Oracle 1Z0-574 Online Practice Questions and Exam Preparation

Oracle 1Z0-574 Online Questions & Answers

• Question 41:

  For a large heterogeneous environment with a large number of hosts requiring scalability and efficiency, what is the best strategy for deployment of Oracle Enterprise Manager?

  A. Use a centralized control with persistent connections to all agents to pull data.
  B. Use multiple semi-autonomous agents collecting information and periodically relaying it to a central repository.
  C. Use multiple Instances of Oracle Enterprise Manager to maximize performance.
  D. Use centralized alert filtering.
  B. Use multiple semi-autonomous agents collecting information and periodically relaying it to a central repository.

  ---

  Oracle Enterprise Manager 11g Grid Control has the ability to scale for hundreds of users and thousands of systems and services on a single Enterprise Manager implementation. Can use two instances of Oracle Enterprise Manager for large deployments (10000 clients or more). The architecture for Oracle Enterprise Manager 10g Grid Control exemplifies two key concepts in application performance tuning: distribution and parallelization of processing. Each component of Grid Control can be configured to apply both these concepts. The components of Enterprise Manager Grid Control include:

  *

  The Management Agent - A process that is deployed on each monitored host and that is responsible for monitoring all services and components on the host. The Management Agent is also responsible for communicating that information to the middle-tier Management Service and for managing and maintaining the system and its services.

  *

  The Management Service - A J2EE Web application that renders the user interface for the Grid Control Console, works with all Management Agents to process monitoring and jobs information, and uses the Management Repository as its data store.

  *

  The Management Repository - The schema is an Oracle Database that contains all available information about administrators, services, and applications managed within Enterprise Manager.

• Question 42:

  Assets may be packaged into deployable units by using a variety of strategies. Which of the following is not a valid asset packaging scenario?

  A. bundled as a single archive file
  B. unbundled with artifactsinthe original location
  C. unbundled with artifacts moved to a new location
  D. bundles as a single executable binary file thatis run stand-alone
  D. bundles as a single executable binary file thatis run stand-alone

  ---

  The Reusable Asset Specification (RAS) provides the following guidelines with respect to asset packaging.

  *

  Every reusable asset must contain at a minimum one manifest file and at least one artifact, to be considered a valid reusable asset.

  *

  An asset package is the collection of artifact files plus a manifest. There are several asset packaging scenarios including:

  *

  Bundled As Single Archive File (not A)

  *

  Unbundled with artifacts in original location (not B)

  *

  Unbundled with artifacts moved to new location (not C)

• Question 43:

  Which of the following is not an objective or function of the WS-Trust standard?

  A. to enable applications to construct trusted SOAP message exchanges
  B. to synchronize Identities across security domains
  C. to exchange tokens in order to overcome differencesin supported technology between service consumers and service providers
  D. to exchange tokensin order to mapidentities supplied by service consumers with identities supported by service providers
  A. to enable applications to construct trusted SOAP message exchanges

  ---

  Oracle STS leverages the WS-Trust standard protocol to manage token exchange between the Web Service Client (WSC) and the Web Service Provider (WSP) (not C). WS-Trust provides a standard way to send security token requests to any Security Token Service (STS) (not D). This specification can be used to manage token transformation when crossing the various security boundaries of the information system (not B).

• Question 44:

  Which statement best describes synchronous versus asynchronous communications in a Service Oriented Integration (SOI) architecture?

  A. Both synchronous and asynchronous communication should be supported by SOI. Synchronous communication provides an easier programming paradigm. Asynchronous communication provides greater decoupling between the requester and the responder.
  B. The SOI architecture should use only synchronous communication because SOA Services are inherently synchronous. If a back end system supports only asynchronous communications, the "bridging synchronous and asynchronous communications" integration pattern can be used to convert from asynchronous communication to synchronous communication.
  C. The SOI architecture should use only asynchronous communication because asynchronous communication provides greater decoupling in the architecture. If a back-end system supports only synchronous communications, the "bridging synchronous and asynchronous communications" integration pattern can be used to convert from synchronous communication to asynchronous communication.
  D. The SOA Services in the SOI architecture should use only synchronous communication because SOA Services are inherently synchronous. All communication with back-end system should be asynchronous to decouple the SOA Services from the back-end systems.
  E. The communication within the SOI architecture should be asynchronous and should follow the publish- and-subscribe integration pattern. The publish-and-subscribe pattern is the most flexible and provides the greatest decoupling and message throughput.
  A. Both synchronous and asynchronous communication should be supported by SOI. Synchronous communication provides an easier programming paradigm. Asynchronous communication provides greater decoupling between the requester and the responder.

  ---

  When using synchronous communication the service consumer blocks until the service provider responds. This is usually the easiest type of communication to program in the consumer application. Thus, synchronous communication must be supported by the architecture.

  Many applications included in integration scenarios do not provide a synchronous interface. Asynchronous communication is also used when the response time for the source system is too slow to support the timelines of the calling systems. Thus the architecture must support asynchronous communications.

• Question 45:

  Which of the following is not a characteristic of Cloud computing?

  A. multi-tenancy
  B. elastic scaling
  C. pay-for-use pricing
  D. manual provisioning
  D. manual provisioning

• Question 46:

  The Service-Oriented Integration (SOI) architecture includes an event-handling capability as illustrated and described in the Process View. Which statement best describes the rationale for including event handling in the SOI architecture?

  A. Event-Driven Architecture (EDA) is a subset of SOI, so including event handling provides the EDA part of SOI.
  B. The event-handling capability allows arbitrarily complex events to be handled by the architecture;
  C. e. Complex Event Handling (CEP) is part of the SOI architecture.
  D. AH other interactions within the architecture are upper layers calling lower layers. The event- handling capability allows a Connectivity Service to call a Business Service, thus providing the ability to lower layers to call upper layers in the architecture.
  E. The event-handling capability allows a back-end system that is included in the SOI to initiate action because something important has occurred within the back-end system.
  F. By employing a publish-and-subscriber message approach, the event-handling capacity allows the SOI architecture to handle high-volume message traffic because publish-and-subscribe handles higher message volumes than request-response.
  D. AH other interactions within the architecture are upper layers calling lower layers. The event- handling capability allows a Connectivity Service to call a Business Service, thus providing the ability to lower layers to call upper layers in the architecture.

  ---

  Note:

  Events allow one system (event emitter) to notify other systems (event sink) that something of interest has changed. There are two broad categories of event types:

  *

  Business Event - A business event is an event that is of business relevance and would be readily understood by a business person.

  *

  Technical Event - A technical event is an event that is relevant to IT but not directly relevant to the business.

  As illustrated by the figure below, in this architecture all events are routed to the Business Process Layer and the appropriate business processes are executed for that event. Essentially this is a mechanism for a lower level in the architecture stack, the Connectivity Layer, to initiate actions that might include interactions with all other levels in the architecture. This is essential since the generated event will likely be backend system specific; therefore it is likely that the data must be normalized and some amount of custom logic may be required to convert the event into an event that is backend system agnostic.

  

• Question 47:

  Conceptually, the ORA model of a "modern UI" defines which three layers from the following list?

  A. Unified User Interface layer provides the control and visual elements that define the interaction that the user has with the system.
  B. Integration layer provides connectors to simplify and standardize Interaction with back-end -terns.
  C. Device Management layer provides transformation and transcoding to support a wide variety of devices.
  D. Browser Mediation layer adapts output to conform to the standards and capabilities of each browser type.
  E. User Interface Services layer provides reusable functions specialized to the needs of the end
  F. Access and Incorporation layer provides the capability to Incorporate data and functionality from any number of back-end systems into the user interface.
  A. Unified User Interface layer provides the control and visual elements that define the interaction that the user has with the system.
  E. User Interface Services layer provides reusable functions specialized to the needs of the end
  F. Access and Incorporation layer provides the capability to Incorporate data and functionality from any number of back-end systems into the user interface.

  ---

  Note:

  

  A: The Unified User Interface layer provides the control and visual elements that define the interaction the user has with the system. This layer separates the way the user interacts with the system from the underlying functionality provided by the system. This has many advantages including allowing different display devices to be supported via control and visual elements specialized for the device since, for example, mobile devices do not have nearly the screen real estate of a desktop computer.

  E: The User Interface Services layer provides a set of functionality that can be used and reused in a variety of ways to deliver various user interfaces specialized to the needs of the end user. This illustrates that the underlying functionality is separated from the visual and control elements built into the user interface. The services provided by this layer may come from a variety of sources located anywhere that is network accessible.

  F: The Access and Incorporation layer provides the capability to incorporate data and functionality from any number of backend systems into the user interface. Generally, there are two types of backend systems that need be incorporated into the user interface: systems that are designed for use with user interface (e.g. LDAP, dedicated database) and systems that are not (e.g. legacy applications). The former type systems can be access directly by the user interface architecture. Ideally the latter type should be accessed via a robust integration architecture rather than relying on point-to-point integrations. This distinction is the reason that the term "incorporation" is used in this Conceptual View instead of the term "integration." A suitable integration architecture is described in the ORA Service-Oriented Integration document.

• Question 48:

  Credential mapping is done in order to create the proper credential for a user in order to issue a request to another system. In a scenario where one Oracle WebLogic Server makes a Web Service request to another Oracle WebLogic Server, where might credential mapping be performed?

  A. In the WLS platform (OPSS / OWSM agent) making the Web Service request
  B. In the service bus, if one is being used
  C. In the WLS platform (OPSS / OWSM agent) responding to the request
  D. In a Security Token Service, if WS-Trust is being used
  E. In the credential store
  F. In the identity management server
  A. In the WLS platform (OPSS / OWSM agent) making the Web Service request
  C. In the WLS platform (OPSS / OWSM agent) responding to the request

  ---

  OPSSworks in conjunction with OWSM and the WebLogic container. It provides the plug-in security framework.OPSS enables OWSM to

  perform credential mapping and identity assertion, which is necessary in order to propagate and assert identity from client to service. It also handles authentication and authorization of service requests as needed.

  A credential mapping service intercepts the outbound

  service request, maps the current user identity to the target credentials, and embeds the credentials within the outbound request. The receiver then extracts the credentials and authenticates the user. Mapping may be performed by an

  intermediary in order to avoid embedding such security concerns within the requestor or target resource.

  Note:

  OWSMis a run-time framework for security policy creation, management, and governance. Policies are created, attached to services, and enforced at various points in the messaging life cycle. OWSM includes a policy manager and Web

  Service security agents. Both the policy manager and agents run on Oracle WebLogic Server (OWLS).

  Agents can be on the service requester side (client) and/or the service provider side(A and C). Agents are installed in the OWLS Web Service interceptors. A request made to a Web Service is intercepted by an OWSM agent that enforces

  security policies defined in the OWSM policy manager. Since OWSM and Oracle Service Bus (OSB) both run on Oracle WebLogic Server, OWSM agents can be used to secure OSB proxy and business services. This provides a common,

  universal policy and enforcement model for WSS. OWSM is also integrated with Oracle JDeveloper to provide declarative policy attachment at development time.

• Question 49:

  The Service-Oriented Integration architecture makes a distinction between technical orchestrations and business processes. Which statement best describes these two concepts?

  A. A business processes is likely to change when the business changes, whereas a technical orchestration is likely to change when back-end systems change.
  B. A business process that is implemented within SOIis called a technical orchestration.
  C. Each business process is implemented by calling a sequence of SOA Services. This sequential calling of SOA Services Is what is known as a technical orchestration.
  D. A technical orchestration is a low-level implementation detail and has no relationship to business processes.
  E. Business processes are implemented using BPMN, whereas technical orchestrations are Implemented using BPEL.
  A. A business processes is likely to change when the business changes, whereas a technical orchestration is likely to change when back-end systems change.

  ---

  Technical orchestration is separated from business processes. Making a clear distinction between technical aspects and business aspects facilitates maintenance of both. Technical aspects change when the underlying systems change whereas business aspects change when the business changes.

• Question 50:

  IT Strategies from Oracle (ITSO) Includes multiple Enterprise Technology Strategies. Why are there multiple Enterprise Technology Strategies within ITSO?

  A. Each enterprise Technology Strategy documents the architecture for a particular Oracle product.
  B. Each Enterprise Technology Strategy provides Oracle product details that are important to the technology strategy.
  C. An Enterprise Technology Strategy provides detailed guidance on deploying the oracle products that are important to the technology strategy.
  D. Each Enterprise technology Strategy provides a reference architecture and practical guidance to achieve success with specific new technology.
  E. Each Enterprise Technology Strategy provides industry-vertical reference architecture and practical guidance.
  D. Each Enterprise technology Strategy provides a reference architecture and practical guidance to achieve success with specific new technology.

  ---

  IT Strategies from Oracle (ITSO) is a series of documentation and supporting material designed to enable organizations to develop an architecture-centric approach to enterprise-class IT initiatives. ITSO presents successful technology strategies and solution designs by defining universally adopted architecture concepts, principles, guidelines, standards, and patterns.

  ITSO is made up of three primary elements Oracle Reference Architecture (ORA), Enterprise Technology Strategies (ETS) and Enterprise Solution Designs (ESD).

  Enterprise Technology Strategies (ETS) offer valuable guidance on the adoption of horizontal technologies for the enterprise. They explain how to successfully execute on a strategy by addressing concerns pertaining to architecture, technology, engineering, strategy, and governance. An organization can use this material to measure their maturity, develop their strategy, and achieve greater levels of adoption and success. In addition, each ETS extends the Oracle Reference Architecture by adding the unique capabilities and components provided by that particular technology. It offers a horizontal technology-based perspective of ORA.