Beginners FAQs on HackerRank assessments

• HackerRank Tests - A coding and technical assessments platform with a built-in code execution environment which supports 35 different programming languages.
• CodePair - A video-based interactive coding interviews platform to conduct face-to-face interviews with Candidates located remotely.

If you've received a HackerRank Test invite from your hiring company, log in to the Test and attempt the Questions within the given time limit.

If you've received an interview invite on HackerRank's CodePair, click the interview link at the scheduled time to participate in a video-based interactive coding interview. You can expect one or more interviewers to join the interview discussion and present you with coding Questions to solve and display the output.

See the Front-end, Back-end, Full-stack IDE - FAQs topic to know more.

1. Install and use the latest versions of Google Chrome or Firefox browsers to take your HackerRank assessments. See: Browser recommendations for the best experience
2. Ensure that you have an uninterrupted internet and power supply to avoid problems during the assessments. See: Loss of connectivity during assessments
3. Your Tests can be proctored. We recommend using a web camera-enabled computer to take the Test. See: Taking Proctored Tests
4. Ensure that you do not engage in any plagiarism or other forms of malpractices during HackerRank's assessments. See: Preventing malpractices in HackerRank's assessments

If you have an upcoming CodePair interview, see the CodePair interview preparation checklist for Candidates topic for detailed information.

See the HackerRank Environments page to know the code execution time and memory limits set on our platform.

Refer to the hiring company's invite to know the scheduled Test period and the duration to complete a Test. You must have attempted the Test within this time.

Example: The following HackerRank Test invite shows that there is a scheduled 5-day period during which a Candidate can attempt the Test anytime. Upon login, a Candidate will have 60 minutes to attempt the Questions and submit the answers.

You can also check the allocated Test time duration indicated in the login page.

1. You must receive an email invite for a HackerRank Test.
2. Open the invite and click Start Challenge or click the Test link provided in the email.
3. Sign up for the HackerRank Community User account and log in. Alternatively, log in using the particular credentials provided in the invite.
4. We recommend using Firefox or Google Chrome browsers for a good experience.

See: Logging on to HackerRank Tests for detailed information.

1. You must receive a CodePair session link from your interviewer.
2. Click the link at the scheduled interview time. 
3. On the landing page, enter your name in the Candidate Login section and click Join as Candidate.
4. We recommend using Firefox or Google Chrome browsers for a good experience

See: Logging in to a CodePair interview session for detailed information.

To limit plagiarism and keep Candidates' focus on the Test screen, the hiring company may enforce taking HackerRank Tests in browser full-screen mode. You can't take this test without the full screen. However, if you wish to navigate to another window/browser tab during the test, you can do so by pressing ESC or ALT+TAB.

HackerRank will capture the number of times this was done and the duration you were out of the full screen. This will be visible to the company you apply to.

In the Test interface, click the  icon to see:

1. Instructions - The instructions provided for the Test.
2. Interface - An overview of the HackerRank Test interface and different Question types.
3. Coding environment specifications - Time and memory limits for code execution in each programming language.
4. FAQs - Answers to some frequently asked questions.

During a Test or interview, click the editor's  <Settings> icon and select "Quick Tour" to familiarize yourself with the coding interface.

HackerRank supports different types of Question across multiple programming languages. Your Test will include Questions based on the role you've applied for and the skills required in the Candidates being assessed for the role

Example: If you've applied for a Front-end Developer role, you can expect coding and technical questions related to Front-end software development using Angular, React or other frameworks.

See Question types in HackerRank.

Yes, you can revisit Questions, modify submitted answers and resubmit them any number of times before the Test ends.

Sometimes, your Test can have Questions divided into different time-bound sections, and you cannot revisit a section when its allocated time has elapsed.

See: Submitting your answers and changing submissions

While taking a Test, the HackerRank interface periodically auto-saves your answers and code. If your Test timed-out before you could submit an answer, HackerRank automatically submits your last saved answers in the Test.

See: Answer auto-save in your Tests

The company which sent you the HackerRank Test invite owns your Test submissions and reports. It’s their discretion to permit a reattempt for a particular Test.

If you wish to retake the Test, we recommend that you contact the concerned recruiter and request for a reinvite.

• For a quick reference, view the Technical FAQs topic.
• HackerRank's Knowledgebase offers support articles for Candidates. You can refer to the relevant articles for information.
• For persistent issues, contact our support team at support@hackerrank.com.