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51 interview questionsfor Security Expert (2026)

Test your technical skills before an interview of Security Expert with 51 corrected questions. Beginner, Intermediate or Expert level.

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51 questions
Easy
39 votes2365 runs1 comment

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

Back-end developer
functions
errors
Anonymous authorat Mar 24, 2023
Medium
15 votes3013 runs0 comment

Which of the following statements are true ?

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
12 votes3050 runs
3 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Anonymous authorat Mar 28, 2022
Medium
10 votes3099 runs0 comment

What is the value of the `PHP_FLOAT_MIN` variable?

Back-end developer
constants
float
Anonymous authorat Mar 28, 2022
Medium
10 votes2953 runs
8 comments

Which of the following statements are true ?

Back-end developer
php
arrays
Anonymous authorat Mar 28, 2022
Easy
9 votes3489 runs0 comment

Which of these classes is the most suitable for composing a character string from several elements concatenated to each other?

Back-end developer
string
java
Thomas De verdièreat Jan 4, 2022
Hard
8 votes2884 runs
1 comment

Usage of the global scope in a PHP function.

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Medium
7 votes2958 runs0 comment

What are the risks when running the following code ?

Back-end developer
security
xss
Anonymous authorat Mar 28, 2022
Medium
6 votes2785 runs
1 comment

Usage of the spaceship operator in a PHP loop.

Back-end developer
comparison
operators
Anonymous authorat Mar 28, 2022
Medium
6 votes2593 runs
1 comment

How does Spring match beans?

Back-end developer
spring
beans
Anonymous authorat Dec 21, 2021
Easy
6 votes2163 runs0 comment

What is the `asort()` function for in PHP ?

Back-end developer
arrays
functions
Anonymous authorat Mar 28, 2023
Medium
5 votes2607 runs0 comment

Write a PHP function that adds two numbers and returns an integer.

Back-end developer
functions
types
Anonymous authorat Mar 28, 2022
Easy
5 votes2583 runs0 comment

Using the ternary operator to choose between two strings in PHP.

Back-end developer
ternary operator
strings
Anonymous authorat Mar 28, 2022
Hard
4 votes2768 runs0 comment

What is the `is_long()` function for ?

Back-end developer
functions
integers
Anonymous authorat Mar 28, 2022
Medium
4 votes2657 runs0 comment

Use array_map to get the length of each string in an array in PHP

Back-end developer
arrays
functions
Anonymous authorat Mar 28, 2022
Medium
4 votes1111 runs2 comments

Usage of the null coalescing operator in PHP

Back-end developer
ternary operator
null coalescing operator
Anonymous authorat Mar 28, 2022
Easy
2 votes2628 runs
2 comments

How to use the @Inject annotation in Spring

Back-end developer
spring
annotations
Anonymous authorat Dec 21, 2021
Easy
2 votes2557 runs1 comment

What is the `define()` function for in PHP?

Back-end developer
constants
functions
Anonymous authorat Mar 28, 2022
Medium
2 votes1334 runs0 comment

What can we say about the following code?

Back-end developer
nicolasat Apr 8, 2024
Medium
1 vote1703 runs
5 comments

Which superglobal variables hold the information passed through a HTML form?

Back-end developer
superglobal
variables
html
Anonymous authorat Feb 6, 2024
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