Site Reliability Engineer Interview Questions
Practice 16 real interview questions for Site Reliability Engineer roles. From companies including Bytedance, Meta, Coreweave, Shein, Waymo. Covers Coding & Algorithms, Software Engineering Fundamentals, Behavioral & Leadership, System Design.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Troubleshoot a production server outage
You are the on-call engineer responsible for a production server for the next several days. Discuss how you would approach the following: - How would ...
Implement Sorted Search and Array Updates
Implement the following independent array functions. Part 1: Search a sorted array Given a sorted array of integers nums in nondecreasing order and an...
Design Batch Reboots for Machines
Design a production system that can safely batch reboot N machines in a fleet. Context: You operate a large fleet of machines used for production work...
Query Machines and Mark Them Offline
You are given access to a local HTTP server that simulates a production machine-management service. Write a program that queries the service, identifi...
Troubleshoot a Midnight Web Server Outage
You are on call for a Linux-based web application that lets customers submit orders and receive confirmations. In the middle of the night, you receive...
Explain Core SRE Practices
In a Site Reliability Engineer interview, explain the core principles and daily practices of SRE. Discuss topics such as service-level indicators and ...
Describe an On-Call Incident
Describe a real on-call incident you handled as part of site reliability or production support. Explain how the problem was detected, what alerts or m...
Determine Complete Interval Coverage
You need to process a stream of real-valued points on a one-dimensional target segment from 0 to 50. Each time a point x arrives, it contaminates the ...
How to triage slow service alerts
A production alert indicates that a web service is experiencing high latency or slow responses. As an SRE, describe how you would triage, investigate,...
Place Non-Attacking Queens
Given an integer n, return all valid configurations for placing n queens on an n x n chessboard so that no two queens attack each other. A queen attac...
Validate abbreviations and brackets
The coding round included two short implementation problems: 1. Abbreviation validation Given a lowercase word word and a string abbr, determine wheth...
How would you troubleshoot Linux services?
You are acting as an SRE responsible for Linux-based services in production. Describe how you would handle the following situations: 1. A server repor...
Find Maximum Chain Activations
You are given n devices, where each device is represented as [x, y, r]. Device i is located at coordinates (x, y) and can directly activate device j i...
Determine whether squares can fit
You are given an m x n rectangular grid and an array squares, where each value represents the side length of a square that must be cut from the origin...
Generate combinations and permutations
Given two integers n and k, where 1 <= k <= n, write code for two related tasks using the numbers 1 through n: 1. Generate all unique combinations of ...
Implement a Streaming VMStat Alert
Write a command-line program that reads a continuous stream of vmstat-style output from standard input and raises an alert based on a sliding time win...