Recently, many students have gotten interviews for technical positions at Amazon, and the first step in getting an offer is to pass an Online Assessment (OA for short).PROGRAMHELP Team In order to help you understand Amazon's OA process, this article will detail the structure of Amazon's OA, common exams, and some practical advice on preparing for the exam.
Overview of the interview process
- OA Direct Offer
- OA + 1 round of interviews, got an offer.
- OA + 2 rounds of interviews, got the offer.
- standard process: OA → Electric Interview → 4-5 rounds Onsite → Offer
According to Amazon's internal sources, OA performance directly affects subsequent interview rounds:
- Top performers: may go straight to a 30-minute OA Review
- Average performance: into the standard Virtual Onsite
- Poor performance: possible elimination
01. Definition of OA and common test elements
Amazon's OA is typically used to screen and evaluate candidates'technical level,learning abilityas well as otheroverall quality.
- technical post: Focus on algorithmic and programming skills
- Data positions: Focus on algorithms and data processing
- Other Tests: Intelligence tests, personality tests, etc. to assess thinking styles and problem solving skills
02. Amazon OA Real Questions
Here are some examples of common OA programming questions:
Topic 1: Sum of Two Sums
descriptive: Given an array of integers nums and a target value target, please find the two numbers in that array whose sum is the target value and return their subscripts.
request: Each input corresponds to a unique answer only.
Topic 2: Effective brackets
descriptive: Given a file that contains only (, ), {, }, [ respond in singing ] to determine if the string is valid.
- Left parentheses must be closed with right parentheses of the same type
- The left bracket must be closed in the correct order
Topic 3: Longest substring without repeated characters
descriptive: Given a string, find the length of the longest substring that does not contain repeated characters.
03. Frequently asked questions and recommendations for OA preparation
Q1: Do I need any additional materials?
No additional materials are required, just a computer with internet access. Calculators and pen and paper are allowed for some interviews and will be communicated at the time of testing.
Q2: Is specific prior knowledge required?
In addition to algorithmic and programming skills, OA also examines basic math and logical reasoning. It is recommended that you learn about common question types and practice them in advance for the position you are applying for.
Q3: How and where do I practice?
- Official Career page for job postings
- Communities like Glassdoor, LeetCode Discuss, and others share previous years' questions and experiences
Q4: What if OA does not perform well?
Amazon usually offers up to 3 rounds of OA opportunities, and you still have a chance to get into an interview if you do well in subsequent rounds.
Q5: Are there multiple rounds of assessment for OA?
Yes, there are usually 3 rounds of OA and each round has about 5 days to complete. If you don't do well in one round, you can still move on to the next.
Q6: What happens if I extend the OA completion deadline?
Although extensions of OA completion deadlines may be requested, recruitment is on a rolling basis. Extensions may result in missed opportunities and it is recommended that each round be completed as early as possible.
concluding remarks
The PROGRAMHELP team consists of 7 top technical elites from world-class universities such as Oxford, Princeton, and Peking University, and 3 members who have practical experience in first-tier Internet companies such as Amazon, Alibaba, and ByteDance. We not only help candidates master the strategies for solving high-frequency questions, but also provide support in real interviews through real-time monitoring and silent prompts to ensure that answers are complete, clear and logical.
With the support of PROGRAMHELP, many candidates have successfully secured offers from their favorite companies, and if you are in need of interview assistance or interviewing services, please feel free to contact us at Contact Us!
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