250 interview questions for Site Reliability Engineer (SRE) (2026)

Easy

40 votes2082 runs1 comment

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

Back-end developer

recursion

Vincent Cotroat Mar 28, 2023

Hard

25 votes2465 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

Medium

12 votes2235 runs0 comment

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

Back-end developer

list

zip

Anonymous authorat Mar 28, 2022

Hard

12 votes1063 runs0 comment

What is special about quick sort?

IT Architect

sorting

algorithm

Anonymous authorat Sep 19, 2022

Easy

12 votes976 runs0 comment

What is recursion?

IT Architect

recursion

Anonymous authorat Sep 19, 2022

Easy

11 votes2204 runs0 comment

What type is `function_a` in the following code ?

Back-end developer

functions

decorators

Anonymous authorat Mar 28, 2022

Medium

10 votes2503 runs0 comment

Start a HTTP server from the CLI with python

Back-end developer

cli

http

Anonymous authorat Jan 23, 2023

Hard

8 votes2284 runs

2 comments

Why is the output of the following code undefined? ``` def f(n): return n + 1 f(n) ```

Back-end developer

python

scope

Antoine Brennerat Dec 2, 2021

Expert

8 votes2077 runs0 comment

Find the word 'lazy' in a sentence using Python

Back-end developer

regex

python

Anonymous authorat Mar 28, 2022

Easy

8 votes894 runs0 comment

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

IT Architect

recursion

stack

Anonymous authorat Sep 19, 2022

Hard

7 votes1149 runs1 comment

How to create a snapshot of a logical volume in Linux

DevOps

logical volume

snapshot

Kevin Lefevreat Nov 27, 2021

Easy

7 votes1115 runs0 comment

List running processes.

DevOps

linux

processes

Kevin Lefevreat Sep 19, 2022

Hard

7 votes1099 runs1 comment

Configure the /etc/resolv.conf file to use the following nameservers: 10.1.1.1, 10.2.2.2, 10.3.3.3.

DevOps

linux

resolver

Kevin Lefevreat Jan 2, 2024

Hard

7 votes872 runs0 comment

What does the While loop do?

IT Architect

array

loop

Adrienat Sep 5, 2022

Hard

6 votes2282 runs0 comment

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if name == 'main': asyncio.run(main()) ```

Back-end developer

coroutines

event loop

Antoine Brennerat Dec 2, 2021

Hard

6 votes2225 runs0 comment

What is the difference between the `repr()` and `str()` methods in Python?

Back-end developer

methods

python

Anonymous authorat Mar 28, 2022

Medium

6 votes2092 runs0 comment

What do `a^b`, `a|b` and `a-b` respectively represent in Python ?

Back-end developer

sets

union

difference

Anonymous authorat Mar 28, 2022

Hard

5 votes2286 runs

2 comments

Write a Python program to open a file in binary mode and write a string to it.

Back-end developer

python

file

binary

Antoine Brennerat Dec 2, 2021

Hard

5 votes2284 runs0 comment

In Python, what is the output of the following code? `valueA = 10; valueB = 10; valueA is valueB`

Back-end developer

python

boolean

Antoine Brennerat Dec 2, 2021

Hard

5 votes2281 runs0 comment

Create a list of 10 elements in Python

Back-end developer

list

python

Antoine Brennerat Dec 2, 2021

250 interview questionsfor Site Reliability Engineer (SRE) (2026)

Test your technical skills before an interview of Site Reliability Engineer (SRE) with 250 corrected questions. Beginner, Intermediate or Expert level.

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

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

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

What is special about quick sort?

What is recursion?

What type is `function_a` in the following code ?

Start a HTTP server from the CLI with python

Why is the output of the following code undefined? ``` def f(n): return n + 1 f(n) ```

Find the word 'lazy' in a sentence using Python

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

How to create a snapshot of a logical volume in Linux

List running processes.

Configure the /etc/resolv.conf file to use the following nameservers: 10.1.1.1, 10.2.2.2, 10.3.3.3.

What does the While loop do?

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if name == 'main': asyncio.run(main()) ```

What is the difference between the `repr()` and `str()` methods in Python?

What do `a^b`, `a|b` and `a-b` respectively represent in Python ?

Write a Python program to open a file in binary mode and write a string to it.

In Python, what is the output of the following code? `valueA = 10; valueB = 10; valueA is valueB`

Create a list of 10 elements in Python

250 interview questionsfor Site Reliability Engineer (SRE) (2026)

Test your technical skills before an interview of Site Reliability Engineer (SRE) with 250 corrected questions. Beginner, Intermediate or Expert level.

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

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

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

What is special about quick sort?

What is recursion?

What type is `function_a` in the following code ?

Start a HTTP server from the CLI with python

Why is the output of the following code undefined? ``` def f(n): return n + 1 f(n) ```

Find the word 'lazy' in a sentence using Python

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

How to create a snapshot of a logical volume in Linux

List running processes.

Configure the /etc/resolv.conf file to use the following nameservers: 10.1.1.1, 10.2.2.2, 10.3.3.3.

What does the While loop do?

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if __name__ == '__main__': asyncio.run(main()) ```

What is the difference between the `__repr__()` and `__str__()` methods in Python?

What do `a^b`, `a|b` and `a-b` respectively represent in Python ?

Write a Python program to open a file in binary mode and write a string to it.

In Python, what is the output of the following code? `valueA = 10; valueB = 10; valueA is valueB`

Create a list of 10 elements in Python

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if name == 'main': asyncio.run(main()) ```

What is the difference between the `repr()` and `str()` methods in Python?