Senior Platform Associate L2

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Senior Platform Associate L2 Interview Questions and Answers

Updated 20 Oct 2024

Q1. Design pattern that you have used.

Ans.

I have used the Singleton design pattern in my previous projects.

  • Singleton pattern ensures a class has only one instance and provides a global point of access to it.

  • It is useful when you want to control the number of instances that can be created.

  • Example: Creating a Logger class that should have only one instance throughout the application.

Q2. Talk about Concurrent API

Ans.

Concurrent API allows multiple tasks to be executed simultaneously, improving efficiency and performance.

  • Concurrent API enables parallel processing of multiple requests at the same time.

  • It helps in reducing latency and improving overall system performance.

  • Examples include Java's CompletableFuture class for asynchronous programming and Node.js's cluster module for parallel processing.

Q3. Talk about SOLID Principles

Ans.

SOLID principles are a set of five design principles in object-oriented programming to make software designs more understandable, flexible, and maintainable.

  • 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: Objects of a superclass should be replaceable with objects of its subclasses without affecting the func...read more

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