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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
Google logo
Google
Medium
Product Manager

Google Product Strategy: Whether and How to Build Location-Level Wi-Fi Quality Data

Google is considering building the ability to measure how good the Wi-Fi is at different locations. Should it put money into this, and if your answer ...

Product Design & StrategyProduct StrategyPrivacy & Compliance
0
0
5 people solved
May 4, 2024
Meta logo
Meta
Medium
Software Engineer Locked

Add two binary strings

This question evaluates proficiency with binary arithmetic and string manipulation, focusing on carry propagation and handling of very long inputs wit...

Coding & Algorithms
4
0
45 people solved
Jan 5, 2026
Meta logo
Meta
Medium
Product Manager

Metrics framework for Facebook's content-sharing feature

You own the Share feature on Facebook as its product manager. Share lets people pass content they come across on Facebook along to other people. Expla...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
0
0
6 people solved
Mar 28, 2024
SoFi logo
SoFi
Easy
Software Engineer Locked

Rearrange array to maximize positive prefix sums

This question evaluates array manipulation, prefix-sum reasoning, and greedy/combinatorial optimization skills for maximizing a permutation-based metr...

Coding & AlgorithmsGreedySorting
14
0
135 people solved
Jan 7, 2026
Google logo
Google
Medium
Product Manager

Product Design: Reduce Qualified Candidates Wrongly Rejected in Google's Hiring Funnel

You are a product manager at Google. Recruiting costs the company roughly a billion dollars a year. The hiring process has been tuned hard to avoid fa...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
4 people solved
Jan 5, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Implement image carousel with comments and upvotes

Implement an image carousel that supports: 1) cycling forward/backward and autoplay with a configurable interval; 2) a per-image comment thread with c...

Coding & AlgorithmsLow-Level Design (OOP)
7
0
104 people solved
Sep 6, 2025
Google logo
Google
Medium
Product Manager

Diagnose and act on a weak Net Promoter Score at Walmart's physical stores

The net promoter score (NPS) for Walmart's offline business, its physical stores, is low. Suppose you are the product manager asked to look into it. E...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
6 people solved
Jan 24, 2024
Robinhood logo
Robinhood
Medium
Product Manager

Owning a Shortcut That Became Tech Debt and the Options You Weighed

Tell me about a time you introduced technical debt. What were the consequences, and what other options did you have when you made that decision? `hint...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
0
0
4 people solved
Jun 5, 2024
Lowe's logo
Lowe's
Hard
Software Engineer

Explain cloud computing fundamentals

Explain cloud computing fundamentals Design a Cloud-Native, Horizontally Scalable, Fault-Tolerant Web Application for Millions of Users Context You ar...

System Design
4
0
45 people solved
Aug 10, 2025
Google logo
Google
Medium
Product Manager

Go-to-Market Plan for a New Google Digital Library Product

You are a product manager at Google, asked to launch a new product in the digital library space. Walk through how you would plan and run the launch. `...

Product Design & StrategyRequirements & Launch ExecutionProduct Strategy
0
0
5 people solved
Jun 19, 2024
One Medical logo
One Medical
Medium
Product Manager

Tele-Counseling Product Improvement: Use the Counselor App to Reduce Patient Drop-Off

You are the product manager for a tele-counseling platform. It is two-sided: patients use one app to receive counseling, and counselors use a separate...

Product Design & StrategyProduct Design & Improvement
0
0
6 people solved
May 12, 2024
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Answer Leadership and Collaboration Prompts

This question evaluates leadership, collaboration, interpersonal communication, conflict resolution, adaptability, and self-reflection competencies wi...

Behavioral & LeadershipConflict & CollaborationInnovation & Simplification
5
0
45 people solved
Nov 17, 2025
Google logo
Google
Medium
Product Manager

Pick a transformative bet for the restaurant industry and plan its rollout as CEO

You are the CEO of a company whose ambition is to transform the restaurant industry, not merely to compete in it. What would you do? Explain where in ...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
4 people solved
Jul 26, 2024
HP logo
HP
Medium
Product Manager

Behavioral: Explaining How You Lead, Backed by Real Examples

How would you describe your leadership style? `hint Anchor the words in behavior Whatever words you choose for your style, be ready to back each one w...

Behavioral & LeadershipLeadership & Influence
0
0
6 people solved
Jan 16, 2024
Raiffeisenbank logo
Raiffeisenbank
Hard
Machine Learning Engineer

Self-Attention Complexity, FlashAttention, PagedAttention, and RoPE in Code

Answer four questions on transformer attention: how self-attention works and what it costs, what FlashAttention is and what it improves, what PagedAtt...

Machine LearningTransformers & AttentionLLM Inference & Serving
0
0
1 people solved
Apr 15, 2026
C3 AI logo
C3 AI
Easy
Data Scientist

Identify a classic bagging algorithm

Identify a classic bagging algorithm Multiple choice: Bagging Which of the following algorithms is a classic example of bagging (bootstrap aggregating...

Machine Learning
3
0
67 people solved
Aug 9, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Private Photo App for Extended Families, Accessible to a Visually Impaired Relative

You are asked to design a photo-sharing app built for an entire family, so that relatives can share pictures with one another. After you present your ...

Product Design & StrategyProduct SenseAccessibility & Inclusive Design
0
0
5 people solved
Aug 13, 2024
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Compute distance of each node to a cycle

This question evaluates proficiency in graph algorithms, including understanding unicyclic graph structure, cycle identification, and computing minimu...

Coding & AlgorithmsGraphsStacks & Queues
5
0
103 people solved
Jan 9, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

Solve rotating-lock BFS with blockers

You are given a 4-digit lock starting at "0000". In one move, you may pick a single position and rotate it +1 or −1 with wrap-around (0→9 on −1, 9→0 o...

Coding & Algorithms
4
0
88 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Shazam Success Metrics: North Star, Recognition Funnel and Guardrails for a Music ID App

Shazam is an app that identifies a song from a few seconds of audio picked up by the device's microphone and lets the user act on the result, for exam...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
0
0
4 people solved
Sep 1, 2024
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