Lead Architect

Lead Architect Interview Questions and Answers

Updated 14 Apr 2024
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Q1. Java program to solve the problem from list of custom java objects having vehicle and manufacturer relationships

Ans.

Java program to solve vehicle-manufacturer relationship problem using custom objects

  • Create custom Java objects for vehicle and manufacturer

  • Establish relationship between them using appropriate data structures

  • Write a program to solve the problem using the objects and their relationships

  • Use object-oriented programming principles to ensure code reusability and maintainability

Q2. Collections and java 8 features and use case in detail

Ans.

Java 8 features like streams and lambdas make collections more efficient and concise.

  • Java 8 introduced streams which allow for functional-style operations on collections.

  • Lambdas can be used to define custom operations on collections.

  • The 'filter' method can be used to select elements from a collection based on a condition.

  • The 'map' method can be used to transform elements in a collection.

  • The 'reduce' method can be used to combine elements in a collection into a single value.

  • Th...read more

Q3. Core java concepts with example

Ans.

Core Java concepts include OOP, inheritance, polymorphism, encapsulation, and abstraction.

  • Object-oriented programming (OOP) is a programming paradigm based on the concept of objects.

  • Inheritance allows a class to inherit properties and methods from another class.

  • Polymorphism allows objects to take on multiple forms or behaviors.

  • Encapsulation is the practice of hiding data and methods within a class.

  • Abstraction is the process of hiding implementation details while showing only ...read more

Q4. What is Kalman filter?

Ans.

Kalman filter is a recursive algorithm used to estimate the state of a linear dynamic system from a series of noisy measurements.

  • Kalman filter combines predictions from a dynamic model with measurements to provide accurate estimates of the system's state.

  • It is widely used in various fields such as navigation, control systems, and signal processing.

  • Kalman filter is particularly useful when dealing with systems that have uncertain dynamics and noisy measurements.

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Q5. Think out of box, Cost saving, etc

Ans.

To think out of the box for cost-saving, we need to explore innovative solutions and leverage technology.

  • Explore alternative materials or suppliers

  • Implement energy-efficient systems

  • Automate processes to reduce labor costs

  • Utilize cloud computing to reduce infrastructure costs

  • Implement telecommuting to reduce office space costs

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