250 interview questions for Site Reliability Engineer (SRE) (2025)

recursion

Vincent Cotroat Mar 28, 2023

Hard

25 votes2454 runs

1 comment

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

list

for loop

Anonymous authorat Mar 28, 2022

Medium

12 votes2225 runs0 comment

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

list

zip

Anonymous authorat Mar 28, 2022

Hard

12 votes1063 runs0 comment

What is special about quick sort?

sorting

algorithm

Kahinaat Sep 19, 2022

Easy

12 votes976 runs0 comment

What is recursion?

recursion

Kahinaat Sep 19, 2022

Easy

11 votes2194 runs0 comment

What type is `function_a` in the following code ?

functions

decorators

Anonymous authorat Mar 28, 2022

Medium

10 votes2491 runs0 comment

Start a HTTP server from the CLI with python

cli

http

Anonymous authorat Jan 23, 2023

Hard

8 votes2279 runs

2 comments

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

python

scope

Antoine Brennerat Dec 2, 2021

Expert

8 votes2069 runs0 comment

Find the word 'lazy' in a sentence using Python

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?

recursion

stack

Kahinaat Sep 19, 2022

Hard

7 votes1149 runs1 comment

How to create a snapshot of a logical volume in Linux

logical volume

snapshot

Kevin Lefevreat Nov 27, 2021

Easy

7 votes1115 runs0 comment

List running processes.

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.

linux

resolver

Kevin Lefevreat Jan 2, 2024

Hard

7 votes872 runs0 comment

What does the While loop do?

array

loop

Adrienat Sep 5, 2022

Hard

6 votes2277 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()) ```

coroutines

event loop

Antoine Brennerat Dec 2, 2021

Hard

6 votes2216 runs0 comment

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

methods

python

Anonymous authorat Mar 28, 2022

Medium

6 votes2084 runs0 comment

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

sets

union

difference

Anonymous authorat Mar 28, 2022

Hard

5 votes2281 runs

2 comments

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

python

file

binary

Antoine Brennerat Dec 2, 2021

Hard

5 votes2279 runs0 comment

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

python

boolean

Antoine Brennerat Dec 2, 2021

Easy

5 votes1129 runs0 comment

Change file mode bits.