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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
Akuna Capital logo
Akuna Capital
Hard
Software Engineer Locked

Choose Between Python, Java, and C++ for a Service

Choose among Python, Java, and C++ for an API-heavy automation service, a large high-throughput business service, and a latency-sensitive component, a...

Software Engineering Fundamentals
9
0
67 people solved
Aug 1, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer Locked

Solve scheduling and collision problems

This question evaluates a candidate's understanding of algorithm design and data structures for resource allocation and dynamic interaction problems, ...

Coding & Algorithms
11
0
91 people solved
Jan 29, 2026
Intuit logo
Intuit
Medium
Software Engineer

Walk through resume and share behavioral examples

Behavioral Prompt — Software Engineer Technical Screen Context: In a technical screen for a Software Engineer role, you are asked to succinctly commun...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
7
0
137 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Data Scientist

Write SQL to find top net-revenue products

Using the sample schema and data below, write a single SQL query that returns, for the last 7 days relative to today (use today = 2025-09-01, so the w...

Data Manipulation (SQL/Python)SQL
7
0
97 people solved
Oct 13, 2025
Lyft logo
Lyft
Medium
Data Scientist

Compute Poisson supply–demand match probability

In a city-day of a two-sided marketplace, customer demand D ~ Poisson(8) and supplier capacity S ~ Poisson(6), assumed independent. (a) Compute P(S >=...

Statistics & MathProbability
12
0
170 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Product Manager

Capital One PM: Design Low-Friction Identity Proofing That Stops Impostors

You are a product manager at Capital One. Design a tool that confirms customers really are who they claim to be: decide where it is used, who it serve...

Product Design & StrategyTrust & SafetyAuthentication & Authorization
0
0
8 people solved
May 6, 2025
Uber logo
Uber
Easy
Software Engineer

Find smallest start index avoiding left exit

You are given an integer array jump of length n (0-indexed). If you are currently at index i, your next position becomes i + jump[i] (a positive value...

Coding & Algorithms
9
0
71 people solved
Dec 30, 2025
Mintlify logo
Mintlify
Medium
Software Engineer

Why an Index on an Unindexed Filter Column Speeds Up a Slow Query, and Its Costs

A database query against a large table runs slowly. The query filters rows on a column that has no index. Explain what adding an index on that column ...

Software Engineering FundamentalsIndexing & Query PerformanceDatabase Internals
0
0
2 people solved
Jul 26, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Implement crawler and bracket validator

Implement two tasks: ( 1) Write a function crawl(start_urls, fetch, max_depth, domain_filter) that visits pages starting from the given seed URLs usin...

Coding & AlgorithmsGraphsStacks & Queues
18
0
208 people solved
Sep 6, 2025
Airtable logo
Airtable
Medium
Software Engineer Locked

Count business days excluding holidays

This question evaluates proficiency in date and calendar arithmetic, handling set-based exclusions (holiday lists), and reasoning about algorithmic ef...

Coding & AlgorithmsMath & Number Theory
30
0
349 people solved
Jan 22, 2026
Uber logo
Uber
Hard
Data Scientist

Explain grocery-specific product strategy and scrappy XP

Launching Grocery Delivery in NYC: Product and Experimentation Plan Context A delivery platform that is strong in restaurant delivery is launching a g...

Behavioral & LeadershipExperiment Design (A/B Testing)Metrics & KPIs
4
0
86 people solved
Oct 13, 2025
Glean logo
Glean
Medium
Software Engineer Locked

Robust Selenium Code to Extract Text from Two Elements

This question evaluates practical knowledge of browser test automation, specifically writing reliable Selenium code that reads text from web elements ...

Software Engineering FundamentalsTesting & Quality
7
0
110 people solved
Jun 19, 2026
Meta logo
Meta
Medium
Software Engineer

Solve vertical order & diameter variants

Question LeetCode 314. Binary Tree Vertical Order Traversal LeetCode 543. Diameter of Binary Tree – modified to return the number of nodes (edges + 1)...

Coding & Algorithms
5
0
33 people solved
Jul 29, 2025
Medium
Software Engineer Locked

Test Severity Filtering with Contract-Distinguishing Cases

Test severity filtering with independent expected results, inclusive boundaries, misleading message text, missing fields, empty records, and preserved...

Software Engineering FundamentalsTesting & Quality
1
0
13 people solved
Sep 16, 2026
PayPal logo
PayPal
Medium
Data ScientistSenior+ Locked

How to validate production models?

This question evaluates a candidate's competency in production model validation, covering model risk assessment, data and label quality, time-dependen...

Machine Learning
9
0
80 people solved
Mar 14, 2026
TikTok logo
TikTok
Medium
Data Scientist

Compute 7-Day Rolling Average of Unique Post Viewers

POST_VIEWS +---------+------------+---------+ | user_id | view_date | post_id | | 101 | 2023-08-01 | 10 | | 102 | 2023-08-01 | 11 |...

Data Manipulation (SQL/Python)
95
0
487 people solved
Jul 12, 2025
Google logo
Google
Medium
Data Scientist

Implement percentage RMSE and bootstrap its CI

Given a CSV with columns [country, actual_revenue, predicted_revenue], define percentage RMSE as pRMSE = sqrt(mean_i((pred_i/actual_i − 1)^2)). a) Imp...

Coding & Algorithms
14
0
106 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Evaluate merchant partnership for high-value customers

Partnership evaluation to acquire high‑LTV cardholders: Home‑sharing (RH) vs Big‑box retailer Context C1, a credit‑card issuer, is considering marketi...

Analytics & Experimentation
7
0
85 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Aggregate exam scores with NULL handling

Write a single SQL query (or CTE pipeline) to satisfy all requirements using the schema and sample data below. Replace any vendor-specific function wi...

Data Manipulation (SQL/Python)
3
0
52 people solved
Oct 13, 2025
Ola logo
Ola
Medium
Product Manager

LinkedIn Creator Engagement: Segment Creators, Prioritize Bets and Pick Metrics

You are a product manager at LinkedIn. Leadership wants more engagement around the people who publish content on LinkedIn, from well-known industry vo...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
9 people solved
Apr 1, 2026
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