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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Intuit logo
Intuit
Medium
Data Scientist

Explain a non-linear industry switch

Behavioral Interview Prompt — Transition from Semiconductor to SaaS Analytics You are in an HR screen for a Data Scientist role. The interviewer chall...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
12
0
93 people solved
Oct 13, 2025
OneMain Financial logo
OneMain Financial
Medium
Data Scientist Locked

Choose evaluation metrics for imbalanced risk model

This question evaluates understanding of cost-sensitive decision making, probabilistic thresholding, evaluation metric selection under class imbalance...

Machine Learning
7
0
60 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Software EngineerSenior+

Design a content processing service

System Design: High-Throughput Content Processing Service Context Design a content processing and moderation service for a large-scale media app. Cont...

System Design
5
0
59 people solved
Sep 6, 2025
Meta logo
Meta
Hard
Machine Learning EngineerSenior+ AI Locked

Optimize a Fifteen-Sum Card Strategy

This question evaluates algorithmic problem-solving, debugging, simulation-based testing, and strategy optimization using techniques such as search, m...

Coding & Algorithms
8
0
83 people solved
Mar 1, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Answer two coding questions (SQL and DP)

This multi-part question evaluates SQL query skills (handling distinct values, aggregation and edge-case NULL results) and algorithmic proficiency in ...

Coding & AlgorithmsDynamic ProgrammingSQL
27
0
235 people solved
Feb 12, 2026
Instacart logo
Instacart
Medium
Software Engineer

Describe challenges and proud accomplishment

Describe challenges and proud accomplishment Behavioral: Significant Challenge and Proud Accomplishment (Software Engineer Onsite) Provide two concise...

Behavioral & Leadership
3
0
46 people solved
Aug 1, 2025
Meta logo
Meta
Hard
Data Scientist

Justify EU B2B Chat Product Strategy

Executive Brief Task: EU B2C Customer-Service Chat (Subscription) Context You are asked to prepare a one-page executive brief recommending whether to ...

Behavioral & Leadership
5
0
58 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Hard
Software Engineer

Design a dynamic rental pricing system

System Design: ML-Driven Nightly Pricing for Short-Term Rentals Context Design a production ML system that recommends (and optionally auto-sets) night...

ML System DesignExperiment Design (A/B Testing)Feature Engineering
18
0
177 people solved
Aug 12, 2025
Boeing logo
Boeing
Easy
Software Engineer Locked

Compute unique-substring length and first unique index

This question evaluates proficiency in string processing and character-frequency reasoning by combining tasks that measure longest distinct-character ...

Coding & Algorithms
2
0
40 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Data Scientist

Identify Top Spenders and Segment Customers Using Python

orders +----------+---------+------------+----------+--------------+-------------------+ | order_id | cust_id | order_date | product | order_amount |...

Data Manipulation (SQL/Python)
78
0
28 people solved
Jul 12, 2025
TikTok logo
TikTok
Medium
Machine Learning Engineer

Find and count target-sum subarrays

Find and count target-sum subarrays Given an integer array nums and an integer target, implement: ( 1) a function that returns true if any non-empty c...

Coding & Algorithms
8
0
69 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Data Scientist

Calculate Engagement Metrics for Info-Stream Content Analysis

info_stream_views +----------+-----------+--------------+----------+------------+ | post_id | viewer_id | relationship | duration | ds | +---...

Data Manipulation (SQL/Python)
109
1
255 people solved
Jul 12, 2025
Google logo
Google
Hard
Software Engineer

Reason About CPU Microarchitecture and Simulator Design

Reason About CPU Microarchitecture and Simulator Design Answer the following systems questions for a modern out-of-order CPU. State architectural assu...

Software Engineering Fundamentals
2
0
22 people solved
Mar 27, 2026
Amazon logo
Amazon
Easy
Applied Scientist

Contrast CNNs and fully connected networks

Compare convolutional neural networks (CNNs) with fully connected (dense) networks. Explain: - The structural differences between convolutional layers...

Machine Learning
4
0
70 people solved
Dec 8, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Compute capacity, staffing trade-offs, and break-even

This question evaluates capacity-planning, bottleneck identification, labor-cost trade-offs, contractor vs overtime comparisons, break-even computatio...

Analytics & Experimentation
7
0
67 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze Recent User Engagement in Video Calls

calls +-----------+-----------+---------------------+---------+---------+ | caller_id | callee_id | call_start_timestamp| country | call_id | +-------...

Data Manipulation (SQL/Python)
85
0
275 people solved
Jul 12, 2025
Worldquant logo
Worldquant
Medium
Data Scientist

Price a Sequential Four-Box Search Game

Price a Sequential Four-Box Search Game Four boxes contain one \$100 prize. Each opening costs the same fee x; you choose an unopened box and may stop...

Statistics & Math
2
0
31 people solved
Feb 26, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer Locked

Design a cloud-based global property rental platform

This question evaluates skills in cloud-native system architecture, distributed systems design, scalability, security, data modeling, and operational ...

System Design
8
0
82 people solved
Feb 8, 2026
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Analyze Python Functions: Improve Readability and Efficiency

Analyze Python Functions: Improve Readability and Efficiency Scenario Zoom interview code-review segment: interviewer shares three short Python functi...

Coding & AlgorithmsCode Quality & MaintainabilityProgramming Languages
6
0
87 people solved
Aug 4, 2025
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Heapify an array into a max-heap

Given the array [6, 15, 2, 4, 3, 8, 19], apply heapify to build a max-heap using the standard in-place bottom-up method with a 0-indexed array represe...

Coding & AlgorithmsHeaps & Priority Queues
10
0
104 people solved
Sep 6, 2025
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