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113 interview questionsfor developers (2025)

Test your developer skills before an interview with 113 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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113 questions
Hard
9 votes1034 runs0 comment

What is special about quick sort?

IT Architect
sorting
algorithm
Kahinaat Sep 19, 2022
Easy
9 votes952 runs0 comment

What is recursion?

IT Architect
recursion
Kahinaat Sep 19, 2022
Easy
8 votes871 runs0 comment

What type of structure are the results of a recursive function stored in?

IT Architect
recursion
stack
Kahinaat Sep 19, 2022
Hard
6 votes846 runs0 comment

What does the While loop do?

IT Architect
array
loop
Adrienat Sep 5, 2022
Hard
5 votes577 runs0 comment

In 2016, Linkedin had a large data breach and leaked 168 millions of users data including hashed password. What was the protections of those password ?

IT Architect
hashing
security
Dragon parfaitat Sep 19, 2022
Medium
4 votes799 runs0 comment

What about the merge sort method?

IT Architect
sorting
algorithm
Kahinaat Sep 19, 2022
Easy
4 votes491 runs0 comment

What is the most used back-end language for websites?

IT Architect
back-end
language
Vincent Cotroat Feb 10, 2023
Easy
4 votes462 runs0 comment

What is the "Metaverse" imagined by "Mark Zuckerberg"?

IT Architect
metaverse
virtual
Vincent Cotroat Sep 19, 2022
Medium
3 votes515 runs0 comment

Write a Rust function that returns the first 10 prime numbers.

IT Architect
rust
algorithm
Vincent Cotroat Sep 19, 2022
Medium
3 votes197 runs0 comment

What term refers to the principle that a computer program should be divided into independent modules?

IT Architect
modules
programming
Damienat Sep 5, 2023
Medium
2 votes843 runs0 comment

What is the complexity of this algorithm?

IT Architect
sorting
algorithm
Kahinaat Sep 19, 2022
Medium
2 votes700 runs0 comment

Given an array of 17 elements sorted in ascending order, what is the cost of accessing the element with index 10?

IT Architect
array
sorting
Kahinaat Sep 19, 2022
Medium
2 votes690 runs
1 comment

How are customer requests handled on an online platform for ordering pizzas for delivery?

IT Architect
queues
FIFO
Kahinaat Sep 19, 2022
Medium
2 votes687 runs0 comment

What do you call a structure whose data are nodes and linked together by oriented arcs?

IT Architect
data structures
graph
Kahinaat Sep 19, 2022
Medium
2 votes674 runs0 comment

What is the name of the type of sort performed by the following code?

IT Architect
array
sort
Kahinaat Sep 19, 2022
Expert
2 votes552 runs0 comment

Which of the following service have leaked millions of badly hashed data ?

IT Architect
hashing
security
Dragon parfaitat Sep 19, 2022
Expert
2 votes520 runs
2 comments

Write a Java program that throws an exception.

IT Architect
exceptions
Vincent Cotroat Sep 19, 2022
Hard
2 votes480 runs1 comment

Is the following a valid JavaScript expression? `undefined`

IT Architect
boolean
logic
Vincent Cotroat Sep 19, 2022
Easy
2 votes215 runs1 comment

The IT transition to the year 2000 has given rise to many concerns! Why ?

IT Architect
date
computer
Vincent Cotroat Sep 19, 2022
Easy
2 votes214 runs0 comment

What software development method emphasizes short iterative cycles, close collaboration with clients, and frequent adjustments based on obtained feedback?

IT Architect
software development
method
Damienat Sep 5, 2023