IBM Architectural Design of SOA Set 4

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IBM Architectural Design of SOA Set 4

A large bank has a paper-based process for transferring funds between regional centers that takes days to complete. They want to use SOA to automate this process. As an SOA Designer, what is a likely reason to also include Partner Services?

The automated process needs to provide self service and status tracking of the process to its users. ✘ The funds transfer process involves service calls to an internal workflow that controls the final step. ✘ There is a requirement to use Extract/Transform/Load (ETL) to move information from one service toanother. ✘ There is a business requirement to conform to interchange standards like Society for WorldwideInterbank Financial Telecommunication (SWIFT). ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which statement about SOA service design is true?

Statefulness is desirable as it implies that the service provider holds parameters in memory between invocations avoiding data communication costs. ✘ Loose coupling implies that services should be designed using standardized interfaces and openstandards. ✘ Service granularity implies the service must have the smallest amount of functionality in the subsystem. ✘ Encapsulation implies that services should hide the implementation details from their interface design. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which statement is true when designing services within SOA guidelines?

Loose coupling implies that a service design is open standards compliant. ✘ Stateless services must never invoke other services before responding to consumers. ✘ Encapsulation implies that service implementation details should not be exposed in the interfacedesign. ✘ Service granularity implies that the function provided by a service is limited to the smallest possiblescope. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

A retail company is faced with the challenge of quickly introducing new products involving components from multiple lines-of-business. How can adopting SOA help this company meet this challenge?

By introducing an Enterprise Service Bus (ESB) to support services created from existing legacy application functions ✘ By optimizing interactions with business partners using Web services ✘ By monitoring retail sales activities and providing company executives with a dashboard for up-to- dateKPIs ✘ By identifying services in each Line of Business (LOB) that would support new product developmentand marketing business processes ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

A retail company is faced with the challenge of quickly introducing new products involving components from multiple lines-of-business. How can adopting SOA help this company meet this challenge?

By introducing an Enterprise Service Bus (ESB) to support services created from existing legacy application functions. ✘ By providing a single view of disparate data sources through the use of Information as a Service. ✘ By introducing a portal for access to components from multiple lines of business to provide integrationat the glass. ✘ By identifying services in each Line of Business (LOB) that would support new product developmentand marketing business processes. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

An organization with a strong background in J2EE development and excellent IT governance is starting its first SOA project. Using the Service Integration Maturity Model (SIMM) as a guide, which action should they take to extend their object oriented modeling capability to increase their chance of success with this SOA project?

Focus on creating services rather than objects resulting in a shift to the services level in the application dimension. ✘ Adopt SOMA or an equivalent SOA method to increase the organization's capability in the methodologydimension. ✘ Deploy an Enterprise Service Bus (ESB) to begin to move them along the infrastructure dimension fromenterprise standard to common SOA environment. ✘ Introduce a reference architecture to shift them from component architecture to SOA in the architecturedimension. ✔ Introduce the use of the service modeling profile in Rational Software Architect (RSA) or equivalent. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

A company has started an ambitious SOA project as part of an enterprise modernization initiative. The SOA Designer has determined that their mainframe-based portfolio is a tightly coupled set of applications owned by different IT organizations. In addition, the SOA executive sponsor is concerned that their mainframe portfolio and skill base will make the transition to SOA difficult. What should the SOA Designer do?

Deploy an Enterprise Service Bus (ESB) as a means for decoupling the applications and isolating organizational issues. ✘ Develop a detailed education roadmap for the application owners, developers and operations staff toensure success. ✘ Suggest a pilot project to re-engineer one of the mainframe applications to use J2EE and SOAP onUnix to help develop SOA skills. ✘ Propose a Service Integration Maturity Model (SIMM) assessment to identify any potentialorganizational issues or skill mismatches in the project staff. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

An organization in the utilities sector has used WebSphere MQ for several years. Over time, the staff has developed expertise in WebSphere MQ and they are most comfortable solving problems using messaging- based technology. They plan to take advantage of SOA but are concerned about the risk of moving to new technology. Which technical solution should be suggested for this client?

Create service faades for existing applications using WebSphere Message Broker. ✘ Use SOAP messaging with WebSphere MQ applications and WebSphere Enterprise Service Bus(ESB). ✘ Use WebSphere MQ pub/sub messaging to decouple service consumers from service providers. ✘ Use WebSphere MQ services instead of an ESB. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

A retail bank built an SOA for their customer service portal. Their layered architecture contains services at all levels. The system is not providing the performance required. What should the SOA Designer examine first to identify the cause?

Review network capacity since large numbers of small messages can introduce a high overhead ratio, limiting the data transmitted per message. ✘ Review the service governance processes making sure they are identifying duplication and ensuringservice level requirements are being managed. ✘ Review database accesses since large numbers of service requests can result in contention fordatabase connections, race conditions or unintentional locking. ✘ Review the granularity of the service operations to determine whether there are too many technicalservices relative to the number of business services. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

A delivery company currently has a process where office staff must update a number of legacy systems with the status of deliveries from paper-based forms. The company wants to deploy new wireless handheld devices to their drivers so they can report on the progress of daily deliveries in real-time. What should be the initial approach for this scenario?

Analyze the business process to uncover a new business model, then create service wrappers for legacy systems. ✘ Create service wrappers for legacy systems, then aggregate existing data and enable humaninteraction. ✘ Create service wrappers for the legacy systems, then reuse them in different processes. ✘ Analyze the existing information sources to deliver them as a service, then reuse the services indifferent processes. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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IBM Architectural Design of SOA Set 4

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