Alcon Lead Engineer Interview Questions and Answers

.Net basics and Logical Aptitude

Q1. SW Engineering Fundamentals, .Net Basics, Design Principles, Patterns, WebAPIs, Javascript
Add your answer
Q2. What are solid principles
Ans. 
SOLID principles are a set of five design principles for writing maintainable and scalable software.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.

• I - Interface Segregation Principle: Clients sho...read more
Answered by AI
Add your answer
Q3. Is Javascript multi-threaded
Add your answer
Q4. What is webpacks in Javascript
Ans. 
Webpack is a module bundler for JavaScript applications.
• Webpack takes modules with dependencies and generates static assets representing those modules.

• It can handle various file types such as JavaScript, CSS, and images.

• Webpack allows for code splitting, lazy loading, and hot module replacement.

• Plugins can be used to extend its functionality.

• Commonly used with frameworks like React and Angular.
Answered by AI
Add your answer

Q1. Logical Coding question, Design Principles, System Design
Add your answer
Q2. String based coding test
Add your answer
Q3. Design Patterns and their real-time usage
Ans. 
Design patterns are reusable solutions to common software problems.
• Design patterns help in creating maintainable and scalable code.

• Some commonly used design patterns are Singleton, Factory, Observer, and Decorator.

• Singleton pattern ensures that only one instance of a class is created.

• Factory pattern provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will ...read more
Answered by AI
Add your answer
Q4. IOC principle use cases
Add your answer

Q1. WebApi, .Net Core, Entity Framework, Linq
Add your answer
Q2. Asked to develop a web api
Add your answer
Q3. Write a Linq expression to fetch the desire results
Ans. 
Linq expression to fetch desired results
• Use 'Where' to filter data based on conditions

• Use 'Select' to project data into desired format

• Use 'OrderBy' or 'OrderByDescending' to sort data

• Use 'Skip' and 'Take' to implement pagination
Answered by AI
View 1 more answer
Q4. Configure the Entity Framewok to connect with database
Ans. 
To configure Entity Framework to connect with a database, follow these steps:
• Install Entity Framework package using NuGet

• Create a DbContext class that inherits from DbContext

• Add a connection string to the app.config or web.config file

• Use the DbContext to query the database
Answered by AI
Add your answer

Q1. Fitment round with all behavioral questions
Add your answer
Q2. Which is the difficult project and why did you say so
Ans. 
The most difficult project I worked on was the development of a complex software system for a large financial institution.
• The project involved integrating multiple legacy systems with modern technologies.

• There were numerous technical challenges, such as ensuring data consistency and security across different platforms.

• The project also had tight deadlines and high stakeholder expectations.

• Managing a large team and coord...read more
Answered by AI
Add your answer
Q3. How to handle a toughest boss
Ans. 
Handling a tough boss requires effective communication, adaptability, and maintaining professionalism.
• Maintain open and honest communication with your boss

• Adapt to their management style and preferences

• Focus on delivering high-quality work and meeting deadlines

• Seek feedback and actively work on improving

• Maintain professionalism and avoid personal conflicts

• Build a support network within the organization

• Document and keep...read more
Answered by AI
Add your answer
Q4. How did you resolve conflicts within team
Ans. 
I resolved conflicts within the team by promoting open communication, active listening, and finding common ground.
• Encouraged team members to express their concerns and opinions

• Actively listened to each team member's perspective

• Facilitated open discussions to find common ground and reach a consensus

• Implemented a conflict resolution process to address conflicts in a timely manner

• Mediated conflicts between team members by...read more
Answered by AI
Add your answer