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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
Cloudflare logo
Cloudflare
Easy
Software Engineer

Resolve conflicts during code reviews

In a behavioral interview, you are asked: > How do you resolve conflicts during code reviews? Describe how you would handle disagreements about code c...

Behavioral & Leadership
3
0
70 people solved
Dec 8, 2025
Google logo
Google
Medium
Product Manager

Redesign the Traveler Journey Through Airport Screening Checkpoints

Your task is to make going through security at an airport a better experience. Decide whose experience you are improving and at which kind of airport,...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
9 people solved
Mar 14, 2026
Salesforce logo
Salesforce
Hard
Software Engineer

Implement an LFU cache

Problem: LFU Cache Design and implement a Least Frequently Used (LFU) cache with a fixed capacity. The cache supports the following operations: - get(...

Coding & AlgorithmsData Structure DesignCaching
16
0
136 people solved
Dec 15, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Review an existing architecture for risks

This question evaluates an engineer's ability to perform an architecture review, identifying imminent scalability, reliability, operability, and secur...

System Design
11
0
89 people solved
Jan 6, 2026
Amazon logo
Amazon
Medium
Software Engineer

Minimum Moves for a Squirrel to Carry Every Nut to a Tree One at a Time

A squirrel and a tree are on a rectangular grid with height rows and width columns, and several nuts lie on other cells of the grid. The squirrel must...

Coding & AlgorithmsGreedy
3
0
23 people solved
Mar 11, 2026
Lyft logo
Lyft
Medium
Product Manager

Lyft new-city pricing: trading take rate for match rate on a scheduled airport route

You own pricing for Lyft's scheduled rides, and Lyft is entering a new city, for example Toledo, Ohio. The city has several routes, but for this exerc...

Product / Decision MakingGrowth & MonetizationBusiness Case Analysis
1
0
11 people solved
Apr 3, 2026
ByteDance logo
ByteDance
Hard
Machine Learning Engineer

Count Special Subarrays by Modular Frequency

You are given an integer array nums, and two integers modulo and target, where 0 <= target < modulo. Call an index i special if nums[i] % modulo == ta...

Coding & Algorithms
2
0
27 people solved
Oct 8, 2025
Amazon logo
Amazon
Medium
Software Engineer

Maximize equal values via one subarray shift

Given an integer array A of length n, you may perform at most one operation: choose any contiguous subarray A[l..r] and add an integer Δ (which may be...

Coding & Algorithms
8
0
80 people solved
Aug 13, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Compute product of array except self

This question evaluates understanding of array manipulation, modular arithmetic, and algorithmic optimization by requiring computation of per-element ...

Coding & Algorithms
4
0
70 people solved
Feb 11, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Support a Struggling Teammate Without Sacrificing Team Health

You lead a team with an important but challenging delivery. Use a concrete situation, your decisions and trade-offs, how you influenced others, and ev...

Behavioral & LeadershipMentoring & Team GrowthOwnership & Execution
16
0
152 people solved
Aug 6, 2026
Elsevier logo
Elsevier
Easy
Data Scientist

Write Unit Tests for a Given Python Class, Covering Normal and Edge Cases

A data scientist interview includes a short coding and testing exercise: you are given the implementation of a small Python class and asked to write t...

Software Engineering FundamentalsTesting & Quality
0
0
3 people solved
Jul 14, 2026
Nextdoor logo
Nextdoor
Medium
Machine Learning Engineer

Implement and use a version comparator

Implement and use a version comparator You are given up to 100,000 version-like identifiers (e.g., "1.0", "01.2.0", "2.0.0-alpha", "1.10.3"). Implemen...

Coding & AlgorithmsSortingParsing & Interpreters
12
0
120 people solved
Jul 27, 2025
Dropbox logo
Dropbox
Medium
Software Engineer Locked

Build a hit/miss word guessing game

This question evaluates implementation skills in managing stateful systems and data structures for pattern matching, as well as algorithmic and advers...

Coding & AlgorithmsLow-Level Design (OOP)Simulation & State Machines
9
0
188 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Technical Program ManagerSenior+

Answer Amazon leadership behaviorals

In an Amazon L6 Senior Program Manager interview, candidates may be asked several Leadership Principles-style behavioral questions. Prepare senior-lev...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
23
0
228 people solved
Sep 7, 2024
C3 AI logo
C3 AI
Medium
Data Scientist Locked

Explain RNN Applications Beyond Time-Series Forecasting

Explore RNN applications beyond time-series forecasting, including text classification, sequence labeling, speech, handwriting, biology, and event str...

Machine Learning
1
0
17 people solved
Aug 9, 2026
Google logo
Google
Medium
Software Engineer Locked

Implement Employee Management and Expression Evaluation

This question evaluates competency in designing and maintaining hierarchical data structures and in parsing and evaluating nested function-style arith...

Coding & Algorithms
10
1
135 people solved
May 30, 2026
Google logo
Google
Medium
Product Manager

Google Maps Live Location Sharing: Architecture for Freshness, Battery and Privacy

You are a product manager on Google Maps, and the interviewer wants to see how well you understand the engineering behind location sharing: the featur...

System DesignTechnical Tradeoffs for PMsReal-Time Systems
1
0
12 people solved
Jan 24, 2025
Reddit logo
Reddit
Easy
Data Scientist

Collaborate with PM and Eng as DS

Question As a Data Scientist working with Product Managers and Engineers: 1. How do you structure collaboration (requirements, timelines, ownership)? ...

Behavioral & LeadershipCommunication & StakeholdersLeadership & Influence
10
0
108 people solved
Dec 11, 2025
Apple logo
Apple
Hard
Data Scientist

Telemetry and Metric Specs for a Connected Vending Machine with Recommendations

A team is developing an internet-connected vending machine with a companion app. The machine will recommend products to customers based on their purch...

Analytics & ExperimentationMetrics & KPIsData Ingestion & CDC
0
0
5 people solved
May 2, 2026
Optiver logo
Optiver
Medium
Software Engineer

Explain OS processes, threads, and memory

Explain OS processes, threads, and memory Explain core operating system concepts: processes vs threads, context switching, and scheduling (preemptive ...

Coding & AlgorithmsOperating SystemsConcurrency
46
2
470 people solved
Jul 17, 2025
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