièreat Jan 4, 2022
Hard
14 votes3548 runs0 comment

A monitor in Java

Back-end developer
java
thread
Thomas De verdièreat Jan 4, 2022
Easy
14 votes3500 runs0 comment

What does the final keyword mean in front of a method in Java?

Back-end developer
java
methods
Thomas De verdièreat Jan 4, 2022
Hard
14 votes3440 runs0 comment

How many instance of Integer cannot be freed from memory?

Back-end developer
array
memory
Thomas De verdièreat Dec 16, 2021
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