Infosys UI Lead Interview Questions and Answers

Q1. What is your Understanding of Design control process and what are PLM you have used.
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Q2. Share your knowledge in writing a protocol and procedure for medical devices.
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Q3. What is NPD(New product development)
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Q4. Share experience on lab testing methods, material, procedure etc.. of Ethicon Sutures and needle .
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Q5. What is accelerated ageing process in storage chamber of suture testing lab.
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Q6. What about complaint handling process in BD (Becton Dickinson).
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Program for duplicate removal and sorting

Q1. Technical in detail
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Q1. All AWS related questions
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Q2. Automation questions specific cloud automation using Python
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Q1. Overall infrastructure handling & Trouble shooting
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Q2. How you perform as Individual contributor/ get team lead opportunity how you handle it
Ans. 
I excel as an individual contributor and transition smoothly into a team lead role by leveraging my technical expertise and leadership skills.
• Demonstrate strong technical skills and consistently deliver high-quality work as an individual contributor.

• Proactively seek opportunities to mentor and guide team members, showcasing leadership potential.

• Communicate effectively with team members, fostering collaboration and driv...read more
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Q1. How do you manage the requirements of stakeholders?
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I manage stakeholder requirements through effective communication, collaboration, prioritization, and documentation.
• Regular communication with stakeholders to understand their needs and expectations

• Collaboration with stakeholders to gather and prioritize requirements

• Documenting requirements clearly and accurately to ensure alignment and traceability

• Using tools like requirement management software to track and manage re...read more
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Q1. What is the process for writing non-functional requirements?
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The process for writing non-functional requirements involves identifying performance, security, usability, and other quality attributes.
• Identify the quality attributes that are important for the project

• Define specific criteria for each quality attribute

• Ensure that the requirements are measurable and testable

• Document the non-functional requirements in a clear and concise manner
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Q1. Given UI task display like display boxes side by side in desktop screen and one after the other in mobile screen using media queries?
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Q2. Explain difference between authorization vs authentication?
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Authentication verifies a user's identity, while authorization determines what a user can access.
• Authentication confirms a user's identity through credentials like username and password.

• Authorization controls access to resources based on the authenticated user's permissions.

• Example: Logging into a website (authentication) and then being able to view/edit specific pages based on your role (authorization).
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Q3. How to render list in react? Also explain difference between state vs prop in react?
Ans. 
To render a list in React, use map() function to iterate over an array of data and return a list of components. State is mutable data managed within a component, while props are immutable data passed from parent to child components.
• To render a list in React, use map() function to iterate over an array of data and return a list of components.

• Example: const items = ['item1', 'item2', 'item3']; items.map(item =>

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Q1. What are the webpage optimization techniques? How to check webpage optimization? In lighthouse optimization reports , how to fix issue related render blocking scripts?
Ans. 
Webpage optimization techniques include minifying CSS and JS files, optimizing images, using asynchronous loading for scripts, and reducing render-blocking scripts.
• Minify CSS and JS files to reduce file sizes and improve loading times.

• Optimize images by compressing them and using the correct file format (e.g. JPEG for photographs, PNG for graphics).

• Use asynchronous loading for scripts to prevent them from blocking the ...read more
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Q2. Write scss code nested li element by applying background color 2 element and also use mixins?
Ans. 
Use SCSS to apply background color to nested li elements and utilize mixins.
• Use nesting to target the li elements within a parent element

• Apply background color to the 2nd li element using the :nth-child() selector

• Define and use mixins to reuse styles across the codebase
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Q3. How to fix cumulative layout shift issues?
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To fix cumulative layout shift issues, ensure all images and media have dimensions specified in HTML, use CSS aspect ratio boxes, and prioritize loading critical resources.
• Specify dimensions for all images and media in HTML to prevent layout shifts.

• Use CSS aspect ratio boxes to reserve space for images before they load.

• Prioritize loading critical resources to avoid sudden layout changes.
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Q1. Remove duplicates in an array
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Use a hash set to remove duplicates in an array of strings
• Create a hash set to store unique elements

• Iterate through the array and add each element to the hash set

• Convert the hash set back to an array to get the unique elements
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Q2. What is react virtual DOM
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React virtual DOM is a lightweight copy of the actual DOM, used for efficient updates and rendering in React applications.
• Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.

• React uses virtual DOM to efficiently update and render components without directly manipulating the actual DOM.

• When changes are made to the virtual DOM, React calculates the most efficient way to update the act...read more
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Q3. React hooks with example
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React hooks are functions that let you use state and other React features without writing a class.
• React hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• useContext() is a hook that allows you to use the con...read more
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Q1. JAVAscript related,es6 api calls
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Q2. UI related css html questitions
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Javscript oop related coding

Q1. He asked Java related questions and java 8 coding questions.
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Q2. Coding questions
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Q1. Project related questions and asked to build api's from the scratch.
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Q1. Java and projects questions
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Q1. Java and project questions
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