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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Solve String Addition and Expression Evaluation

This question evaluates string manipulation and parsing skills for numeric computation, covering addition of integers represented as character arrays ...

Coding & Algorithms
6
0
51 people solved
Apr 16, 2026
Meta logo
Meta
Medium
Data Scientist

Build Trust Quickly with New Team Stakeholders

Build Trust Quickly with New Team Stakeholders This behavioral prompt assesses cross-functional collaboration for a data scientist role. The interview...

Behavioral & Leadership
18
0
95 people solved
Jul 12, 2025
Google logo
Google
Medium
Data Scientist

Analyze Call Drop Rates Pre- and Post-Update Implementation

Analyze Call Drop Rates Pre- and Post-Update Implementation Engineers shipped a new Google Meet version intended to reduce call drops, but a tradition...

Analytics & Experimentation
24
0
87 people solved
Jul 12, 2025
Medium
Machine Learning EngineerSenior+ Locked

Implement Linear Regression Training

This question evaluates understanding of linear regression, mean squared error loss, gradient computation, parameter updates, and proficiency with vec...

Coding & Algorithms
2
0
35 people solved
Mar 31, 2026
Point72 logo
Point72
Medium
Data Scientist

Determine Most Frequent Product Color in Carts

Scenario Online store wants to know which color of product appears most frequently in customers’ carts. Question Implement a function getMaxColor(colo...

Coding & Algorithms
33
0
130 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Engineer

Solve library coding tasks in Python

Solve library coding tasks in Python Implement the following Python tasks: 1) Given a list of (category, points) for books, choose up to 3 books with ...

Coding & AlgorithmsSimulation & State Machines
13
0
96 people solved
Jul 16, 2025
TikTok logo
TikTok
Hard
Machine Learning Engineer Locked

Answer ML fundamentals and diagnostics questions

This question evaluates proficiency with confusion-matrix metrics (recall and false positive rate), ensemble learning trade-offs, decision-tree split/...

Machine LearningML FundamentalsModel Evaluation
13
0
96 people solved
Jan 22, 2026
Snowflake logo
Snowflake
Hard
Software Engineer

Compute Inherited Role Privileges

You are given n roles. The array initialPrivileges has length n, where initialPrivileges[i] is the list of privileges directly assigned to role i. You...

Coding & Algorithms
12
0
90 people solved
Apr 5, 2026
Instacart logo
Instacart
Medium
Software Engineer

Describe your most complex end-to-end project

Describe your most complex end-to-end project End-to-End Project Deep Dive (Behavioral) Describe the most complex end-to-end project you led or signif...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
4
0
83 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Software Engineer

Find the kth largest element

Given an unsorted array of n integers and an integer k (1 ≤ k ≤ n), return the k-th largest element without fully sorting the array. Design two method...

Coding & Algorithms
4
0
37 people solved
Aug 12, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Count islands by requested sizes

This question evaluates a candidate's understanding of grid connectivity, identification of connected components, and the ability to aggregate compone...

Coding & AlgorithmsGrids & MatricesGraphs
24
0
171 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Data Scientist

Choose Metrics for Evaluating Fake-User Classifier

Choose Metrics for Evaluating a Fake-User Classifier A sudden spike in daily average comments may be driven by fake users. You are asked to build a bi...

Machine Learning
21
0
69 people solved
Jul 12, 2025
ByteDance logo
ByteDance
Medium
Data Scientist

Walk through a data pipeline project

Describe a data pipeline project you built or owned end-to-end. In your answer, cover: - The business problem and downstream consumers (dashboards, mo...

Behavioral & LeadershipProject Deep DiveData Quality & Validation
12
0
88 people solved
Nov 12, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluating the Facebook ‘Memory’ feature

Evaluating the Facebook Memories Feature You are asked to assess whether the Memories feature, which resurfaces users' past posts, delivers real user ...

Analytics & Experimentation
96
0
310 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze DAU comments distribution and resampling

Consider the metric comments_per_DAU (number of comments a daily active user makes in a day). a) Shape: Describe and justify the expected distribution...

Statistics & Math
8
1
81 people solved
Oct 13, 2025
Coursera logo
Coursera
Medium
Software Engineer

Implement plurality and majority voting

You are given an array votes of length n, where each element is a candidate identifier (string or integer). Implement two voting systems: 1) Plurality...

Coding & Algorithms
7
0
63 people solved
Dec 15, 2025
AMD logo
AMD
Easy
Software Engineer

Build a UVM testbench: driver, monitor, scoreboard and coverage-driven closure

You are interviewing for a hardware design verification role, and the interviewer wants to see whether you have really built and used a verification e...

Software Engineering FundamentalsTesting & Quality
1
0
10 people solved
Apr 30, 2024
Meta logo
Meta
Medium
Software Engineer

Implement string dedup and mirror tree traversal

- String cleanup with group deletions (LeetCode-inspired): Given a string s consisting of lowercase letters, repeatedly delete any maximal contiguous ...

Coding & Algorithms
2
0
40 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Machine Learning Engineer

Generate unique permutations with duplicates

Given an array of integers that may contain duplicates, generate all unique permutations. Ensure no duplicate permutations are returned even if some v...

Coding & Algorithms
8
0
68 people solved
Sep 6, 2025
NVIDIA logo
NVIDIA
Hard
Data Scientist

Analyze overfitting, DenseNet, preprocessing, and cross-validation

Image Classification in Healthcare: End-to-End Interview Task Context: You are designing and evaluating an image-classification system for a healthcar...

Machine Learning
13
0
94 people solved
Oct 13, 2025
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