Databricks Data Scientist Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Explain Linear Regression Assumptions
Suppose you are using ordinary least squares linear regression to model a continuous business outcome such as weekly user spend from several features,...
Count weekly customers with YTD spend ≥ $1000
You have a transactions table: transactions - date (DATE) — transaction date in UTC - transaction_id (STRING) - customer_id (STRING) - dollars (NUMERI...
Find Top-5 Similar Rows
You are given two point-in-time snapshot tables generated on the same day in UTC. There is no direct key relationship between the tables; each row in ...
Compare ROC-AUC vs PR-AUC
Explain the difference between ROC-AUC and PR-AUC (Average Precision / area under the Precision–Recall curve). In your answer, cover: 1. What each cur...
Test coin fairness from 560 tails in 1000 flips
You flip a coin n = 1000 times and observe 560 tails. At significance level α = 0.05, test whether the coin is fair. - State the null and alternative ...
Count weekly customers with ≥$1000 YTD spend
You are given a transaction-level table and need to compute a weekly time series. Table transactions - date (DATE) — transaction date (assume UTC and ...
Diagnose and fix multicollinearity in income regression
You want to estimate the relationship between gender and income using a regression model, while controlling for other covariates such as: - age - educ...
Explain ROC-AUC vs PR-AUC tradeoffs
In a binary classification setting, you trained a model that outputs predicted probabilities. 1) Explain what ROC-AUC and PR-AUC measure, including th...
Relate coefficients under linear feature transformation
Answer both parts. Part 1: Coefficients under feature transformation You have original predictors \(x_1, x_2\) and define transformed predictors: - \(...
Test if coin is fair from 560 tails
You flip a coin n = 1000 times and observe 560 tails. At significance level α = 0.05, test whether the coin is fair. Requirements: - State the null an...
Explain Linear Regression Feature Transformation Equivalence
Linear Regression Feature Representations and High-Dimensional Modelling Context You are evaluating two linear regression specifications that use diff...
Relate coefficients under linear feature transformation
Suppose you are fitting a linear regression model and you consider two different feature parameterizations. Original features: x1, x2. Transformed fea...
Find top-5 most similar rows across datasets
You are given two datasets with the same feature columns: - source (rows you want to match): - source_id (STRING/INT) - f1...fk (NUMERIC; may cont...
Calculate Second-Degree Followers for Each YouTuber
following +----------+----------+ | YouTuber | follower | +----------+----------+ | A | B | | A | C | | B | D ...
Find top-5 most similar rows across datasets
You can solve this in SQL or Python. You are given two datasets with the same feature columns: Tables target_rows (rows you want to match) - target_id...