EY Global Delivery Services ( EY GDS) Senior Technical Lead Interview Questions, Process, and Tips for Experienced

Q1. Array and databases questions
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Q1. Future about AI
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AI is rapidly evolving and has the potential to revolutionize various industries by automating tasks, improving efficiency, and enabling new capabilities.
• AI is being used in healthcare to improve diagnostics, treatment planning, and patient care.

• AI is enhancing customer service through chatbots and personalized recommendations.

• AI is revolutionizing transportation with self-driving cars and predictive maintenance.

• AI is ...read more
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Q1. Salary negotiations
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Medium Hacker rank questions 1. DP, 2. Medium, 3. Easy

Q1. Prepare well for technical round
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Q2. Past projects and situations handled in projects
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Q1. Explain SoLid principles
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SoLid principles are a set of five design principles for writing clean, maintainable, and scalable code.
• Single Responsibility Principle: A class should have only one reason to change.

• Open/Closed Principle: Classes should be open for extension but closed for modification.

• Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness...read more
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Q2. Explain Oops concept
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Oops concept stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
• Oops concept focuses on creating objects that contain both data and methods to manipulate that data.

• It allows for encapsulation, inheritance, and polymorphism.

• Encapsulation refers to the bundling of data with the methods that operate on that data within a single unit or object.

• Inheritance allows a cl...read more
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Q3. Introduce yourself
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Q4. Explain authentication process in API
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Authentication process in API involves verifying the identity of the user or application accessing the API.
• User or application sends a request to the API with credentials (e.g. username and password, API key, token)

• API server validates the credentials provided by the user or application

• If credentials are valid, API server generates a token or session ID and sends it back to the user or application

• User or application in...read more
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Q5. Explain dependency injection
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Dependency injection is a design pattern where components are given their dependencies rather than creating them internally.
• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing by providing mock dependencies.

• There are three types of dependency injection: constructor injection, setter injection, and interface injection.
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