Senior Platform Associate L1 Interview Questions and Answers

Bean Lifecycle and scope in SpringBoot refers to the creation, initialization, and destruction of beans along with their visibility and accessibility.

• Bean Lifecycle consists of bean creation, initialization, and destruction phases.

• Bean Scope determines the visibility and accessibility of beans within the application context.

• Common bean scopes in SpringBoot include Singleton, Prototype, Request, Session, and Application.

Program to remove duplicates from an array of strings

• Iterate through the array and store unique elements in a new array

• Use a set data structure to efficiently remove duplicates

• Return the new array without duplicates

HashMap in Java 8 uses an array of linked lists to store key-value pairs.

• HashMap uses an array of linked lists to handle collisions

• Each key-value pair is stored in a Node object within the linked list

• Hashing algorithm is used to determine the index of the array where the key-value pair is stored

Microservices are a software architecture pattern where applications are built as a collection of small, loosely coupled services.

• Microservices promote modularity and scalability.

• Each microservice is responsible for a specific business capability.

• Communication between microservices is typically done through APIs.

• Microservices can be developed and deployed independently.

• Examples of microservices include Netflix, Amazon, and Uber.