Exit 1Z0-574 Oracle IT Architecture Release 3 Essentials
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Q1 Single choice

Service-Oriented Integration is based on creating a catalogue of SOA Services that expose existing capabilities from back-end systems.

Which statement best describes how an SOA Service relates to the existing back-end systems?

  • A

    Each SOA Service exposes the functionality from only a single back-end system to ensure the decoupling of SOA Services.

  • B

    An SOA Service should expose the low-level interface of the back-end system to ensure that all back-end system capabilities are fully exposed.

  • C

    An SOA Service should expose higher-level business capabilities by encapsulating the lower level Interfaces of the back-end systems.

  • D

    Each SOA Service should expose only one isolated capability of the back-end systems to ensure isolation between SOA Service calls in composite applications.

  • E

    All access to a back end system should be through a single SOA Service to ensure the back-end system will net become overloaded by service requests.

  • F

    An SOA Service should connect to at least two back-end systems; otherwise the SOA Service is just
    duplicating the existing interface to the back-end system.

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