IBM SOA Fundamentals [2008]

1.

What demonstrates one of the key principles communicated by the IBM SOA Reference Architecture?

Business processes can be modeled in parallel with the services they rely on. Services are implemented using the Enterprise Service Bus (ESB) and exposed to serviceconsumers. Business process developers need to communicate effectively with Enterprise Service Bus(ESB)developers. Changes in service implementations require changes in the service interface which should bereflectedin the service registry.

2.

Why is messaging important to an SOA?

Messaging improves the performance of complex environments. Messaging implements separation of concerns resulting in faster development. Messaging facilitates communication between distributed heterogeneous environments. Messaging is used to communicate between a repository and an Enterprise Service Bus(ESB).

3.

Which capabilities reside within the Enterprise Service Bus (ESB)?

Service mediation and routing logic Service logic and message transformation Service implementations and service access control Service routing and a registry of service endpoints

4.

An organization plans to automate a business process and expose the result as a service. How should humans interact with such a business process in the context of SOA?

A Web application may be developed to act as a service consumer, allowing humans to invoke the automated business process. Any activity in the business process may be The use of human activities in such a business process is not recommended since the slowresponsethat will be received from humans is not suitable to the synchronous A Web application may be developed to act as a service consumer, allowing humans to invoketheautomated business process from a browser. All activities in the business A Web application may be developed to act as a service consumer, allowing humans to invoketheautomated business process. Only unusual steps in the business process All other activities should be performed by automated service providers.

5.

Which two roles do Web services play in an SOA?

They provide mediation for service requests. They provide the framework for information as a service. They support interoperability between disparate technologies. They provide an open standard means for describing service interfaces. They provide the messaging infrastructure for the Enterprise Service Bus (ESB).

6.

Which three characteristics of SOA can make a business more agile?

Changing the implementation without affecting the consumers Enforcing governance processes Creating components that can be shared Maintaining up-to-date application interfaces Building applications from reusable components

7.

Access services represent which vital function in the IBM SOA Reference Architecture?

Distributed role-based access control mechanisms Connectivity with existing and legacy functionality Additional security at gateway points between domains Services exposed across different business units or organizations

8.

Which cross-cutting concerns are present at all areas within a logical SOA?

Integration, security, management, monitoring and governance Logging, auditing, business processes, information architecture, identity provision andgovernance Encapsulation, separation of concerns, high cohesion, loose-coupling, correct granularityandabstraction Business flexibility, business agility, cost effectiveness, goal related, traceable requirementsandcontinuous incremental improvement

9.

What describes a task within a modeled business process?

The description of steps required to complete a unit of work Each task represents a work item performed by a system or human The transition that takes place for the business process to continue When a human completes a task it is marked complete allowing the process to proceed

10.

Which is an architectural characteristic of SOA?

An emphasis on standards Utilizing Web services to access all business functionality An Enterprise Service Bus (ESB) with an emphasis on Web services An Enterprise Service Bus (ESB) with an emphasis on XML messaging

IBM SOA Fundamentals [2008]

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