Google OA Questions 2021: What Candidates Actually Saw
Last updated: May 2026
35+ Google online assessment questions reported by candidates who took the OA in 2021. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Google OA Format in 2021
The Google online assessment has followed a consistent format across multiple hiring cycles. Based on 2021 reports in the database, candidates typically see 2 to 3 algorithmic coding problems delivered through a proctored online platform (most commonly HackerRank). Some roles include additional behavioral or work-simulation components after the coding section.
Time limits reported by candidates range from 70 to 110 minutes for the full assessment. The coding problems are auto-graded, so edge case handling and runtime efficiency both matter. Partial credit is available on some platforms if your solution passes a subset of test cases.
Real Google OA Questions from 2021
Google OA
I have given Google Online Coding Challenge recently. There were 2 questions 1) First one was largest element from here: https://leetcode.com/discuss/interview-question/887761/google-swe-intern-oa-sea (20 points) 2) https://leetcode.com/discuss/interview-question/889942/any-idea-how-to-solve-this-problem-i-just-bombed-it-in-an-interview (30 points) 10 on 10 testcases passed for...
Interview Experience - (Google, Amazon, Facebook, Uber, SnapChat, Goldman Sachs, Intuit)
Hello I would like to share my expereince in interviews. I attended most of the top tech companies. 1.SnapChat(Oct 2020) 2.Google(Nov 2020) 3.Amazon(Oct, Nov 2020) 4.Uber(Dec 2020,Jan 2021) 5.Facebook(Feb 2021) 6.Goldman Sachs(Feb, March 2021) 7.Intuit(Feb, March 2021) 1.SnapChat,...
Google | OA | New Grad | U.S.A
I took the OA and the questions were the same as the ones posted in Google questions. 1. split strings 2. Amplitude
Google OA For FTE
Google OA for FTE. 1) Question related to prefx sums(Easy). 2) Given a tree and values(B[i]) for each node in the tree, find for every node, the least non-negative integer that does...
VMWare Phone interview (experienced)
1 hour phone interview with VMWare before thanksgiving for Sr. role. question on lowest common ancestor of two nodes #236. I think interviewer was thinking the version where both nodes...
Snap, Google, Palantir | Software Engineer | May 2021 [Offer, Offer, Offer]
Background Info Status: Senior Software Engineer, BS CS Position: Senior Software Engineer at a Startup Location: Europe Date: May, 2021 --- Intro Hi everyone! I have finally "completed" my journey after several interviews at multiple companies and...
Google/FB/Amazon/Apple/Indeed | Reject/Reject/Offer/Offer/Offer
Hi all, The leetcode community has given me so much over the past couple of years so I think it\u2019s my time to give something back. If you want to get...
NAVI | SDE-1 | Bangalore | November 2021 | Accept
Current status: Final year UG CS student Tier-1 College (Darr ka Mahol hai) About :Navi Technologies (erstwhile known as BACQ) is founded by Sachin Bansal & Ankit Agarwal to build consumer-centric and...
Oracle(Offer) | Google (Reject) | Amazon (Offer)
Status: Member Technical Staff, Product Based company in Chennai Education : Bachelors in Computer Science, Tier 3 College Experience : 5+ Position: SDE2 at Amazon Location: Chennai Date: Nov 2021 Previous Compensation : 20 LPA LC Solved...
Zeta | SDE-2 | Bangalore | Nov 2021 [Reject]
YOE: 2.5 years Current position: SDE-2 at mid sized public company There was no phone screen or OA round. Recruiter direclty scheduled the interview rounds. First Round (1 hr) [DS + Algo] 2 questions...
Google L5 | Twitter SSE | LinkedIn SSE | FB E5 | Uber SSE | MS SSE
Finally, it\'s my time to contribute something back to this community. I hope my interview experience helps and motivates others who are preparing or in the process of interviewing. Keeping...
Facebook [Reject] | Amazon [Reject] |Google [Reject] | Oracle [Reject] |Microsoft [Offer]
Background: \tBTech in Information Technology from one of the known colleges in India Experience : Around 13 years of experience in Service industry. I worked with many different companies and...
SDE2 | Coinbase | India | Offer
Karat Interview (1 hour) 1. Questions on designing Facebook likes feature, Best load balancing algorithm for google docs where millions of users are editing millions of documents simultaneously (same document can...
Deutsche Bank | SDE | India | Dec 2021 [Selected]
Eligibility College: Premium Tier 1 college Branch : Open To all (No branch bias at all) (B.Tech + idd) CGPA: 7 >Online Test There were total 3 questions. (3dsa) Platform: HackerEarth Time: 90mins Q1 Simple Two lines question...
Zomato | SDE | India | December 2021
This is an On-campus new grad hiring from tier 1 college. Round 1: This is an online assessment round consisting of 4 DSA problems of medium-hard range of leetcode. The duration...
Yelp | London | Offer
Status: 2 Years experience Position: IC2 at Yelp Location: London [Remote] Date: November 2021 Process is - Recruiter Call - Online Test - Phone Screen - Onsite [Virtual] - Offer Overall this process...
Google, Microsoft, Adobe [Offer] | Amazon, Bloomberg, Facebook, Uber [Reject]
Hello Leetcode Community. I wanted to share my year long journey of learnings, interviews, rejections and offers. Background I was working in a tier-2 product based company and decided to give a...
Facebook (offer) | Amazon (offer) | Google (reject)
Background: PhD from a US medical school and BS from a non-US school. No CS background; good coding skills in Matlab and Python; enrolled in an online course on data...
Amazon | SDE2 | NJ | July 2020 [Offer], Google | L5 | NY | Jan 2021 [Offer]
YOE: 10 years Position: equivalent to Google\'s L4.5 in a Silicon giant tech company TLDR: I only reveal a little about interview questions. I read papers in preparing system design. Amazon: Online OA and followed...
Amazon SDE 2 [Reject] | Google L4 [Reject] | Facebook E4 - [Offer] | My journey
Hello Guys, It\'s time to give back to the community. I want to share my incredible journey to Facebook. In 2020 January I started learning algorithms and data structures from ground...
Topic Breakdown (2021 OA)
Topics reported by candidates who took the Google OA in 2021:
Difficulty Breakdown (2021 OA)
26
easy
2
hard
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the Google OA
The Google OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Focus on the topic clusters that appear most in Google OA reports: dynamic programming, graphs, arrays, and strings make up the majority of reported problems.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review 2021 OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the Google OA look like in 2021?
Based on 2021 candidate reports, the Google OA typically includes 2 to 3 coding problems and runs 70 to 110 minutes. Topics lean toward dynamic programming, graphs, arrays, and strings. Some roles include a work simulation section after the coding component.
How long is the Google OA?
Most candidates report 70 to 90 minutes for the coding component. Roles with additional work simulation sections extend the total time to 110 to 150 minutes. Check your invitation email for the exact time allocation for your specific role.
What platform does Google use for the OA?
Google uses HackerRank or its own proprietary platform depending on the role and hiring cycle. Your invitation will specify the platform. Both platforms support multiple languages including Python, Java, C++, and JavaScript.
Are these real Google OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other Google OA Years
Related: Google OA Hub · Google All Questions · All OA Questions · Data Sources