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45 interview questionsfor developers (2024)

Test your developer skills before an interview with 45 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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45 questions
Easy
7 votes793 runs2 comments

What is the size of a long long in C++?

IT Architect
c++
memory
Vincent Cotroat Nov 3, 2023
Easy
3 votes263 runs0 comment

Find the sum of all even numbers in an array in C

IT Architect
array
for loop
Vincent Cotroat Mar 23, 2023
Medium
3 votes215 runs0 comment

Undefined behavior.

IT Architect
memory
pointers
Abha Agrawaat Jan 2, 2024
Easy
3 votes149 runs0 comment

Write a C program that calculates the average of two notes.

IT Architect
constants
assignment
Kahinaat Mar 21, 2022
Easy
2 votes306 runs2 comments

Include a .h library in C

IT Architect
header files
libraries
Kahinaat Jan 2, 2024
Medium
2 votes279 runs
2 comments

Write a C program to calculate the total number of sweets.

IT Architect
printf
error
Kahinaat Mar 21, 2022
Medium
1 vote311 runs1 comment

What does the following code refer to: C:\ProgramFiles\QtCreator\text.txt ?

IT Architect
strings
file
Kahinaat Dec 13, 2023
Easy
1 vote294 runs0 comment

Write a C program that prints the number of years a child needs to grow to be able to ride a roller coaster.

IT Architect
loops
variables
Kahinaat Apr 6, 2022
Easy
1 vote266 runs0 comment

Write a C function to swap two integers.

IT Architect
pointers
functions
Vincent Cotroat Mar 21, 2023
Medium
1 vote26 runs0 comment

What can be problematic in this code ?

IT Architect
c
functions
Kahinaat Apr 6, 2022
Easy
0 vote338 runs0 comment

What does the following block of statements do?

IT Architect
preprocessor
include
Kahinaat Apr 6, 2022
Medium
0 vote335 runs1 comment

Write a C program that prints the number of bottles of soda you need to bring to a party.

IT Architect
variables
arithmetic
Kahinaat Jan 2, 2024
Easy
0 vote321 runs0 comment

What is a file .o?

IT Architect
object file
compilation
Kahinaat Sep 19, 2022
Easy
0 vote312 runs1 comment

How is the variable 'p' initialized?

IT Architect
pointers
memory
Kahinaat Jan 2, 2024
Easy
0 vote309 runs
2 comments

What can we say about the variable a?

IT Architect
variables
scope
Kahinaat Apr 6, 2022
Easy
0 vote303 runs0 comment

What type is the variable 'p'?

IT Architect
pointers
Kahinaat Mar 21, 2022
Easy
0 vote301 runs0 comment

How do you recognize preprocessor directives in C?

IT Architect
preprocessor
directives
Kahinaat Mar 21, 2022
Easy
0 vote289 runs0 comment

What type is the variable returned by the following function?

IT Architect
functions
void
Kahinaat Apr 6, 2022
Medium
0 vote219 runs0 comment

What are preprocessor directives for?

IT Architect
preprocessor
directives
Kahinaat Mar 21, 2022
Medium
0 vote169 runs0 comment

Find the correct value to replace the question mark in the following instruction if the word to stocke is 'Hello' (the word is not retrieved by keyboard input)

IT Architect
arrays
strings
Kahinaat Mar 21, 2022