10+ Amazon Interview Questions and Answers

The question covers various topics related to software development and testing.

• SDLC stands for Software Development Life Cycle and is a process followed for software development.

• STLC stands for Software Testing Life Cycle and is a process followed for software testing.

• Agile is a software development methodology that emphasizes on iterative and incremental development.

• Different types of testing include unit testing, integration testing, system testing, acceptance testing, and ...read more

Yes, I have used Python scripts extensively in my testing.

• I have used Python scripts for automated testing of web applications.

• I have also used Python scripts for unit testing of backend code.

• Python's unittest module is particularly useful for this purpose.

• I have also used Python scripts for load testing and performance testing.

• Python's requests library is very helpful for testing APIs.

• I have also used Python scripts for data validation and data integrity testing.

A data lake is a storage repository that holds a vast amount of raw data in its native format, while a fact table contains quantitative data and metrics, and a dimension table contains descriptive attributes related to the facts.

• Data lake is a centralized repository for storing structured and unstructured data at any scale

• Fact table contains quantitative data and metrics for analysis, often related to business processes

• Dimension table contains descriptive attributes related t...read more

Yes, I have knowledge of Hadoop data warehouse.

• I have experience in designing and implementing Hadoop-based data warehouses.

• I am proficient in Hadoop ecosystem technologies such as HDFS, MapReduce, Hive, and Pig.

• I have worked with large-scale data processing and storage using Hadoop.

• I am familiar with data warehousing concepts such as ETL, data modeling, and data integration.

• I have used Hadoop to build data warehouses for various clients in the past.

Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.

• Objects encapsulate data and behavior

• Classes define the blueprint for objects

• Inheritance allows for code reuse and polymorphism

• Examples include Java, C++, and Python

Requirement traceability matrix is a document that links requirements throughout the development process.

• It is used to ensure that all requirements are met and tested.

• It helps in tracking the origin of each requirement and its status.

• It provides a way to verify that all requirements have been addressed in the final product.

• It can be created using tools like Excel or specialized software.

• Example: Requirement ID, Description, Source, Status, Test Cases

Processes are independent instances of a program, while threads are lightweight units within a process sharing resources.

• Processes have their own memory space, while threads share the same memory space within a process.

• Processes are heavier to create and manage compared to threads.

• Threads within a process can communicate more easily and efficiently compared to processes.

• Example: In a web server, each client connection can be handled by a separate thread within the same proces...read more

Composition is a strong relationship where the child object does not exist independently of the parent object, while aggregation is a weak relationship where the child object can exist independently of the parent object.

• Composition is a 'has-a' relationship, where the child object is part of the parent object.

• Aggregation is a 'has-a' relationship, where the child object is not part of the parent object and can exist independently.

• In composition, the child object is created an...read more

Jira bug marking scheme is crucial for prioritizing and tracking bugs.

• Use priority levels (e.g. Blocker, Critical, Major, Minor)

• Assign severity levels (e.g. High, Medium, Low)

• Utilize labels or tags for categorization (e.g. UI, Backend, Database)

• Include bug status (e.g. Open, In Progress, Resolved)

• Use custom fields for additional information (e.g. Steps to reproduce, Environment)