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310 interview questionsfor Cybersecurity Engineer (2024)

Test your technical skills before an interview of Cybersecurity Engineer with 310 corrected questions. Beginner, Intermediate or Expert level.

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310 questions
Easy
29 votes1298 runs1 comment

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

Back-end developer
recursion
Vincent Cotroat Mar 28, 2023
Easy
20 votes2270 runs
7 comments

Write a Java program that prints 'welovedev'.

Full stack developer
strings
variables
Pierreat Sep 19, 2022
Hard
16 votes1659 runs0 comment

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

Back-end developer
list
for loop
Théoat Mar 28, 2022
Hard
13 votes2920 runs0 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
Hard
10 votes2887 runs0 comment

A monitor in Java

Back-end developer
java
thread
Thomas De verdièreat Jan 4, 2022
Hard
9 votes2917 runs1 comment

Serialization can be customized with the Externalizable interface

Back-end developer
serialization
interface
Thomas De verdièreat Jan 4, 2022
Easy
9 votes2202 runs
1 comment

How should a package be named in Java?

Full stack developer
packages
java
Pierreat Sep 19, 2022
Medium
9 votes1506 runs0 comment

Use the zip() function to iterate over two lists in parallel.

Back-end developer
list
zip
Théoat Mar 28, 2022
Medium
9 votes858 runs0 comment

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

Full stack developer
EL Mostafaat Feb 13, 2024
Hard
8 votes3000 runs0 comment

A Customer class has the com.company.model package.

Back-end developer
inheritance
package
Thomas De verdièreat Jan 4, 2022
Easy
8 votes2883 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
8 votes2848 runs0 comment

What "design pattern" makes it possible to offer a means of treating the elements of a tree without worrying about the course?

Back-end developer
design pattern
tree
Thomas De verdièreat Jan 4, 2022
Hard
8 votes2801 runs0 comment

How many instance of Integer cannot be freed from memory?

Back-end developer
array
memory
Thomas De verdièreat Dec 16, 2021
Easy
8 votes1703 runs0 comment

Start a HTTP server from the CLI with python

Back-end developer
cli
http
Théoat Jan 23, 2023
Hard
7 votes2933 runs0 comment

A “synchronized” method

Back-end developer
java
method
Thomas De verdièreat Jan 4, 2022
Easy
7 votes2849 runs0 comment

What is the classpath for?

Back-end developer
java
classpath
Thomas De verdièreat Jan 4, 2022
Easy
7 votes2817 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
Easy
7 votes2144 runs1 comment

How to concatenate two strings of characters in Java?

Full stack developer
strings
concatenation
Pierreat Jan 4, 2022
Hard
6 votes2936 runs2 comments

How to write a portable Java program

Back-end developer
java
native
Thomas De verdièreat Jan 4, 2022
Hard
6 votes2929 runs0 comment

What is the error message when you try to serialize a class that does not implement Serializable?

Back-end developer
java
serialization
Thomas De verdièreat Dec 2, 2021
Cybersecurity Engineer tests