Amazon Development Centre India Interview Questions and Answers for Experienced

Q1. Mechanical maintenance
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Q2. Utility
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Q1. Mechanical maintenance incharge
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Q2. Spray Dryer
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Q1. What is LSMW and and its method
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LSMW stands for Legacy System Migration Workbench, a tool used in SAP for data migration.
• LSMW is used to migrate data from legacy systems into SAP.

• It provides a step-by-step guide to map data fields, convert data formats, and upload data.

• LSMW uses different methods like Direct Input, Batch Input, BAPI, and IDoc for data migration.

• It is commonly used by SAP consultants for data migration during system implementations or...read more
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Q2. What is p2p cycle
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P2P cycle stands for Procure to Pay cycle, which is the process of purchasing goods or services from a vendor and making payment for them.
• P2P cycle involves requisitioning, purchasing, receiving, invoicing, and payment processes.

• It starts with creating a purchase requisition, followed by creating a purchase order.

• Goods or services are received and inspected, then an invoice is received and matched with the purchase ord...read more
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Java coding question with moderate level

Q1. How to test a s/w for Lift
Ans. 
Testing a lift system involves multiple steps to ensure its functionality and safety.
• 1. Verify the lift system's basic functionality such as going up and down smoothly.

• 2. Test emergency stop functionality to ensure safety measures are in place.

• 3. Check for proper alignment of doors and sensors to prevent accidents.

• 4. Conduct load testing to ensure the lift can handle its maximum capacity.

• 5. Test communication systems b...read more
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Q1. Previous projects
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I have worked on various projects involving test automation, performance testing, and quality assurance.
• Developed automated test scripts using Selenium WebDriver for web applications

• Conducted performance testing using JMeter to identify bottlenecks and optimize system performance

• Implemented quality assurance processes to ensure software meets requirements and standards
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Q1. Can you explain the difference between ==and === in java script, and when u would use each?
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In JavaScript, '==' checks for value equality, while '===' checks for both value and type equality.
• '==' performs type coercion, converting operands to the same type before comparison.

• Example: '5' == 5 evaluates to true because '5' is coerced to a number.

• '===' checks both value and type, so no coercion occurs.

• Example: '5' === 5 evaluates to false because one is a string and the other is a number.

• Use '==' when you want t...read more
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Q2. Explain the difference between controlled and uncontrolled components in React
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Controlled components manage form data via state, while uncontrolled components rely on the DOM for data handling.
• Controlled components use React state to manage input values. Example: <input value={this.state.value} onChange={this.handleChange} />.

• Uncontrolled components store their own state internally. Example: <input defaultValue='initial' ref={input => this.input = input} />.

• In controlled components...read more
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Q3. How do you ensure your web application Anna accessible and meet WCAG standards?
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I ensure web accessibility by following WCAG guidelines, conducting audits, and implementing best practices for inclusive design.
• Conduct accessibility audits using tools like Axe or Lighthouse to identify issues.

• Implement semantic HTML elements (e.g., <header>, <nav>, <main>, <footer>) for better screen reader support.

• Ensure color contrast ratios meet WCAG standards (e.g., 4.5:1 for normal text)...read more
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Q4. How do you handle state management in large scale frontend applications?
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Effective state management in large-scale frontend apps involves structured approaches, tools, and best practices for maintainability.
• Use a centralized state management library like Redux or MobX to manage application state consistently.

• Implement local component state for UI-specific data to avoid unnecessary global state updates.

• Utilize React's Context API for passing down state without prop drilling in deeply nested ...read more
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Q5. Con you the difference between useEffect useLayoutEffect and uselnsertionEffect in React
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useEffect, useLayoutEffect, and useInsertionEffect manage side effects in React, with different timing and use cases.
• useEffect: Runs after the DOM has been painted. Ideal for data fetching and subscriptions.

• Example: useEffect(() => { fetchData(); }, []);

• useLayoutEffect: Runs synchronously after all DOM mutations. Useful for measuring layout.

• Example: useLayoutEffect(() => { const rect = element.getBoundingClientRe...read more
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Shi**y aptitude and worst Recruitment process

Q1. Brief introduction about you
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Q2. What was your last drawn salary
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My last drawn salary was competitive and reflective of my experience and contributions to the team.
• I was earning $75,000 annually in my previous role.

• This salary was based on my 5 years of experience in the industry.

• I also received performance bonuses that could add up to 10% of my base salary.

• In addition, I had benefits such as health insurance and a retirement plan.
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Q1. Brief introduction about my self
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Dynamic team manager with over 8 years of experience in leading diverse teams to achieve operational excellence and drive project success.
• Proven track record in managing teams of up to 20 members, enhancing productivity by 30% through effective leadership.

• Skilled in conflict resolution, successfully mediating disputes to maintain team harmony and focus on goals.

• Experienced in project management, having led multiple pro...read more
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Q2. What was my last drawn salary
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Q3. Reason for looking for a change
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I'm seeking a job change to pursue new challenges, enhance my skills, and contribute to a dynamic team environment.
• Desire for professional growth: I want to take on more leadership responsibilities, similar to how I led a project that improved team efficiency by 20%.

• Seeking new challenges: My current role has become routine, and I'm eager to tackle complex problems, like the ones I faced in a previous role.

• Cultural fit...read more
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Q1. Brief introduction about myself
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Dynamic Team Manager with a passion for fostering collaboration and driving results through effective leadership and strategic planning.
• Over 5 years of experience in team management, leading diverse teams to achieve project goals.

• Implemented a new project management system that increased team efficiency by 30%.

• Skilled in conflict resolution, having successfully mediated disputes to maintain team harmony.

• Strong communic...read more
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Q2. Reason for leaving my last job
Ans. 
I left my last job to pursue new challenges and opportunities for growth that align with my career goals.
• I sought a role that offered more leadership responsibilities, as I am passionate about team development.

• The company was undergoing significant restructuring, which limited my ability to contribute effectively.

• I wanted to explore a different industry that aligns more closely with my long-term career aspirations.
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Q1. Last drawn salary
Ans. 
My last drawn salary was competitive and reflective of my experience and contributions to the team.
• I was earning $75,000 annually in my previous role.

• This salary was based on my 5 years of experience in the industry.

• I also received performance bonuses that could add up to 10% of my base salary.

• In addition, I had benefits such as health insurance and a retirement plan.
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Q2. Expectations interms of salary
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I expect a competitive salary that reflects my experience and the responsibilities of the Team Manager role.
• Research industry standards: For example, similar roles in our region typically offer between $70,000 and $90,000 annually.

• Consider my experience: With over 5 years in management, I believe a salary in the upper range is justified.

• Emphasize value: I aim to bring significant improvements in team performance and pr...read more
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Q1. What is provider?
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Provider is a state management solution in Flutter that allows for easy data sharing across the widget tree.
• Provider is part of the Flutter community and is widely used for state management.

• It uses InheritedWidget under the hood to efficiently propagate changes.

• You can create a Provider using the 'ChangeNotifier' class to notify listeners of changes.

• Example: 'ChangeNotifierProvider(create: (context) => MyModel(), ch...read more
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Q2. What is Grid view in flutter
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GridView in Flutter is a widget that displays items in a 2D array format, allowing for a flexible and responsive layout.
• GridView can be created using GridView.count() for a fixed number of tiles in the cross axis.

• Example: GridView.count(crossAxisCount: 2, children: [Icon(Icons.star), Icon(Icons.star)])

• GridView.builder() is used for dynamic lists where the number of items is not known beforehand.

• Example: GridView.builde...read more
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Q3. What is Widget in Flutter
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A Widget in Flutter is a basic building block of the user interface, representing a part of the UI.
• Widgets are immutable, meaning their properties cannot change once created.

• There are two types of widgets: StatelessWidget (no mutable state) and StatefulWidget (mutable state).

• Example of StatelessWidget: Text('Hello, World!') displays static text.

• Example of StatefulWidget: A checkbox that can be checked or unchecked, mai...read more
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