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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
Google logo
Google
Medium
Product Manager

Strategic App Launch in a Month but Dogfood Misses Targets: Ship, Narrow or Delay?

You are the product manager for a new app that the company considers strategically important, and the launch is one month away. Internal dogfooding su...

Product / Decision MakingRequirements & Launch ExecutionPrioritization & Tradeoffs
0
0
7 people solved
Nov 30, 2025
Google logo
Google
Medium
Product Manager

Forecasting a New Feature's Adoption Lift With Pre-Launch Research and Tests

You are a product manager with a new feature on the roadmap. Before it launches, how would you work out the effect it is likely to have on adoption of...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
0
0
6 people solved
Nov 27, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Accessible Multi-Factor Authenticator for Blind and Low-Vision Smartphone Users

You are a product manager asked to design a multi-factor authentication (MFA) app for people with visual impairments. An MFA app provides the second p...

Product Design & StrategyAccessibility & Inclusive DesignAuthentication & Authorization
0
0
8 people solved
Nov 26, 2025
Meta logo
Meta
Medium
Data Scientist

How would you validate a driving simulator’s realism?

You work on autonomous driving evaluation. You have two datasets for the same set of driving scenarios: - Real-world logs collected from vehicles (gro...

Analytics & Experimentation
7
0
56 people solved
Nov 24, 2025
Google logo
Google
Medium
Product Manager

Smartphone product design for users who are deaf or hard of hearing

Design a phone for people who are deaf. Describe which users you would design for, the problems you would solve first, what the phone would do differe...

Product Design & StrategyAccessibility & Inclusive DesignProduct Sense
0
0
6 people solved
Nov 18, 2025
Meta logo
Meta
Easy
Data Scientist Locked

Define hand-waving accuracy and launch decision

This question evaluates a data scientist's ability to define and operationalize detection metrics, design instrumentation and diagnostics, connect mod...

Analytics & Experimentation
4
0
58 people solved
Nov 16, 2025
TikTok logo
TikTok
Medium
Software Engineer

Explain Java ConcurrentHashMap and queues

An interviewer asks you conceptual questions about Java's concurrency primitives. Explain in detail: 1. How Java's ConcurrentHashMap is implemented in...

Software Engineering Fundamentals
4
0
71 people solved
Nov 16, 2025
Google logo
Google
Medium
Product Manager

Choosing Success Metrics and a Primary Measure for Google Photos

You are a product manager on Google Photos, Google's app for backing up, organizing, searching, editing and sharing photos and videos. What metrics wo...

Analytics & ExperimentationMetrics & KPIs
0
0
8 people solved
Nov 14, 2025
Google logo
Google
Medium
Product Manager

Pick a Google Product You Admire and Adapt It for Older Adult Users

Pick the Google product you like most and make the case for it. Then take that same product and improve it for elderly users: decide which older peopl...

Product Design & StrategyAccessibility & Inclusive DesignProduct Design & Improvement
0
0
5 people solved
Nov 11, 2025
Meta logo
Meta
Medium
Product Manager

North-star and supporting metrics for Facebook's business and creator Pages

You are the product manager responsible for Facebook Pages, the public presences that businesses, brands, creators, public figures and organizations r...

Analytics & ExperimentationMetrics & KPIs
0
0
4 people solved
Nov 5, 2025
Google logo
Google
Medium
Product Manager

Product Sense: Children's Meditation App for an Adult In-Person Meditation Studio

Your company teaches meditation to adults through in-person classes at its own locations. It now wants an app that helps children practice meditation....

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Oct 29, 2025
Google logo
Google
Medium
Product Manager

Fermi Estimate: Sizing New York City's Population of Piano Players

Estimate how many pianists there are in New York City. You cannot look anything up: build the estimate from assumptions you state out loud, and explai...

Product / Decision MakingEstimation & Market Sizing
0
0
8 people solved
Oct 27, 2025
TikTok logo
TikTok
Easy
Data Scientist Locked

How would you manage precision/recall for fraud detection?

This question evaluates a candidate's competency in applied machine learning for fraud detection, covering model performance measurement, thresholding...

Machine Learning
5
0
55 people solved
Oct 26, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

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...

Software Engineering Fundamentals
3
0
30 people solved
Oct 24, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

Identify incorrect statement about primary keys

In a relational database, which of the following statements about primary keys is incorrect? Options: - A. Every column that is part of the primary ke...

Software Engineering Fundamentals
2
0
38 people solved
Oct 24, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

Classify concurrency anomaly between two transactions

Two transactions T1 and T2 run concurrently and access the same data item A. Their operations (in order of time) are: 1. T1 reads A = 100. 2. T2 reads...

Software Engineering Fundamentals
2
0
51 people solved
Oct 24, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

Choose unsuitable file structure for random access

When a file system must support efficient random access to records, which of the following physical file structures is not suitable for this scenario?...

Software Engineering Fundamentals
4
0
47 people solved
Oct 24, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

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 ...

Software Engineering Fundamentals
4
0
44 people solved
Oct 24, 2025
Nash AI logo
Nash AI
Medium
Software Engineer Locked

Design real-time delivery tracking with async updates

This question evaluates designing scalable, fault-tolerant real-time delivery tracking systems, focusing on asynchronous event processing, out-of-orde...

System Design
3
0
43 people solved
Oct 21, 2025
Google logo
Google
Medium
Product Manager

Setting a Portfolio-Wide Product Strategy for Meta as Its Product Leader

Imagine you have just become head of product at Meta. What would you do in the role? Explain how you would size up where Meta's products stand today, ...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
7 people solved
Oct 18, 2025
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