SOA S90-08A Online Practice Questions and Exam Preparation

SOA S90-08A Online Questions & Answers

• Question 71:

  Assuming you have technical service contracts for SOAP-based Web services, you can apply the pattern through the use of .

  A. Schema Centralization, XML schemas
  B. Message Metadata, SOAP message headers
  C. Decoupled Contract, WSDL definitions
  D. Policy Centralization, WS-Policy definitions
  A. Schema Centralization, XML schemas
  B. Message Metadata, SOAP message headers
  C. Decoupled Contract, WSDL definitions
  D. Policy Centralization, WS-Policy definitions

• Question 72:

  Which of the following statements regarding the application of the State Repository pattern is false?

  A. State data can be temporarily written to and then later retrieved from a dedicated state repository.
  B. Caching large amounts of state data in memory negatively impacts scalability.
  C. A state repository is not useful for supporting long-running service activities.
  D. Database technology is typically used for the implementation of a state repository.
  C. A state repository is not useful for supporting long-running service activities.

• Question 73:

  If a service consumer program needs to get data from a service that is not available, it can poll the service by periodically issuing a request message. This type of interaction can be inefficient because it can lead to unnecessary message transmissions. Which of the following statements describes a solution to this problem?

  A. By applying the Messaging Metadata pattern, the service consumer can write a request identifier in the message header. Service agents then intercept the request messages and do not forward those that contain a previously detected identifier. This practice eliminates the delivery of the duplicate messages to the service.
  B. The Event-Driven Messaging pattern can be applied to establish a messaging framework in which service consumers are automatically notified of relevant runtime service events.
  C. By applying the Atomic Service Transaction pattern, a service can be designed to invoke an alternative exception handling process when it is unavailable to receive a given message.
  D. None ofthesestatements describe solutions that directly solve this problem.
  B. The Event-Driven Messaging pattern can be applied to establish a messaging framework in which service consumers are automatically notified of relevant runtime service events.

• Question 74:

  Which of the following patterns may also require the application of the Service Agent pattern?

  A. Reliable Messaging
  B. Asynchronous Queuing
  C. Intermediate Routing
  D. Policy Centralization
  A. Reliable Messaging
  B. Asynchronous Queuing
  C. Intermediate Routing
  D. Policy Centralization

• Question 75:

  Which of the following statements is false?

  A. When applying the Data Format Transformation pattern, data format transformation logic can be the responsibility of a service fa?ade component that is tasked with converting between proprietary and standardized data formats.
  B. The Data Format Transformation pattern is applied in situations where there is a need to convert data between disparate XML schemas.
  C. Some transport protocols can be associated with specific data formats, in which case it makes sense to apply the Data Format Transformation pattern together with the Protocol Bridging pattern.
  D. The Data Format Transformation pattern is one of the patterns that comprise the Service Broker pattern.
  B. The Data Format Transformation pattern is applied in situations where there is a need to convert data between disparate XML schemas.

• Question 76:

  Which of the following statements about the application of the Policy Centralization pattern is true?

  A. Service agents can check for policy compliance at runtime.
  B. A policy framework that supports both the definition of policies and their consistent runtime enforcement is essential to meeting the goals of the Policy Centralization pattern.
  C. Enterprise service bus products sometimes use proprietary policy formats which can lead to vendor lock-in and incompatibilities with other enterprise service bus products.
  D. All of these statements are true.
  D. All of these statements are true.

• Question 77:

  Which of the following statements are false?

  A. Using the Reliable Messaging pattern can improve the quality of messaging-based communication.
  B. The Reliable Messaging pattern is applied to databases, not services.
  C. The Reliable Messaging pattern is one of the patterns that can be associated with the Enterprise Service Bus compound pattern.
  D. The Reliable Messaging pattern is always applied together with the Atomic Service Transaction pattern.
  B. The Reliable Messaging pattern is applied to databases, not services.
  D. The Reliable Messaging pattern is always applied together with the Atomic Service Transaction pattern.

• Question 78:

  Which of the following statements is false?

  A. Widespread use of the Messaging Metadata pattern can be seen in the emergence of many WS-* extensions that define industry standard SOAP header blocks that carry metadata.
  B. Messaging frameworks and technologies need to provide support for the reading and writing of message headers or properties in order to fully support the application of the Messaging Metadata pattern.
  C. The Messaging Metadata pattern is not applicable to situations where the message sender and receiver need to participate in stateful or conversational message exchanges.
  D. The Messaging Metadata pattern can support the application of patterns such as Intermediate Routing by supplementing messages with activity-specific metadata.
  C. The Messaging Metadata pattern is not applicable to situations where the message sender and receiver need to participate in stateful or conversational message exchanges.

• Question 79:

  In order to realize the failover support provided by the application of the Redundant Implementation pattern, the Intermediate Routing pattern also needs to be applied so that services can be load balanced.

  A. True
  B. False
  B. False

• Question 80:

  A service composition architecture with the following requirements needs to be created:

  1.

  Services will have different periods of availability.

  2.

  Sometimes the destination of a message cannot be determined until runtime.

  3.

  All the services do not support the same messaging protocol. Of the following choices, which patterns should be used to address these requirements?

  A. Event-Driven Messaging, Intermediate Routing, Atomic Service Transaction
  B. Protocol Bridging, Compensating Service Transaction, Asynchronous Queuing
  C. Intermediate Routing, Data Format Transformation, Asynchronous Queuing
  D. Protocol Bridging, Intermediate Routing, Asynchronous Queuing
  D. Protocol Bridging, Intermediate Routing, Asynchronous Queuing