Oracle Oracle Certifications 1Z0-574 Questions & Answers

• Question 61:

  Which of the following statements are true about the XACML standard and architecture?

  A. The Policy Enforcement Point (PEP) is where permit / deny access decisions are made.

  B. The Policy Information Point (PIP) provides information such as user attributes or environmental data that may be used to make access control decisions.

  C. XACML defines an XML schema used to represent rules for access control.

  D. XACML defines a TCP protocol used to communicate messages between Policy Enforcement Points.

  E. SAML assertions can be used to carry XACML authorization decisions.

  Correct Answer: ABCE

  Explanation:

  A: PEP - Policy Enforcement Point, where permit/deny access decisions are enforced.

  B: PIP - Policy Information Point, where information can be retrieved to evaluate policy conditions. For example, a user's role or time of day may be needed by the PDP to make a policy decision.

  C: eXtensible Access Control Markup Language (XACML) provides a standard way to represent access control policy information using XML. XAMCL defines access control policies in terms of rules, which in turn are defined to include a target, an effect, and a set of conditions. XACML defines an XML schema used to represent rule

  E: The SAML 2.0 profile of XACML 2.0 defines SAML assertions used to carry policies, policy queries and responses, authorization decisions, authorization query decisions and responses, and attribute assertions. In this way SAML authentication, attribute, and authorization assertions are incorporated into the security framework to complement XACML.

  References:

• Question 62:

  Which statement best describes the relationship between the Oracle Reference Architecture (ORA) and Service-Oriented Architecture (SOA)?

  A. ORAincludes many different technology perspectives (for example, BPM, BI) Including SOA. The SOA perspective provides a view of ORA focused on the products and technology applicable to SOA.

  B. ORA embraces service orientation as a core tenet to consistently and uniformly deal with the complexity of a heterogeneous computing environment common to enterprise IT.

  C. ORA embraces SOA as a core tenet; therefore, adopting ORA means that SOAis adopted as well.

  D. ORA is a reference architecture based on architecture principles and best practices. SOA is a marketing term that has become widely and ambiguously used within the industry.

  E. SOAis an architectural approach that isproduct- and vendor-independent,ORA is essentially a SOA implemented using Oracle products and technology.

  Correct Answer: B

  Explanation: ORA does have a special relationship with SOA. ORA embraces service-orientation as a core tenet to improve agility, rationalize functions and data, and promote reuse in an effective manner. The entire strategy of SOA is not core to ORA (not C), but the concept of exposing data and functionality as interoperable SOA Services is core to ORA. ORA must provide interoperability across all Oracle products and must also effectively deal with the heterogeneity that exists in IT environments. SOA Services provide a clean, consistent approach to deal with both of these complexities. This is the reason that ORA includes service orientation as a core tenet.

  Stated as an architecture principle, this becomes:

  * The architecture embraces services as the primary mechanism for interoperability and integration.

  References:

• Question 63:

  Which principle should be applied when considering display devices?

  A. The architecture must provide distinct tooling for the unique development of every available device.

  B. The architecture must support translation of standard browser code to all possible variations of display devices, allowing the developer to focus on functionality for the end user.

  C. The architecture must provide for the development of user Interfaces for a variety of display devices.

  D. Only display devices that support a full-featured user interaction are allowed with this architecture.

  Correct Answer: C

  Explanation:

  The architecture must support multiple different display devices.

  An architecture that supports only a single display device is prohibitively limiting in today's connected

  world. Even if only a single display device (e.g. personal computer) is the initial focus for a business

  solution, the architecture must be designed to readily support additional display devices; otherwise the cost

  of supporting another display device constrains the future flexibility of the solution.

  References:

• Question 64:

  Which three primary types of materials form an Enterprise Technology Strategy?

  A. ORA Technology Perspective

  B. ORA Industry Perspective

  C. Practitioner Guides

  D. Maturity Model

  E. Business Processes

  F. Data Entities

  Correct Answer: ACD

  Explanation:

  There are three primary types of collateral provided for each ETS:

  *

  ORA Technology Perspective

  *

  Practitioner Guides

  *

  Maturity Model

  References:

• Question 65:

  Web Services are a natural fit for building distributed computing platforms. Which of the following qualities of Web Services make them suitable for distributed computing?

  A. WSDL,SOAPand XML promote language and platform Independence and interoperability

  B. WSDL can be used to define components that can be distributed in multiple servers.

  C. UDDI allows services deployed in a distributed infrastructure to be discovered and consumed.

  D. Web Services are deployed to the web tier of the distributed architecture.

  Correct Answer: AC

  Explanation:

  Web Services are a natural fit for building distributed computing platforms.

  *

  WSDL, SOAP, and XML promote language and platform independence and interoperability.

  *

  UDDI allows services deployed in a distributed infrastructure to be discovered and consumed.

  *

  Simple Object Access Protocol (SOAP) enables service binding and invocation using standards based protocols such as HTTP and JMS.

  *

  The platform for SOA should support the WS-* standards

  Note: Openness is the property of distributed systems such that each subsystem is continually open to interaction with other systems. Web services protocols are standards which enable distributed systems to be extended and scaled. In general, an open system that scales has an advantage over a perfectly closed and self-contained system.

  References:

• Question 66:

  Which statement best describes the role of the Data Normalization Layer within the Logical view of the Service-Oriented Integration (SOI) architecture?

  A. The Data Normalization Layer converts all data formats to third normal form to facilitate database access.

  B. The Data Normalization Layer converts all data formats to XML to facilitate platform independent.

  C. The Data Normalization Layer hides the complexity of the multiple data formats used by back end systems by converting data to standardized formats.

  D. The Data Normalization Layer stores persistent data in a normalized format.

  E. The Data Normalization Layer provides normalized access to all databasesiIncluded as back-end systems in the architecture.

  Correct Answer: C

  Explanation:

  The Data Normalization Layer provides a standardized format for data entities. Each EIS stores data in its

  own (usually proprietary) format. This layer transforms the data to a form that is readily consumable by the

  upper layers in the architecture.

  The primary purpose of this layer in the architecture is to encapsulate and hide the complexity of the data

  models and formats used by the back-end systems. This allows the upper layers in the architecture to

  operate on data entities that match the needs of the business rather than operating on data that match the

  storage approach of the back-end systems.

  References:

• Question 67:

  Select the most appropriate reason why three-tier architecture is a better architectural choice than simple client-server architecture for complex enterprise applications.

  A. Three-tier architecture uses three threads to run the applications, so performance is better.

  B. Three-tier architecture combines presentation, business logic, and data processing of business logic, data, and presentation. This allows the tiers to be independently scaled to maximize the investment.

  C. Three-tier architecture combines presentation, business logic, and data processing into a single layer to eliminate network latencies.

  D. Three-tier architecture moves all processing to the client, thereby reducing the load on the server.

  Correct Answer: B

  Explanation: Three-tier architecture allows the data tier and middle tier to scale independently. It also allows multiple clients to share the business logic running in the middle tier. This makes distribution of the application a lot easier. Since security, transactions management, and connection management are handled in the middle tier, it gives better control of the resources. Three-tier architecture is more scalable than the simple client-server model and requires less powerful client side machines. Due to these characteristics this architecture is suitable for small to medium enterprise deployments.

  Note: Distributed programming typically falls into one of several basic architectures or categories such as Client-server, three-tier architecture, and N-tier architecture. In the three tier architecture, business logic is handled in the middle tier, presentation rendering is handled on the client and data management is handled in the backend. This architecture allows multiple clients to access centrally deployed business logic components. This allows centralized distribution and management of resources.

  References:

• Question 68:

  Which of the following are capabilities provided by the Monitoring Engine within the Logical view of the Management and Monitoring architecture?

  A. Resource Monitor

  B. System Monitor

  C. Collection Monitor

  D. Service Monitor

  Correct Answer: ABD

  Explanation:

  Logocal View, Monitoring Engine:

  

  Note: The Monitoring Engine contains a number of monitoring sub-systems which respond to scheduled events, and specific user actions within the management console in making various requests for data to be collected from various managed targets. In addition, these monitoring sub-systems integrate with each other to offer the administrator full discovery and drill down capabilities.

  References:

• Question 69:

  Which of the following are benefits of three-tier distributed computing?

  A. It allows separation and independent scaling of the data tier and middle/business tier

  B. Management of security, transaction, and connection are handled in the middle tier.

  C. It allows the client to query the database directly.

  D. It improves the performance of the application tenfold.

  Correct Answer: AB

  Explanation: Three-tier architecture allows the data tier and middle tier to scale independently (A). It also allows multiple clients to share the business logic running in the middle tier. This makes distribution of the application a lot easier. Since security, transactions management, and connection management are handled in the middle tier, it gives better control of the resources (B). Three-tier architecture is more scalable than the simple client-server model and requires less powerful client side machines. Due to these characteristics this architecture is suitable for small to medium enterprise deployments.

  Note: Distributed programming typically falls into one of several basic architectures or categories such as Client-server, three-tier architecture, and N-tier architecture. In the three tier architecture, business logic is handled in the middle tier, presentation rendering is handled on the client and data management is handled in the backend. This architecture allows multiple clients to access centrally deployed business logic components. This allows centralized distribution and management of resources.

  References:

• Question 70:

  Which statement best describe the benefits of asset dependency tracking?

  A. Tracking the asset dependencies allows you to performiImpact analysis when changes need to occur.

  B. It is a governance mechanism to control and streamline changes to the assets.

  C. Dependency tracking improves the quality of code by ensuring 100% code coverage.

  D. Dependency tracking improves the performance by collocating related assets.

  Correct Answer: A

  Explanation: As the number of assets grow rapidly, the interdependencies become hard to track if not managed properly. Dependency tracking is beneficial as the number of assets increases, the relationships become more complex, and the need to revise or retire assets arises. Tracking the dependencies allows us to perform impact analysis when changes need to occur. This goes both ways - one may need to understand the dependencies an asset has, if the asset needs to be changed, moved, or virtualized; or one may need to understand what assets depend on a particular resource, if that resource needs to be modified, retired, or moved.

  References: