Amazon Qa Engineer Interview Questions

Good Questions To Ask Atthe End Of An Amazon Interview

How I cracked amazon’s QA interview? Interview Process and Tips

As your Amazon interview starts to wrap up, youll get a chance to ask the hiring manager some questions. Being ready for this moment is critical, as it allows you to assert your interest and learn valuable tidbits that can help you decide if the job is right for you. If you dont know what to ask, here are a few questions that can work in nearly any situation:

What qualities do your most successful employees have in common?

Can you describe a typical day in this role?

What defines success in this position?

What is the biggest challenge Amazon is facing today? How does this role help solve it?

What do you enjoy most about working for Amazon?

If you want some more examples, check out our article: questions you can ask during your interview.

What Do You Understand About Data Driven Testing

Data-Driven Testing is a software testing technique that stores test data in a table or spreadsheet format. Testers can use data-driven testing to enter a single test script that can run tests for all test data from a table and expect the test results to be returned in the same table. It’s also known as parameterized testing or table-driven testing.

Because testers usually have several data sets for a single test, Data-Driven Testing is critical. Creating different tests for each data set can be time-consuming. Data-driven testing allows data to be kept separate from test scripts, and the same test scripts can be run for multiple combinations of input test data, resulting in more efficient test results.

The above image depicts the process of data-driven testing. Test data is taken from a data file and tested on the application and then the produced output is compared with the actual output.

How To Prepare For A Qa Interview

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Why Do You Want To Work At Amazon / Why Have You Chosen Amazon

This is one of the first standard questions you will be asked at the HR interview session. But most people don’t have a great answer. We know that there is no right answer to this question, but the candidate must avoid general statements like “this is a great company.” If you want to say that, it is okay, but first, you have a great explanation to prove your point.

Here, we are providing some standard answers according to different career perspectives. Following are some best possible answers:

An Engineer answer:

I would like to work at Amazon because I think I can help the company open a new business opportunity in the area of home automation. . Since the Alexa division is working on home automation, I can extend my Master’s research project regarding home automation, smart meters and Big Data.

A Finance Manager’s Answer:

I would like to work at Amazon because it is one of the leading global online retailing companies with 136 billion USD Net Sales and is 12th on the Fortune 500. It is a fast-growing company and a pioneer in the internet retail sector, which has doubled its sales in the past four years. This is a place I would like to work because I know I would have a chance to utilize my capabilities.

A Sales Manager’s or Product Manager’s Answer:

I want to work for Amazon for the following reasons:

Describe How You Determine What Software Elements Or Pieces Require A Specific Amount Of Testing

This can be determined by figuring out the cyclomatic complexity. This technique is used to identify the three major questions we should be asking about the programs features: Is it testable? Is it understood by everyone? Is it reliable enough? Quality assurance engineers use this technique to determine what level of testing a particular feature requires and whether it is considered a high priority. If the cyclomatic complexity is a high number, the team would consider that particular functionality or part of functionality to be complex and difficult, so it should be figured out and assessed before anything else with in-depth testing. If the result of the cyclomatic complexity is low, I would conclude that functionality or functionality isnt as complex and doesnt require as much testing.

If One Of Your Closework Colleagues Stole A $1 Item What Would You Do

Shrinkage isa major concern for Amazon. As a result, many prospective employees especially those working in Amazon warehouses are going to face behavioralinterview questions that discuss how theyd react to theft.

Its important to note that the small value of the item in the question is meant to throw candidates off. A dollar may seem meaningless to a retail giants bottom line. But, if every person took a $1 item and turned a blind eye to others doing the same, it would add up quickly. As a result, theres only on correct answer. Luckily, its fairly short and sweet, so its easier to nail.

SAMPLE ANSWER:

Theft, in any amount, is against policy and is illegal, so it needs to be addressed. If I witnessed a colleague stealing, I would report the activity per Amazon corporate procedures.

Why Did You Decide To Become A Quality Assurance Engineer

You will receive many varying answers to this question from interviewees but look for particular statements in their answer. If the interviewee focuses on their passion for engineering and desire to be involved in all aspects of the products completion, that says a lot about the kind of engineer they are. They arent interested in manufacturing code or components of a product behind the scenes– they are invested in being hands-on during the project and are willing to lead a team.

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Describe The Differences Between Negative And Positive Testing

Negative testing is a testing technique that makes sure that the system works optimally in the case of any invalid inputs. For example, a user may enter invalid data into a text section. The application should return with a correct message, rather than a technical message the user will not comprehend. Positive testing determines that the system is working correctly and compare expected results with the actual testing results. Too often are negative testing scenarios not included in the determined product plan, so it is the duty of the quality assurance engineer to identify those negative scenarios and test for them.

Questions On Bias For Action:

Amazon QA Assessment Interview Question| Amazon Interview Guide

Provide an example of when you took a calculated risk.
Describe a situation when you took the initiative to correct a problem or a mistake rather than waiting for someone else to do it.
Tell me about a time when you required some information from somebody else, but they weren’t responsive. What did you do?

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What Is The Difference Between Performance Testing And Monkey Testing

Performance testing checks the speed, scalability, and/or stability characteristics of a system. Performance is identified with achieving response time, throughput, and resource-utilization levels that meet the performance objectives for a project or a product.

Monkey testing is a technique in software testing where the user tests the application by providing random inputs, checking the behavior of the application .

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Describe How To Test Strategies And Test Plans Differ From One Another

Test strategy is typically developed at a higher level by a project manager to demonstrate the team’s approach in testing for the entire project. The test plan is essentially implemented to demonstrate how the testing should be performed for an application or aspect of the product during the project timeline.

What Do You Understand About Traceability Matrix In The Context Of Quality Assurance

A Traceability Matrix is a document that connects any two baseline documents that require a many-to-many link to ensure that the relationship is complete. It’s used to keep track of requirements and make sure they’re being met on the present project.

The following are the three major components of a traceability matrix:

Forward Traceability: This matrix is used to determine whether the project is progressing in the appropriate direction and for the correct product. It ensures that each specification is applied to the product and that each specification is adequately tested. It connects test cases to requirements.
Backward or reverse Traceability: It is used to verify that the present product is still on track. The goal of this form of traceability is to ensure that we are not expanding the project’s scope by adding code, design features, testing, or other activities not stated in the requirements. It connects requirements to test cases.
Bidirectional Traceability: This traceability matrix ensures that all criteria are covered by test cases in both directions . It examines the impact of a change in requirements caused by a work product defect, and vice versa.

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What Are The Various Artifacts To Which You Refer When Writing Test Cases

Following are the various artifacts that we can refer to while writing test cases :

Specification of functional requirements.
Document that explains what the requirements are.
Wireframes.

It’s worth is a matter of opinion.
Its value remains constant over time.	Its value fluctuates over time.
Critical, Major, Moderate, Minor, and Cosmetic are the five levels of severity.	Priority is divided into three categories: low, medium, and high.

Describe How You Would Make Sure That Your Particular Testing Strategy Is Complete And Has Adequate Coverage

I would utilize requirement traceability matrices and test coverage matrices to determine that the test cases have excellent coverage. Test coverage matrices help the team figure out that the test cases properly satisfy all the test conditions within the requirement traceability matrices. Requirement traceability matrices will help the team determined that the conditions are optimal and that all requirements are sufficiently covered.

What Is Agile Testing And Why Is It Important

Amazon QAE II(Quality Assurance Engg) Interview Exp sharing(Testing Interview) Worth watch 4 Testers

Agile testing is a software testing process that evaluates software from the customers point of view. It is favorable as it does not require the development team to complete coding for starting QA. Instead, both coding and testing go hand in hand. However, it may require continuous customer interaction.

What Is The Purpose Of The End

End-to-end testing is a testing strategy to execute tests that cover every possible flow of an application from its start to finish. The objective of performing end-to-end tests is to discover software dependencies and to assert that the correct input is getting passed between various software modules and sub-systems.

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What Is A Senior Level Engineer Interview Like

When I interview a senior level engineer and I ask them a technical question, I expect a detailed response to the question. Many times, I get a high level response instead which, to me, signals that they dont have the experience Im looking for.

As an interviewee, I would try to add as much detail as possible when answering technical questions. When asked about automation, talk about the framework, share what methods you had to develop to work around issues with maintainability, discuss troubleshooting items you had to resolve, and so on.

The more details, the better. After all, the interviewer can stop you and redirect you if you get into too much detail.

Differentiate Between Functional And Non Functional Testing

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Functional Testing: Functional testing is a sort of software testing that involves comparing the system to its functional requirements and specifications. Functional testing guarantees that the application meets all of the criteria or standards as specified in the specification requirement sheet. This form of testing is focused on the end product of the processing. It focuses on simulating actual system utilisation but makes no assumptions about system structure.
NonFunctional Testing: Non-functional testing is a sort of software testing that verifies the application’s non-functional requirements. It determines whether the system’s behaviour is in accordance with the requirements. It examines all aspects that aren’t covered by functional testing.

The following table lists the differences between functional and non-functional testing:

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Technical Topics You Must Prepare For Amazon’s Interview

Programming Language

Amazon doesn’t ask for specialization in any specific programming language before attending an interview for a tech position. But you must be familiar with the syntax of languages such as C/C++, Java, Python, C# or Ruby. You should also know how memory management works or the most commonly used collections, libraries, etc.

Data Structures

This is the most important technical topic you should prepare for. Most of the work Amazon do involve storing and providing access to data in efficient ways. So you must have a good knowledge and understanding of the inner workings of common data structures and compare and contrast their use in various applications.

Algorithms

You must have the knowledge and a good understanding of the most common algorithms such as traversals, divide and conquer, breadth-first search vs. depth-first search etc. and make sure you understand the trade-offs for each. Please focus on the learning of implementation strategies of different classes of algorithms rather than memorizing them.

Coding

You may be asked to write syntactically correct code rather than pseudocode. Try to write code without an IDE. It would be best if you practiced coding with a pen and paper. It will be helpful at the time of the interview. The company prefers the candidate who writes scalable, robust and well-tested code. These are the main evaluation criteria for your code.

Object-oriented Design

Databases

Operating Systems

Internet Topics

What Is The Difference Between A Test Driver And A Test Stub

The test driver is a section of code that calls a software component under test. It is useful in testing that follows the bottom-up approach.

The test stub is a dummy program that integrates with an application to complete its functionality. It is relevant for testing that uses the top-down approach.

For example:

Lets assume a scenario where we have to test the interface between Modules A and B. We have developed only Module A. Here, we can test Module A if we have the real Module B or a dummy module for it. In this case, we call Module B as the test stub.

Now, Module B cant send or receive data directly from Module A. In such a scenario, weve to move data from one module to another using some external features called test driver.

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When Should You Stop The Testing Process

The testing activity ends when the testing team completes the following milestones.

Test case execution

The successful completion of a full test cycle after the final bug fix marks the end of the testing phase.

Testing deadline

The end date of the validation stage also declares the closure of the validation if no critical or high-priority defects remain in the system.

Code Coverage ratio

It is the amount of code concealed via automated tests. If the team achieves the intended level of code coverage ratio, then it can choose to end the validation.

Mean Time Between Failure rateMean time between failure refers to the average amount of time that a device or product functions before failing. This unit of measurement includes only operational time between failures and does not include repair times, assuming the item is repaired and begins functioning again. MTBF figures are often used to project how likely a single unit is to fail within a certain period of time