Google Software Engineering Fundamentals Interview Questions
Practice the exact questions companies are asking right now.
"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."
Deduplicate and Order Batch and Streaming Logs
Deduplicate and Order Batch and Streaming Logs Each log entry is a pair (timestamp, message). Two entries are duplicates when their message strings ar...
Build a Custom CompletableFuture: Async Primitive and Parallel Array Processing
You are asked to design and implement, from scratch, a simplified asynchronous "future / promise" abstraction in the spirit of Java's CompletableFutur...
Find the Most Frequent IP Addresses in a File Too Large for Memory
Design an exact, bounded-memory method for finding the most frequent IP addresses in a file far larger than RAM. Analyze memory and disk-I/O trade-off...
Plan a Safe Repository-Wide Identifier Migration
Plan a Safe Repository-Wide Identifier Migration You have a very large repository whose internal variables and function names use snake case. A conver...
Process Sharded Login Logs
This question evaluates understanding of distributed systems, stream processing, and reliable data engineering concepts related to ingestion, ordering...
Design a multi-timer using single underlying timer
You are given a Timer class that has access to a single underlying system timer API that can only keep one active timer at a time. Underlying single-t...
Design an ads retrieval service using a heap
This question evaluates understanding of priority queues/heaps, object-oriented API design, and algorithmic techniques for maintaining dynamic priorit...
Design a waitlist manager
This question evaluates object-oriented design and data-structure competency—modeling a FIFO waitlist API, managing unique party identifiers and edge ...
Design an editable sequence with marker
Design a mutable ordered sequence of elements together with a marker that points to one element in the sequence. Support the following operations: - I...
Design a Dormitory Room-Assignment System (OOD)
You are asked to design the object-oriented model for a dormitory room-assignment system. You are given a set of students and a set of rooms. Each roo...
Design a waitlist system with top/bottom K
This question evaluates object-oriented design, data structure selection, and algorithmic complexity reasoning for implementing a waitlist that suppor...
Implement matrix transforms and discuss eigenvalues
This question evaluates understanding of matrix manipulation and numerical linear algebra, including in-place matrix transforms and rotations, sparse ...
Design an object-oriented poker game
This question evaluates object-oriented design and system modeling skills, including abstraction, class responsibilities, object relationships, and do...
Explain what happens when you run ls
In Linux, explain the end-to-end flow of what happens when a user types ls in a shell and presses Enter. Include: - What the shell does - How the exec...
Reason About CPU Microarchitecture and Simulator Design
Reason About CPU Microarchitecture and Simulator Design Answer the following systems questions for a modern out-of-order CPU. State architectural assu...
How to handle huge inputs?
In a coding interview, after solving an in-memory algorithmic problem, the interviewer asks: "What would you do if the input were extremely large?" Gi...
Explain SLI/SLO/SLA and design monitoring
SLI vs SLO vs SLA for a Web API; Error Budgets; Monitoring and Alerting Design Context: You are designing reliability goals and on-call policies for a...