HACKERRANK Study Guide 2026

Everything you need to pass the HACKERRANK exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 HACKERRANK Exam Format at a Glance

Questions

90 min

Time Limit

70%

Passing Score

Take a Full HACKERRANK Exam Simulation →

📚 HACKERRANK Topics to Study (75)

Algorithms · 7 cards Algorithms · 7 cards Algorithms · 7 cards Algorithms · 7 cards Built-in Functions and Lambdas · 7 cards Built-in Functions and Lambdas · 7 cards Built-in Functions and Lambdas · 7 cards Built-in Functions and Lambdas · 7 cards Career Benefits · 7 cards Career Benefits · 7 cards Career Benefits · 7 cards Career Benefits · 7 cards Collections and Data Structures · 7 cards Collections and Data Structures · 7 cards Collections and Data Structures · 7 cards Collections and Data Structures · 7 cards Control Flow and Looping · 7 cards Control Flow and Looping · 7 cards Control Flow and Looping · 7 cards Control Flow and Looping · 7 cards Credential Overview · 7 cards Credential Overview · 7 cards Credential Overview · 7 cards Credential Overview · 7 cards Exam Structure and Content · 7 cards Exam Structure and Content · 7 cards Exam Structure and Content · 7 cards Exam Structure and Content · 7 cards File I/O and Exception Handling · 7 cards File I/O and Exception Handling · 7 cards

See all 75 topics as flashcards →

✍️ Sample HACKERRANK Questions & Answers

1. What is the result of `10 % 3`?

✓ 1

The modulo operator `%` returns the remainder after division; `10 ÷ 3` has remainder `1`.

2. What is the output of `list(map(lambda x: x**2, [1, 2, 3, 4]))`?

✓ [1, 4, 9, 16]

`map` applies the lambda squaring function to each element, producing [1, 4, 9, 16].

3. A HackerRank Python (Basic) certification primarily tests proficiency in which area?

✓ Core Python syntax, data types, and basic problem-solving

The Basic certification focuses on core Python syntax, data types, and foundational problem-solving skills.

4. Which Python feature helps reduce repetitive code and is commonly tested in HackerRank certification problems?

✓ List comprehensions

List comprehensions offer a concise way to build lists and are a hallmark of idiomatic Python that certification problems reward.

5. What is the value of `0.1 + 0.2 == 0.3` in Python?

✓ False

Floating-point arithmetic is inexact; `0.1 + 0.2` evaluates to `0.30000000000000004`, not exactly `0.3`.

6. What Python error handling construct should you master for robust HackerRank certification solutions?

✓ try/except blocks

try/except blocks allow graceful handling of runtime errors, which is tested in problems that require input validation or safe operations.

🎯 Free HACKERRANK Practice Tests

Built-in Functions and Lambdas · 7 questions Credential Overview · 7 questions File I/O and Exception Handling · 7 questions Control Flow and Looping · 7 questions Preparation Tips · 7 questions Python Data Structures & Algorithms · 7 questions Python Data Structures & Algorithms · 7 questions Python Data Structures & Algorithms · 7 questions Functions and Modularity · 7 questions File I/O and Exception Handling · 7 questions

📖 HACKERRANK Guides & Articles

Your HACKERRANK Study Path

1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

🃏 HACKERRANK Flashcards (502)🏆 HACKERRANK Exam Simulation

What Practice Test Geeks adds beyond an AI chat for Hackerrank

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

A timed, full-length Hackerrank mock exam — 45 questions in 90 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
A fixed Hackerrank question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
A printable Hackerrank cheat sheet you can print or save as a PDF.
Hackerrank flashcards built from the same question bank.
Free Hackerrank practice tests with the correct answer shown after each question.

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