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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

Product changes to bring YouTube viewers back more times each week

You are a product manager at YouTube. Your goal is to get people to come back to YouTube more often, where frequency is measured as the average number...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
5 people solved
Dec 20, 2024
Meta logo
Meta
Easy
Software Engineer

Implement list cloning and k-frequency finder

You are given two separate coding tasks. --- Problem 1: Deep copy a linked list with extra pointers You are given the head of a singly linked list. Ea...

Coding & AlgorithmsLinked ListsArrays & Strings
5
0
100 people solved
Nov 27, 2025
Amazon logo
Amazon
Easy
Software EngineerIntern

Clarify internship availability and conversion

Software Engineering Internship Availability and Conversion Context: During a technical screen for a Software Engineer internship, the interviewer nee...

Behavioral & LeadershipMotivation & Fit
15
0
113 people solved
Sep 6, 2025
Meta logo
Meta
Easy
Data Scientist Locked

Compute CTR for peak vs non-peak hours

This question evaluates a candidate's ability to compute time-based click-through rate metrics using SQL and data manipulation techniques, including j...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
11
0
75 people solved
Feb 16, 2026
Microsoft logo
Microsoft
Easy
Data Scientist Locked

Explain SHAP and build an ML project

This question evaluates understanding of model explainability using SHAP and the competency to design and operationalize an end-to-end machine learnin...

Machine LearningModel InterpretabilityML System Design
10
0
110 people solved
Feb 9, 2026
A
Art Advisors
Medium
Software Engineer Locked

Solve common array/graph interview problems

This multi-part question evaluates proficiency in array and matrix manipulation, graph traversal and shortest-path reasoning for word transformations,...

Coding & Algorithms
2
0
42 people solved
Jan 12, 2026
Google logo
Google
Medium
Product Manager

Rethinking the Bookshelf for Senior Citizens: A Physical Product Design Exercise

Come up with a bookshelf meant for older people to use. Explain exactly who you are designing for, which problems the design solves, and which concept...

Product Design & StrategyProduct Sense
0
0
5 people solved
Aug 28, 2024
Affirm logo
Affirm
Medium
Product Manager

Logistics Product Design: Plan Shipment Notifications by Audience, Trigger and Channel

You are the product manager responsible for notifications at a logistics company. Explain how you would plan and roll them out: who should receive not...

Product Design & StrategyProduct SenseRequirements & Launch Execution
0
0
8 people solved
Sep 7, 2024
Google logo
Google
Medium
Software Engineer

Handle joining overworked low-WLB team

Scenario You have just joined a new engineering team. You quickly notice that: - Every team member appears very busy and often works long hours. - Wor...

Behavioral & Leadership
3
0
63 people solved
Nov 24, 2025
Meta logo
Meta
Medium
Data Scientist

Label new vs old users over time in SQL

Define users as “new” during the first 30 days inclusive after their signup_date, and “old” thereafter. Produce per-user, per-day labels over a window...

Data Manipulation (SQL/Python)
2
1
23 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Find longest segment with dominant ends

Question Given an integer array nums, find and return the length of the longest contiguous subarray such that the first and last elements of the subar...

Coding & Algorithms
8
0
67 people solved
Aug 4, 2025
Expedia logo
Expedia
Hard
Data Scientist

Choose KPIs and prove impact with experiments

Expedia Search: Profit-Focused Ranking Launch (Onsite) Context You’re on the Search team launching a new hotel-ranking model for enterprise clients wh...

Analytics & Experimentation
7
0
82 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Conceiving the Post-Smartphone Product: A Five-to-Seven-Year Product Vision

You are a product manager asked to design a product that takes over the role the smartphone plays in people's lives within the next five to seven year...

Product Design & StrategyProduct SenseProduct Strategy
0
0
4 people solved
Feb 24, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Find K most frequent elements

This question evaluates a candidate's ability to implement efficient frequency counting and selection logic, demonstrating understanding of data struc...

Coding & Algorithms
7
0
82 people solved
Jan 15, 2026
Uber logo
Uber
Medium
Product Manager

Estimate Annual Passenger Journeys on London's Tube Network

How would you work out how many trips people take on the London Underground, the city's subway network, over one year? You have no data in the room, s...

Product / Decision MakingEstimation & Market Sizing
0
0
10 people solved
Dec 22, 2024
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Find maximum collinear points

This question evaluates understanding of planar geometry and algorithmic reasoning for identifying collinearity, including handling duplicate points a...

Coding & AlgorithmsMath & Number Theory
7
0
123 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Product Manager

Diagnose a 20% Session-Length Decline After a Facebook Feed Ranking Launch

Meta has rolled out a new ranking algorithm for the Facebook News Feed. Since the launch, average session duration has fallen by 20 percent, and the d...

Analytics & ExperimentationMetric DiagnosticsLaunch Evaluation
0
0
4 people solved
Feb 6, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Compute break-even and simulate diaper inventory

Compute break-even volume and weekly profit for a weekly cloth-diaper delivery service, then simulate clean-diaper inventory from a 70,000 starting st...

Statistics & MathBusiness Case AnalysisOperations & Capacity
5
0
66 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Easy
Data Scientist Locked

How would you test a bike delivery option?

This question evaluates experimental design, causal inference, metrics definition, and marketplace analytics competencies in the context of launching ...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
14
0
176 people solved
Feb 12, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design consistent hashing with a sorted map

Design consistent hashing with a sorted map Consistent Hashing with a Sorted Map (Virtual Nodes) Context You are building a client-side library to map...

System DesignPartitioning & Consistent Hashing
25
0
236 people solved
Aug 7, 2025
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