🔥Topics To Cover

1. Core Java concepts:

• OOPs: Inheritance, Polymorphism, Encapsulation, Abstraction

• Multithreading: Thread creation and synchronization, Inter-thread communication, Deadlock, Race condition

• Collections: List, Set, Map, Iterator, Comparator, Concurrent Collections

• Exception handling: Try-catch-finally blocks, Exception hierarchy, Checked and Unchecked exceptions

1. Advanced Java concepts:

• Servlets: Request and Response objects, Servlet lifecycle, Request dispatching, Session Management

• JSP: JSP lifecycle, Expression Language, JSTL, Custom Tag Libraries

• JDBC: DriverManager, Connection, Statement, PreparedStatement, ResultSet

• JPA/Hibernate: Entity, EntityManager, PersistenceContext, Transactions, HQL

1. Spring Framework:

• Spring Boot: Autoconfiguration, Starter Dependencies, Spring Boot Actuator, Embedded Containers

• Spring MVC: Controllers, Views, Model, Binding, Validation

• Spring Data: Repositories, Query Methods, Pagination, Auditing, Transactions

• Spring Security: Authentication, Authorization, Security Filters, CSRF, CORS

1. RESTful web services and API design:

• HTTP Methods: GET, POST, PUT, DELETE

• Resource URI Design: URI structure, Resource representations, Query Parameters

• Message Formats: JSON, XML

• API Documentation: Swagger, API Blueprint

1. Microservices architecture and design patterns:

• API Gateway: Benefits, Architecture, Load balancing, Routing

• Circuit Breaker: Purpose, Implementation, Circuit Breaker Pattern

• Service Registry: Purpose, Benefits, Examples

1. Cloud-based solutions:

• AWS or Azure: Basic services offered, Elastic Beanstalk, EC2, S3, RDS, Lambda

• Docker: Containerization, Dockerfiles, Docker Compose, Docker Swarm

• Kubernetes: Cluster management, Kubernetes Objects, Deployment, Service

1. SQL and NoSQL databases:

• SQL: Basic Queries, Joins, Aggregations, Subqueries, Indexes

• NoSQL: Key-Value stores, Document stores, Column-family stores, Graph databases

1. Testing frameworks:

• JUnit: Test fixtures, Assertions, Parameterized Tests

• Mockito: Mocking, Spying, Verification, Stubbing

• TestNG: Annotations, Data Providers, Assertion Types, Test Groups

1. Agile methodologies:

• Scrum: Sprint Planning, Sprint Review, Daily Standup, Sprint Retrospective

• Kanban: Visualization, Work in Progress Limits, Pull-based Workflow

1. System design and scalability:

• Load balancing: Round Robin, Weighted Round Robin, Least Connections, IP Hash

• Caching: Types of caching, Invalidation, Cache Eviction Policies