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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
LinkedIn logo
LinkedIn
Easy
Data ScientistSenior+

Evaluate a Following-Only Home Feed and Measure Its Impact

A professional social network is considering changing its home feed so that it shows only posts from accounts the member follows. Assume today's ranke...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
0
0
3 people solved
Oct 25, 2026
Microsoft logo
MicrosoftAmazonGoogle

Also asked at Google, Meta, Tesla, Uber, Valve

Easy
Software Engineer

Track Capacity in Three Parking Categories

Problem Implement ParkingSystem with three independent capacities: big, medium, and small. addCar(carType) receives 1, 2, or 3 for those categories. A...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
1
0
11 people solved
Qualified Health logo
Qualified Health
Hard
Software Engineer

Enforce Tenant and Session Isolation in an Agent RAG System

A multi-tenant Agent/RAG service stores many users' document vectors in shared infrastructure and answers questions using retrieved content and option...

System DesignAuthentication & AuthorizationAI Safety & Alignment
3
0
25 people solved
Sep 8, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, Infosys, TCS, LinkedIn, Spotify, Apple, TikTok, Cerner, Goldman Sachs, Oracle, Avito, IBM, Salesforce, Flipkart, Morgan Stanley

Medium
Software Engineer

Select a Kth-Largest Occurrence without Full Sorting

Problem Return the kth largest value in an integer array, counting repeated values separately. This means position k in descending sorted order, not t...

Coding & AlgorithmsHeaps & Priority QueuesSorting
0
0
10 people solved
Amazon logo
Amazon
Hard
Software Engineer

Maximize a Fixed-Length Sum over Sparse Constant Segments

Maximize a Fixed-Length Sum over Sparse Constant Segments Positive integer positions represent bags arranged from 1 to infinity. You are given non-ove...

Coding & Algorithms
10
1
115 people solved
Jan 29, 2026
Lyft logo
Lyft
Medium
Product Manager

Product design for a vertical takeoff and landing flying car

Design a car that can fly, lifting off and touching down vertically rather than using a runway. `hint Pick the trip before the machine Think about whi...

Product Design & StrategyProduct Sense
1
0
7 people solved
Sep 13, 2026
Boston Consulting Group logo
Boston Consulting Group
Medium
Product Manager

Explain your motivation for joining BCG X as a product manager

You are interviewing for a product manager role at BCG X, Boston Consulting Group's tech build and design unit. The interviewer asks what draws you to...

Behavioral & LeadershipMotivation & Fit
2
0
17 people solved
Jul 29, 2026
Cibc logo
Cibc
Easy
Software Engineer

Self-Introduction, Why This Role, Two Strengths and a Weakness, and a Java Self-Rating

On a short screening call for a software engineer position that involves Java, the recruiter asks a sequence of standard questions, then probes how st...

Behavioral & LeadershipSelf-Awareness & GrowthMotivation & Fit
2
0
17 people solved
Sep 21, 2026
Squarepoint logo
Squarepoint
Medium
Data Scientist Locked

Compare Bonds, Common Equity, and Dividend Payments

Compare debt and common equity claims, cash flows, risks, and why company profits do not guarantee common-share dividends.

Statistics & Math
4
0
28 people solved
Sep 9, 2026
Commure logo
Commure
Medium
Software Engineer

Design Monthly Artist Payouts from Streaming Counts

Design Monthly Artist Payouts from Streaming Counts Design a system for an audio platform that counts valid streams, aggregates them by artist, calcul...

System Design
10
0
89 people solved
Apr 17, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Resolve Conflict and Set a Team Objective

Prepare two behavioral stories: resolving a meaningful workplace conflict and setting an actionable team objective. Strong answers show competing inte...

Behavioral & Leadership
18
0
136 people solved
Jul 4, 2026
Revolut logo
Revolut
Medium
Software EngineerNew Grad

Explain DB concurrency, debugging slowness, DDD and CQRS

Backend fundamentals: concurrency, performance investigation, and architecture terms Answer the following backend questions: 1. How do databases handl...

Software Engineering FundamentalsTransactions & IsolationDebugging
39
1
421 people solved
Feb 11, 2026
Glean logo
Glean
Hard
Software Engineer

2048 Game: Slide and Merge Tiles on a 4x4 Board in Any of Four Directions

In the sliding-tile game 2048, a fixed 4 x 4 board holds numbered tiles. A move pushes the board in one of four directions: every tile slides as far a...

Coding & AlgorithmsSimulation & State MachinesArrays & Strings
8
0
57 people solved
Aug 19, 2026
Clickup logo
Clickup
Medium
Software Engineer

Design an AI-Powered Search System, Focusing on the Search Index

Design an AI-powered search system: users search in natural language and should find relevant content even when their words differ from the wording of...

System DesignSearch & Feed SystemsEmbeddings & Vector Search
2
0
24 people solved
Jul 11, 2026
Zoom logo
Zoom
Medium
Product Manager

Zoom Metric Diagnosis: Attendees per Meeting Fall From 7 to 3 as Meeting Volume Rises

You are a product manager at Zoom. Across a single quarter, the average number of attendees per Zoom meeting fell from 7 to 3, while the total number ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
11 people solved
Oct 16, 2026
ByteDance logo
ByteDance
Hard
Software Engineer

Split n People Into Two Groups So No Pair Who Dislike Each Other Shares a Group

There are n people, labeled from 1 to n, and you want to split them into two groups of any size. Some people dislike others, and a person must not end...

Coding & AlgorithmsGraphs
2
0
25 people solved
Sep 23, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Compare Survey Satisfaction for New and Established Users

Write PostgreSQL to compare survey satisfaction for new and established users across countries. The challenge emphasizes date-based cohort rules, inva...

Data Manipulation (SQL/Python)SQL
9
2
161 people solved
Jul 6, 2026
LinkedIn logo
LinkedIn
Easy
Software Engineer Locked

Arrange Nonnegative Integers to Form the Largest Number

Arrange nonnegative integers so their decimal strings form the largest possible concatenation. The prompt requires every value exactly once, returns a...

Coding & Algorithms
8
0
79 people solved
Aug 19, 2026
Revolut logo
Revolut
Medium
Software EngineerNew Grad

Implement a random fixed-size load balancer

Problem: Build a simple load balancer Implement a minimal in-memory load balancer that routes each incoming request to one backend node chosen uniform...

Coding & AlgorithmsData Structure Design
56
0
446 people solved
Feb 11, 2026
Amazon logo
AmazonGoogleNVIDIA
Medium
Software Engineer

Sample a Linked-List Node Uniformly

Sample a Linked-List Node Uniformly You receive the head of a nonempty singly linked list. Implement: - Solution(head): initialize an object using the...

Coding & AlgorithmsMath & Number TheoryProbability
1
0
7 people solved
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