Software Engineer Software Engineering Fundamentals Interview Questions
Practice 284 real Software Engineering Fundamentals interview questions for Software Engineer roles. From companies including Amazon, Bitkernel, Apple, Google, Uber.
"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."
Identify incorrect HTTP status code description
Which of the following descriptions about HTTP status codes is incorrect? Options: - A. 100 means the client should continue sending the request. - B....
Explain Kafka Reliability and Offset Recovery
You are using Kafka to process events in a distributed system. Explain the following: 1. How do partitions affect ordering, parallelism, and scalabili...
Review a JavaScript flatten PR
Live PR Review: JavaScript flatten using recursion You are reviewing a pull request that introduces a flatten utility. Intended behavior Implement fla...
Discuss mutexes, memory alignment, polymorphism, idempotency
In this interview round, you are asked several conceptual software-engineering questions. Answer all parts clearly and concisely, using examples. --- ...
Find minimum two’s-complement value with three ones
An 8-bit signed integer uses two's complement representation and has exactly three 1 bits and five 0 bits. What is the smallest (most negative) value ...
Count calls in recursive function evaluation
Consider the following recursive function in C-like pseudocode: `c int x(int n) { if (n <= 3) return 1; else return x(n - 2) + x(n - 4) + 1; }...
Order SQL query logical processing steps
Consider a SQL query written in SQL-92 style: `sql SELECT foo, COUNT(foo) FROM pokes WHERE foo > 10 GROUP BY foo HAVING COUNT(foo) > 1 ORDER BY foo; `...
Trace binary search indices in 18-element array
An ordered list of 18 elements is stored in a one-dimensional array A[1..18] (1-based indexing). You perform standard binary search for the element at...
Count binary search steps for specific keys
You have the sorted array: [22, 34, 55, 77, 89, 93, 99, 102, 120, 140] Using standard binary search with low and high indices and mid = floor((low + h...
Detect impossible binary search comparison sequence
Consider binary search on a sorted array of numeric keys. The following options list possible sequences of key values that the algorithm might compare...
Design an encrypted key-value store with login
Prompt Design a small key–value store that supports user login and ensures values are encrypted at rest using a user-provided password. You may assume...
Explain Java concurrency and fix i++ race
Java 1. Java - ThreadRunnable/Callable - Java Memory Model - volatilesynchronizedLockAtomic* 2. i++ “/lost update” 3. - i++ - 4...
Demonstrate software engineering fundamentals
Demonstrate software engineering fundamentals Software Engineering Fundamentals: Git, Docker, Python Environments, and C++ Concepts Context: You are i...
Answer core Python, CS, DB, and testing questions
Fundamentals (Python / CS / DB / OS / Web / Testing) Answer the following interview prompts. Keep answers precise, with examples and tradeoffs. A) Tes...
Explain CAP, indexing, locks, and logs
You are interviewing for a general software engineering role. Answer the following conceptual questions: 1. What does the CAP theorem state in distrib...
Explain C++ memory, types, and concurrency fundamentals
Explain C++ memory, types, and concurrency fundamentals Answer the following C++ / systems fundamentals questions: 1) C++ class vs struct - What are t...
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...
Describe Linux and SQL experience
You are being assessed on basic tooling skills as an engineer. Answer: 1. Linux/Unix commands: list commands you are comfortable with and briefly expl...
Explain Java follow-ups after solving coding problem
After you implement an algorithmic solution in Java, the interviewers ask follow-up questions and request modifications. Answer/discuss (and, where re...
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...