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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
PayPal logo
PayPal
Medium
Product Manager

Amazon Product Strategy: Responding When Walmart Launches in Amazon's Market

You are a product manager at Amazon, and Walmart is launching in the country where you operate. How do you respond? `hint Find the real overlap Before...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
1
0
9 people solved
May 1, 2026
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

Write SQL for rankings, state, and aggregations

This question evaluates a candidate's competency in SQL data manipulation, covering ranking/top-N queries, aggregations and percentage calculations, t...

Data Manipulation (SQL/Python)SQL
14
0
99 people solved
Feb 21, 2026
Netflix logo
Netflix
Hard
Data Engineer Locked

Implement phrase search and JSON path

This question evaluates the ability to build an inverted index for in-memory exact phrase search and to implement JSON path traversal with wildcard ma...

Coding & Algorithms
8
0
81 people solved
Dec 13, 2025
Tower logo
Tower
Hard
Data Scientist Locked

Predict Five-Minute Returns from Order-Book Data

You have time-stamped order-book observations containing buy and sell information, instrument, price, and quantity. Cover data and labels, leakage-saf...

Machine Learning
3
0
38 people solved
Jul 26, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Compute discounted prices and full-price indices

You are given an array prices of length \(n\). Items are sold from left to right, and each item’s final selling price is computed as follows: For item...

Coding & AlgorithmsStacks & Queues
24
0
162 people solved
Mar 1, 2026
Bloomberg logo
BloombergAmazonGoogle

Also asked at Google, Meta, Microsoft

Medium
Software Engineer

Sum Frequency Imbalance Across Substrings

Problem For a nonempty string, define its beauty as its largest character frequency minus its smallest positive character frequency. For lowercase str...

Coding & AlgorithmsArrays & Strings
0
0
5 people solved
Meta logo
Meta
Medium
Product Manager

Judging Meta Ads Ranking Quality: Metrics, Experiments and Launch Criteria

You are a product manager at Meta working on ads ranking, the system that decides which ads a person sees and in what order. Design a framework for ev...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
0
0
11 people solved
Apr 22, 2026
Google logo
Google
Medium
Software Engineer

Choose Fast or Cheap Models

You are building an AI-powered product and must choose between two inference options for each request: - Option A: higher cost per token, but lower la...

ML System DesignLLM Inference & ServingMLOps & Model Serving
17
0
138 people solved
Jan 10, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a Library Management System (API and Schema)

This question tests practical system design skills by requiring candidates to model a relational data schema and REST API for a library lending system...

System DesignSystem Design FundamentalsTransactions & Isolation
29
0
240 people solved
Jun 14, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Minimize Circular Redistribution Cost

This question evaluates algorithmic problem-solving skills in array manipulation, circular data structures, load balancing, and cost optimization whil...

Coding & Algorithms
8
0
55 people solved
May 24, 2026
Perplexity logo
Perplexity
Medium
Product Manager

Presenting Hands-On AI Product and Workflow Automation Experience as a PM

You are interviewing for a product manager role at Perplexity. Walk the interviewer through your experience with AI: projects you have worked on and a...

Behavioral & LeadershipProject Deep DiveAI Product Management
1
0
11 people solved
May 6, 2026
Google logo
Google
Medium
Software Engineer

Maximize coins collected by tokens jumping +3

You are given a single-player board game represented by a string board of length N (1 ≤ N ≤ 100). Each character is one of: - '.': empty cell - 'T': a...

Coding & AlgorithmsGreedyArrays & Strings
18
0
180 people solved
Feb 13, 2026
Zomato logo
Zomato
Medium
Product Manager

Choose a Zomato app feature to retire or rebuild and justify the call

As a product manager at Zomato, pick one feature in the existing app that you would either retire or redesign. Explain which feature you chose and why...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
9 people solved
Jun 8, 2026
Axq Capital logo
Axq Capital
Medium
Software Engineer Locked

How Do You Handle Challenges? Answer with One Concrete Example

Answer the behavioral question of how you handle challenges, supported by one specific example of a difficult problem you faced at work. It tests stru...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
1
0
23 people solved
Sep 8, 2026
Uber logo
Uber
Medium
Software Engineer AI Locked

Design a Parking Lot

This question evaluates object-oriented modeling, API design, resource allocation, and concurrency control by asking for classes, relationships, key m...

Software Engineering FundamentalsLow-Level Design (OOP)Concurrency
84
0
815 people solved
Apr 21, 2026
Google logo
GoogleAmazonMeta
Medium
Software Engineer

Maximum Profit from Normal and Short Transactions

Maximum Profit from Normal and Short Transactions You are given daily stock prices in prices and a positive integer k. Complete at most k transactions...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
10 people solved
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Sort Absolute-Difference Scores Across Cyclic Shifts

Problem Two integer arrays nums1 and nums2 have the same length. For every right cyclic shift of nums1 by t positions, compute the sum of absolute dif...

Coding & Algorithms
5
0
55 people solved
Apr 20, 2026
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Splitting resources between a dish soap core business and a new laptop line

A company's best-selling product is dish soap, and it intends to enter the laptop market. How would you decide how to divide resources between the two...

Product / Decision MakingProduct StrategyPrioritization & Tradeoffs
0
0
7 people solved
Mar 9, 2026
Tubi logo
Tubi
Medium
Machine Learning Engineer

Weighted Random Sampling by Index

Weighted Random Sampling by Index You are given an array of positive integer weights weights, where weights[i] is the weight assigned to index i. Impl...

Coding & Algorithms
5
0
45 people solved
Feb 10, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Solve path and inventory problems

This question evaluates algorithmic problem-solving skills around numeric robustness and stateful stream processing, specifically testing reasoning ab...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
22
0
140 people solved
Apr 3, 2026
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