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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
NVIDIA logo
NVIDIA
Medium
Data Scientist

Explain NVIDIA fit and role value

Behavioral Prompt: Why NVIDIA and Why This Data Scientist Role? You are interviewing for a Data Scientist position. In a concise, 1–2 minute answer, a...

Behavioral & LeadershipMotivation & Fit
24
0
166 people solved
Oct 13, 2025
Google logo
Google
Hard
Software Engineer

Use the Fewest Fixed-Length Bit Flips to Make Every Bit One

Problem A move flips every bit in a contiguous length-k window of binary nums. Return the minimum moves needed to make all bits1, or -1 if impossible....

Coding & AlgorithmsGreedyBit Manipulation
0
0
10 people solved
Jump Trading logo
Jump Trading
Medium
Software Engineer Locked

Identify read-only files from permission records

This question evaluates proficiency in parsing and filtering structured data by interpreting Unix-like permission strings and extracting filenames bas...

Coding & AlgorithmsArrays & Strings
11
0
137 people solved
Feb 12, 2026
Apple logo
Apple
Medium
Software Engineer

Zero out duplicates and sort an array

Coding question You are given an integer array arr of length about 75. - The data is not sorted. - The array may contain duplicate values. - You must ...

Coding & AlgorithmsSorting
28
0
249 people solved
Feb 12, 2026
Reddit logo
Reddit
Medium
Software Engineer

Explain How You Use AI in Engineering Work

Explain How You Use AI in Engineering Work Prompt How do you use AI-assisted tools in your day-to-day engineering work? Give one concrete example, exp...

Behavioral & LeadershipAI-Assisted Development
6
0
68 people solved
May 6, 2026
L
Latitudeai
Medium
Backend EngineerSenior+ Locked

Design a Thread-Safe Bounded Blocking Queue

Design a thread-safe bounded blocking queue for multiple producers and consumers, with FIFO ordering and well-defined put, take, and close behavior. D...

Software Engineering Fundamentals
10
0
73 people solved
Jul 2, 2026
Amazon logo
AmazonGoogleBloombergMeta

Also asked at Bloomberg, Meta

Medium
Software Engineer

Build the Unique Binary Tree from Parent Descriptions

Problem Each row [parent, child, isLeft] describes a parent-child edge in one valid binary tree whose node values are unique. If isLeft is 1, the chil...

Coding & AlgorithmsTrees
1
0
10 people solved
Google logo
Google
Medium
Software Engineer

Solve Quickselect, Tree Distance, and Prefix Substrings

You are given three independent coding tasks. 1. Implement Quickselect - Given an unsorted integer array nums and an integer k, return the k-th sma...

Coding & Algorithms
9
0
115 people solved
Apr 25, 2026
Coinbase logo
Coinbase
Medium
Product Manager

Favorite-product prompt: defend the meal ordering app you rely on and improve it

Which app for ordering food do you like best? Make the case for it: who it serves, what it does better than the alternatives, and where it still falls...

Product Design & StrategyProduct SenseMarket & Competitive Analysis
1
0
10 people solved
Feb 27, 2026
Google logo
Google
Medium
Product Manager

Walk Through Your Recent ML Project's Data Flow and Data-Sourcing Hurdles

In a product manager interview focused on technical depth, you are asked about the most recent AI or machine learning project you worked on. Walk the ...

Machine LearningProject Deep DiveML Data Pipelines & Feature Stores
1
0
17 people solved
May 15, 2026
Google logo
Google
Hard
Frontend EngineerSenior+

Design an Embeddable Streaming Chat Interface

Design an Embeddable Streaming Chat Interface Design an embeddable chat-agent widget. Cover the host-page integration, streaming responses over SSE or...

System Design
6
0
47 people solved
Apr 14, 2026
Lyft logo
Lyft
Medium
Machine Learning Engineer Locked

Reason About an Intercept Shift in Logistic Regression

Analyze how a fixed logistic-regression intercept shift changes the decision boundary and classification metrics on the same labeled sample. The discu...

Machine LearningRegression & Statistical ModelingModel Evaluation
19
0
133 people solved
Jul 4, 2026
Imc logo
Imc
Medium
Data ScientistIntern Locked

Handling Difficult Feedback

Respond constructively when a collaborator expresses an opinion that is difficult to hear.

Behavioral & Leadership
1
0
32 people solved
Aug 14, 2026
Amazon logo
AmazonMetaUber

Also asked at Uber, Google, Bloomberg, Anduril, Apple

Easy
Software Engineer

Verify Lexicographic Word Order under a Supplied Alphabet

Problem The string order is a permutation of the lowercase English alphabet from earliest to latest. Return whether words is lexicographically nondecr...

Coding & AlgorithmsArrays & StringsSorting
0
0
10 people solved
Amazon logo
AmazonGoogle
Medium
Software Engineer

Find the First Paint Step Completing a Row or Column

Find the First Paint Step Completing a Row or Column You are given a zero-indexed integer array arr and an m by n integer matrix mat. Each contains ev...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
0
0
10 people solved
Databricks logo
Databricks
Medium
Backend Engineer

Find First Anagram Occurrence

Given two strings text and pattern, return the starting index of the first substring in text that is an anagram of pattern. If no such substring exist...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
23
0
230 people solved
Apr 2, 2026
Anthropic logo
Anthropic
Medium
Machine Learning Engineer Locked

Explain multithreading vs multiprocessing

This question evaluates understanding of concurrency and parallelism, specifically multithreading versus multiprocessing, their interaction with multi...

Software Engineering FundamentalsConcurrencyOperating Systems
60
0
447 people solved
Feb 11, 2026
Amazon logo
AmazonGoogle
Easy
Software Engineer

Count Digit Occurrences That Divide the Original Number

Problem For positive integer num, count the decimal digit occurrences whose values divide the original num exactly. The input contains no zero digit, ...

Coding & AlgorithmsMath & Number Theory
1
0
10 people solved
Uber logo
Uber
Medium
Software Engineer

Count connected islands using Union-Find

You are given an m x n grid of characters where '1' represents land and '0' represents water. An island is a group of horizontally or vertically adjac...

Coding & AlgorithmsGrids & MatricesGraphs
32
0
249 people solved
Feb 20, 2026
Two Sigma logo
Two Sigma
Hard
Data ScientistIntern

Count Distinct Island Shapes in a Binary Grid

You are given an m x n binary grid grid, where grid[i][j] is either 0 (water) or 1 (land). An island is a maximal group of 1-cells connected 4-directi...

Coding & Algorithms
6
0
66 people solved
Nov 15, 2025
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