PySpark Interview Practice

Practice PySpark Online

{{ totalCount }} questions · {{ shHardPct }}% Hard. Real PySpark DataFrame and Spark SQL interview questions. Write PySpark in your browser on TechTown’s Spark engine, run sample tests, then submit against hidden tests.

Questions

Topics

Solved

Acceptance

Bookmark Question Topic Difficulty Status

{{ r.n }} - {{ r.title }}{{ r.badge }}{{ r.lock }} {{ r.topic }} {{ r.difficulty }} {{ r.statusIcon }}

No questions match these filters.

Showing {{ shRange }} of {{ shFilteredCount }}

Guests can solve {{ freeLimit }} problems for free. Log in or sign up (free) to unlock everything, keep your streak and appear on the leaderboard. New to a topic? Learn it first in the Spark course.

Your Progress

Reset all progress on this practice page{{ shResetScope }}? This can't be undone.

{{ pr.label }} ({{ pr.pct }}%){{ pr.solved }}/{{ pr.total }}

Points: {{ shMyPoints }} · Easy 10 · Medium 20 · Hard 40

Daily challenge

{{ daily.title }} · {{ daily.difficulty }}

🔥 Longest streak: {{ shStreak.longest }}Current streak: {{ shStreak.current }}

Leaderboard (rolling 100 days)

Loading…

{{ u.rank }} {{ u.name }}{{ u.points }} pts

{{ p.num }}. {{ p.title }} {{ p.difficulty }} {{ p.topic }} {{ p.solvedLabel }}

{{ shPointsLabel }} ⏱ {{ shTimer }}

Example {{ ex.n }}

{{ tb.title }}

{{ c.v }}

Expected result

{{ c.v }}

Constraints

Learn the concept first: {{ p.topic }} in the Spark course

Your submissions (last 20, saved on this device)

No submissions yet. Press Submit to judge your code against all tests.

🔒 Solution locked

The model solution and step-by-step explanation unlock when you solve this problem or after 3 unsuccessful submissions ({{ shFailsLabel }}). Struggling? Try the hints on the Question tab first.

Why this approach — step by step

Optimal solution (PySpark)

{{ p.solution }}

Runs in an isolated browser sandbox · {{ engineLabel }}

Write real PySpark: from pyspark.sql import functions as F, Window, spark.sql(...). It runs in your browser on a lightweight Spark engine, and the same code runs unchanged on Databricks or any Spark cluster. Use df.show() or print() to debug.

{{ errorText }}

Expected

{{ c.v }}

Your output

{{ c.v }}

stdout:
{{ stdout }}

Enjoying your practice journey?

Create your free TechTown account to unlock every problem, track your progress, bookmark questions and keep preparing for interviews.