SOA_1

Question 1

What is the main objective of the course on SOA?

Answer 1

To understand the concept of service and the principles of SOA architecture.

Question 2

What is SOA?

Answer 2

Service Oriented Architecture.

Question 3

What are the key areas covered in the course?

Answer 3

The concept of Service, SOA architecture, Web Service concept, Web service standards, and JAX-Web API.

Question 4

What is the importance of SOA?

Answer 4

Organizations must adapt quickly to customer demands and changing regulations.

Question 5

What are the two main issues SOA addresses?

Answer 5

The misalignment between business and IT, and the duplication of functionalities and process silos.

Question 6

Why is information important in service organizations?

Answer 6

Information is crucial for managing processes and delivering quality service.

Question 7

What risks are associated with IT projects?

Answer 7

Technical risk, organizational risk, and commercial risk.

Question 8

What causes the misalignment between business needs and IT?

Answer 8

IT’s inability to evolve quickly and provide necessary functionalities.

Question 9

What is a common issue in traditional organizational structures?

Answer 9

Duplication of data and functionalities due to functional department silos.

Question 10

How does duplication of data occur in organizations?

Answer 10

Different departments use their own systems, leading to inconsistent information.

Question 11

What is an example of data duplication in an insurance company?

Answer 11

Marketing and customer service departments storing product information in different systems.

Question 12

What are process silos?

Answer 12

Departments that operate independently, leading to inefficiencies and poor customer service.

Question 13

What is the impact of process silos?

Answer 13

They can slow down overall processes and lead to customer dissatisfaction.

Question 14

What strategies can organizations adopt to remain competitive?

Answer 14

Operational excellence, product leadership, and customer intimacy.

Question 15

What is Service Oriented Computing (SOC)?

Answer 15

A computing paradigm that uses services as fundamental elements for developing enterprise applications.

Question 16

What is the goal of SOC?

Answer 16

To facilitate the integration of new and legacy applications across organizational boundaries.

Question 17

What does SOA provide?

Answer 17

A cost-effective solution for integrating applications and addressing business needs.

Question 18

What technologies are associated with Web services in SOA?

Answer 18

XML, WSDL, SOAP, and UDDI.

Question 19

What does SOA describe in the context of Jini?

Answer 19

SOA describes an environment for dynamic discovery and use of services on a network.

Question 20

How did Web services build upon the concept introduced by Jini?

Answer 20

Web services implemented the concept of services using technologies like XML, WSDL, SOAP, and UDDI.

Question 21

What is a service in the context of software components?

Answer 21

A service is a software component that performs an action on behalf of a client.

Question 22

What are the properties of a service?

Answer 22

A service is reusable, referenced in a directory, standardized, described by an interface, communicates via messages, neutral, has weak coupling, and is deployed on a server.

Question 23

What is service orchestration?

Answer 23

Service orchestration allows services to be composed to achieve a specific process while maintaining loose coupling.

Question 24

What are the types of services?

Answer 24

The types of services include Applicative, Functional, Entity (CRUD), Transverse (Infrastructure), and Host.

Question 25

What characterizes an Applicative service?

Answer 25

An Applicative service translates the application logic expressed by use cases and is typically used only within the context of the application it was created for.

Question 26

What does CRUD stand for in service types?

Answer 26

CRUD stands for Create, Read, Update, and Delete.

Question 27

What is a Functional service?

Answer 27

A Functional service executes a business process and can be invoked by different applicative services.

Question 28

What are the properties of services?

Answer 28

Services are reusable, communicate via messages, are abstract and predictable, modular, autonomous, interoperable, loosely coupled, discoverable, and composable.

Question 29

What is the significance of a service contract?

Answer 29

A service contract defines the syntax, semantics, and quality of service, ensuring reusability and compliance.

Question 30

How do services communicate?

Answer 30

Services communicate solely through messages, and consumers can invoke them via their network address.

Question 31

What does it mean for a service to be stateless?

Answer 31

A stateless service does not maintain context, ensuring independence and simplifying maintenance.

Question 32

What is interoperability in services?

Answer 32

Interoperability allows communication with heterogeneous systems using specified connectors.

Question 33

What is loose coupling in service architecture?

Answer 33

Loose coupling refers to the low dependency between the consumer and the service, allowing for easier maintenance.

Question 34

What is service discoverability?

Answer 34

Discoverability allows consumers to find services in a directory based on metadata.

Question 35

What is composability in services?

Answer 35

Composability allows services to be combined through orchestration to meet complex needs.