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Service Oriented Architecture Interview questions


soa interview questions

Top Answers to SOA Interview Questions

1.Compare SOA & Microservices

Criteria SOA Microservices
Deployment In a shared Bus At the edge
Goals One for all As per the business units
Back-end implementation Not prescriptive prescriptive

2.What is SOA?

SOA is an architecture for building applications using reusable, interoperable services which have well defined business functionalities and can be orchestrated to achieve a specific functionality by utilizing them together.

3.What are the main features of SOA?

  • SOA separates business functions into services (endpoints), which are made accessible over a network in order to allow users to combine and reuse them in their applications.
  • Services are unassociated and loosely coupled units that do not directly rely on each other for their full functioning. Rather than services embedding calls to each other in their source code, they use defined protocols that describe how services pass and parse messages using description metadata.
  • Orchestration is a process where business functionality from various services are combined in a system fully aware of all available services and the associated metadata that defines these services and their characteristics.

4.Mention the SOA Principles?

  • Standardized service contract: Services adhere to a communications agreement, as defined collectively by one or more service-description documents.
  • Service loose coupling: Services maintain a relationship that minimizes dependencies and only requires that they maintain an awareness of each other.
  • Service abstraction: Beyond descriptions in the service contract, services hide logic from the outside world.
  • Service re usability: Logic is divided into services with the intention of promoting reuse.
  • Service autonomy: Services have control over the logic they encapsulate.
  • Service statelessness: Services minimize resource consumption by deferring the management of state information when necessary
  • Service dis coverability: Services are supplemented with communicative meta data by which they can be effectively discovered and interpreted.
  • Service composability: Services are effective composition participants, regardless of the size and complexity of the composition.


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