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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
Amazon logo
Amazon
Medium
Product Manager

Make the Case for an Amazon Product You Admire: Users, Design Choices and Metrics

You are interviewing for a product manager role and are asked to pick your favorite Amazon product and explain why it is your favorite. `hint Argue li...

Product Design & StrategyProduct Sense
0
0
8 people solved
Oct 22, 2025
Hulu logo
Hulu
Medium
Data ScientistSenior+ Locked

Interpret a Streaming Regression Without Overstating Causality

Learn to explain regression coefficients and confidence intervals to a product partner without turning association into causation. Examine confounding...

Analytics & Experimentation
1
0
24 people solved
Jun 7, 2026
Robinhood logo
Robinhood
Medium
Data Scientist

Identify Top Users with Declined Transactions in SQL

Transactions +----------------+---------+--------+----------+---------------------+ | transaction_id | user_id | amount | status | timestamp ...

Data Manipulation (SQL/Python)
5
0
65 people solved
Aug 4, 2025
Intuit logo
Intuit
Easy
Product Analyst

Handle missing and unavailable predictive features

Scenario You are building a model to predict whether a user will successfully file taxes (binary label success) for a TurboTax-like product. One of th...

Machine Learning
6
0
87 people solved
Oct 21, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Winning Stakeholder Buy-In to Get a Key Decision Made

Describe a time when you needed to persuade other people in order to get a decision made. How did you bring them around, and what came of it? `hint Sh...

Behavioral & LeadershipLeadership & InfluenceCommunication & Stakeholders
0
0
5 people solved
Feb 24, 2026
Meta logo
Meta
Medium
Software Engineer

Maximize number with one digit swap

Maximize number with one digit swap Given a non-negative integer n (as an int or string), perform at most one swap of two digits to produce the maximu...

Coding & Algorithms
6
0
71 people solved
Jul 15, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Root-Cause Analysis for Falling Engagement in Microsoft OneDrive

You are a product manager for Microsoft OneDrive, Microsoft's cloud service for storing, syncing and sharing files. The team has noticed that OneDrive...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
7 people solved
Aug 16, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find longest segment with endpoints > interior

Given an integer array nums, find the length of the longest contiguous segment [i..j] (j−i+1 ≥ 2) such that both endpoints are strictly greater than e...

Coding & Algorithms
7
0
61 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Applied Scientist Locked

Explain why CTR rises but CVR unchanged

This question evaluates a candidate's competency in experimental design and statistical analysis, specifically interpreting divergent engagement and o...

Analytics & Experimentation
5
0
73 people solved
Jan 6, 2026
Schneider Electric logo
Schneider Electric
Medium
Software EngineerIntern

Compare JavaScript == and === operators

In JavaScript, what is the difference between the == and === operators? Explain: 1. How each operator compares two values. 2. What type coercion is an...

Software Engineering Fundamentals
4
0
51 people solved
Dec 8, 2025
PayPal logo
PayPal
Medium
Software Engineer

Compare write-back vs write-through caches

Compare write-back and write-through caching policies. Explain how each handles writes, coherence, durability, latency, and bandwidth; discuss typical...

Coding & Algorithms
3
0
75 people solved
Aug 7, 2025
Uber logo
Uber
Medium
Product Manager

Ride-Hailing Safety: Predict Which Trips Are at Risk and Decide How to Intervene

You are a product manager at Uber. Design a system that predicts whether something is likely to go wrong on a ride. Decide what "going wrong" should i...

Machine LearningTrust & SafetyAI Product Management
1
0
14 people solved
May 9, 2025
Roku logo
Roku
Medium
Data Scientist Locked

Explain and quantify bias-variance tradeoff

This question evaluates understanding of the bias–variance tradeoff, the expected test-error decomposition into irreducible noise, bias^2, and varianc...

Machine Learning
7
0
90 people solved
Oct 13, 2025
Airwallex logo
Airwallex
Medium
Data Scientist

How would you test swapping two CTA buttons?

You work on the Airwallex marketing/product landing page. There are two primary CTA buttons: - “See a demo” - “Get started” A proposal suggests swappi...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
5
0
111 people solved
Oct 14, 2025
Meta logo
Meta
Medium
Product Manager

Get More Businesses Boosting Posts Each Month on Facebook and Instagram

You are a product manager at Meta for boosted posts, the feature that lets a business or creator pay to show one of its existing Facebook or Instagram...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
0
0
9 people solved
Jun 28, 2026
Graham Capital logo
Graham Capital
Medium
Software Engineer

Explain project assumptions and validation methods

Assumptions, Validation, and End-to-End Process for an Analytics/Experimentation Project Context: You are describing a recent analytics/experimentatio...

Analytics & Experimentation
5
0
76 people solved
Sep 6, 2025
Bloomberg logo
Bloomberg
Hard
Software Engineer

Describe leading an end-to-end client project

You are in a behavioral interview for a software engineering role. The interviewer asks you to discuss a full‑stack project you led end‑to‑end for a r...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
6
0
98 people solved
Nov 24, 2025
Amazon logo
Amazon
Medium
Software Engineer

Find minimum time for irrecoverable password

A password is a string s of length n. A virus attacks positions in a 1-indexed order given by a permutation attackOrder[1..n]. At second t (1 <= t <= ...

Coding & Algorithms
4
0
56 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Data Scientist

Explain Shell Script for Python Virtual Environment Setup

Explain Shell Script for Python Virtual Environment Setup Scenario Shell script for setting up a Python virtual environment during a tech screen Quest...

Coding & Algorithms
43
0
306 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Write SQL for deliveries analytics

Write SQL for the following analytics tasks. Assume a PostgreSQL-like dialect unless otherwise stated. Treat "today" as 2025-09-01. Schema: - users(us...

Data Manipulation (SQL/Python)
3
0
50 people solved
Oct 13, 2025
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