Amazon OA (Amazon Coding Online Assessment — Mock) — Free Online Mock Test
An Amazon-style coding online-assessment mock — data structures, arrays/strings and algorithms, in test-case-style MCQ form. Amazon pairs the coding OA with a Work-Simulation and Leadership-Principles module in its real hiring; this mock drills the DS/algorithms core. No negative marking. · Official language: English.
Amazon OA exam at a glance
Amazon OA full-length mock tests
Attempt 50 full-length Amazon OA mock tests, each a distinct question set built on the real 34-question, 85-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.
Amazon OA key facts & eligibility
| Conducting body | Format modelled on Amazon’s software-engineering coding online assessment (an original practice board — not affiliated with, authorised by, or an official test of Amazon) |
|---|---|
| Official website | amazon.jobs ↗ |
| Mode | A timed, test-case-style coding assessment practised in MCQ form — modelled on the online-assessment round in Amazon’s hiring. |
| Frequency | Practise on demand — the real online assessment is scheduled per Amazon hiring pipeline. |
| Scoring & marking | This mock drills the data-structures-and-algorithms core of Amazon’s coding OA — data structures, arrays/strings and algorithms — as complexity, output-prediction and algorithm-choice questions, with no negative marking. Amazon’s real online assessment also includes a Work-Simulation module and a Leadership-Principles / Work-Styles assessment, which this mock does not attempt to reproduce. |
| Score validity | Each employer’s online-assessment result applies within its own hiring cycle. |
| Language | English. |
Who is eligible for Amazon OA?
Amazon’s software roles target students and graduates of computer-science and allied degrees, with skill-first pipelines common; there is no bar to practising the format here. Verify the specific role on amazon.jobs.
Last verified August 2026 against Amazon Jobs. Always confirm current details on the official website before you register.
Amazon OA section breakdown
The Amazon OA mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
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Data Structures
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Arrays & Strings
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Algorithms & Dynamic Programming
Amazon OA scoring & marking scheme
Strategy: Amazon OA has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: Amazon OA (out of 34).
How Amazon OA is conducted
- Mode
- Test format
- Backtracking
- Mark for review
Amazon OA time strategy
With 34 questions in 85 minutes, you have about 150 seconds per question on average. Successful candidates aim for the following pacing on each section:
- Data Structures
- Arrays & Strings
- Algorithms & Dynamic Programming
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
Amazon OA topics covered
Across the 50 Wrexa Edge variants of Amazon OA, the following topics appear most often (sample distribution from one variant):
Data Structures
- DSA - Stacks · 9
- DSA - Linked Lists · 3
Arrays & Strings
- DSA — Prefix Sum · 9
- DSA — Sliding Window · 2
- DSA — Matrix · 1
Algorithms & Dynamic Programming
- DSA - Binary Search · 8
- DSA - Divide and Conquer · 2
Amazon OA difficulty calibration
Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.
An Amazon-style coding online-assessment mock — data structures, arrays/strings and algorithms, in test-case-style MCQ form. Amazon pairs the coding OA with a Work-Simulation and Leadership-Principles module in its real hiring; this mock drills the DS/algorithms core. No negative marking. · Official language: English.
Verified content — Wrexa Edge's Amazon OA bank has been deeply curated with real exam-aligned content (estimated 62% syllabus coverage).
How Wrexa Edge prepares you for Amazon OA
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Amazon OA study plan
A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.
- Linked lists, stacks, queues, trees, heaps, tries
- Per-structure operation costs
- Best-structure-for-scenario
- Arrays/strings, hashing, two pointers
- Sorting, searching, recursion, greedy, DP
- Complexity for every solution
- Prepare STAR stories for each Leadership Principle
- Ownership, dive-deep, bias for action
- Amazon adds a Work-Simulation module
- Full-length timed OAs
- Fix the weakest area
- Rehearse behavioural answers
Where Amazon OA can take you
A strong Amazon OA result opens up these careers and higher-study paths:
- SDE I (Amazon)
- Any product-company SWE role
Best books & official prep for Amazon OA
Official practice: Drill data structures and algorithms to reflex, and separately prepare Amazon’s Leadership Principles with specific STAR stories for the behavioural stages.
Frequently asked questions
- What is the Amazon OA exam pattern?
- Amazon Coding Online Assessment — Mock contains 34 questions across 3 sections: Data Structures, Arrays & Strings, Algorithms & Dynamic Programming. Total duration is 85 minutes (about 150 seconds per question).
- Does Amazon OA have negative marking?
- No — Amazon OA has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is Amazon OA scored?
- Scaled score range: 0 to 34. Amazon OA (out of 34).
- How can I practise Amazon OA online for free?
- Wrexa Edge gives you 3 free full-length Amazon OA mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.
- What is the difficulty level of Amazon OA?
- Amazon OA is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. An Amazon-style coding online-assessment mock — data structures, arrays/strings and algorithms, in test-case-style MCQ form. Amazon pairs the coding OA with a Work-Simulation and Leadership-Principles module in its real hiring; this mock drills the DS/algorithms core. No negative marking. · Official language: English.
- How long is the Amazon OA exam?
- Amazon OA runs for 85 minutes total across 3 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in Amazon OA?
- Amazon OA is split into: Data Structures, Arrays & Strings, Algorithms & Dynamic Programming. Each section is timed and weighted separately. An Amazon-style coding online-assessment mock — data structures, arrays/strings and algorithms, in test-case-style MCQ form. Amazon pairs the coding OA with a Work-Simulation and Leadership-Principles module in its real hiring; this mock drills the DS/algorithms core. No negative marking. · Official language: English.
- What tools or aids are allowed during Amazon OA?
- No special tools are required.
- Is the Amazon OA test adaptive?
- No — Amazon OA is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many Amazon OA mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct Amazon OA variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 1700 unique practice questions in the real test-day interface.
- Is there a free Amazon OA test series 2026?
- Yes. The Wrexa Edge Amazon OA test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
- Are Amazon OA previous year question–style papers included?
- Every Amazon OA mock is modelled on the official exam pattern and the style of previous years' papers — the same 34-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
- Which is the best free Amazon OA mock test online?
- Wrexa Edge's Amazon OA mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.
- Can I take the Amazon OA mock test on mobile?
- Yes. Amazon OA mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.
- What is the Amazon OA syllabus?
- The Amazon OA syllabus maps to its 3 sections: Data Structures, Arrays & Strings, Algorithms & Dynamic Programming. Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.
- What is the eligibility for Amazon OA?
- Amazon’s software roles target students and graduates of computer-science and allied degrees, with skill-first pipelines common; there is no bar to practising the format here. Verify the specific role on amazon.jobs. Wrexa Edge focuses on realistic Amazon OA practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.
- When is the Amazon OA exam and how should I prepare?
- Official Amazon OA exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free Amazon OA mocks with instant scoring so you can track your readiness week by week.
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