Which statement is FALSE regarding WebLogic Server 12c?
A. supports Java EE 6.0
B. supports WebLogic Web Services 8.1 Application Environment
C. includes a new Maven plug-in
D. supports use of annotations in resource adapter class files
Correct Answer: B
Incorrect: Not A: New or enhanced WebLogic 12c features include JAVA EE 6 support all kinds of JEE6 specifications Not C: 12c do include a new Maven plug-in Not D: For 1.6 adapters, you can embed metadata annotations in the resource adapter class files to specify deployment information, eliminating the need to create the ra.xml file manually.
Question 52:
Which is the correct WebLogic Server distribution version to download if you want to install WebLogic Server 12c to run in 64 bit mode on a 64 bit Linux X86?
A. Linux x86 with 64 bit JVM
B. ZIP distribution for Linux
C. Linux x86 with 32 bit JVM
D. Generic distribution
E. Network installer
Correct Answer: C
WebLogic Server 12c (12.1.1), WebLogic Server 11g (10.3.6)
The following provides links to WebLogic Server 12.1.1 installers with 32-bit JVMs for Windows and Linux, the generic installer that can be used on any supported platform, and the zip distribution
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Installers with Oracle WebLogic Server, Oracle Coherence and Oracle Enterprise Pack for Eclipse
*
Installers with Oracle WebLogic Server and Oracle Coherence:
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Zip distribution with Oracle WebLogic Server only and intended for WebLogic Server development only.
Question 53:
In WebLogic, the development feature to automatically load/refresh the changes of a Java classes at run time is called__________.
A. HotSwap
B. FastSwap
C. HotDeploy
D. FastDeploy
E. FastReload
Correct Answer: B
Using FastSwap Deployment to Minimize Redeployment
Java EE 5 introduces the ability to redefine a class at runtime without dropping its ClassLoader or abandoning existing instances. This allows containers to reload altered classes without disturbing running applications, vastly speeding up iterative development cycles and improving the overall development and testing experiences. The usefulness of the Java EE dynamic class redefinition is severely curtailed, however, by the restriction that the shape of the class its declared fields and methods cannot change. The purpose of FastSwap is to remove this restriction in WLS, allowing the dynamic redefinition of classes with new shapes to facilitate iterative development.
With FastSwap, Java classes are redefined in-place without reloading the ClassLoader, thereby having the decided advantage of fast turnaround times. This means that you do not have to wait for an application to redeploy and then navigate back to wherever you were in the Web page flow. Instead, you can make your
changes, auto compile, and then see the effects immediately.
Reference: Using FastSwap Deployment to Minimize Redeployment
Question 54:
You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the WebLogic Node Manager to start servers for each product. Which statement is true?
A. You need to install a separate node manager for each Middleware Home that has a unique and minor WebLogic Version Number.
B. You need to install and configure only one instance of Node Manager for all products, regardless of the WebLogic version number.
C. You need to install and configure a separate Node Manager for each domain of each product want to run on the machine.
D. You need to install one Node Manager but use separate SSL certificates for each product when securing the network communication to the machine.
Correct Answer: B
Note:
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A Node Manager process is not associated with a specific WebLogic domain but with a machine. You can use the same Node Manager process to control server instances in any WebLogic Server domain, as long as the server instances reside on the same machine as the Node Manager process. Node Manager must run on each computer that hosts WebLogic Server instances--whether Administration Server or Managed Server--that you want to control with Node Manager.
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In managing multiple servers, Node Manager uses multiple configuration files and outputs log files to multiple directories.
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nodemanager.domains This file contains mappings between the names of domains managed by Node Manager and their corresponding directories.
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Node Manager in the WebLogic Server Environment
Reference; Node Manager Administrator's Guide for Oracle WebLogic Server 12c
Question 55:
You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the WebLogic Node Manger to start servers for each product. Which statement is true?
A. You need to install a separate node manager for each Middleware Home that has a unique major and minor WebLogic Version Number.
B. You need to install and configure only one instance of Node Manager for all products, regardless of the WebLogic version number.
C. You need to install and configure a separate Node Manager for each domain of each product you want to run on the machine.
D. You need to install one Node Manager but use separate SSL certificates for each product when searching the network communication to the machine
Correct Answer: B
Note:
*
In managing multiple servers, Node Manager uses multiple configuration files and outputs log files to multiple directories.
*
nodemanager.domains This file contains mappings between the names of domains managed by Node Manager and their corresponding directories.
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Node Manager in the WebLogic Server Environment
Reference; Node Manager Administrator's Guide for Oracle WebLogic Server 12c
Question 56:
What does the Web Session Affinity feature of Active GridLink for RAC provide?
A. It mandates that HTTP sessions must be stored in an Oracle RAC database for the highest throughput and availability.
B. It pins a connection to the thread associated with a web session such that subsequent connection reservations are significantly faster.
C. It stores a reference to the connection associated with an HTTP session in the session object.
D. It allows developers to modify how their web application reserves and releases database connections to allow enhanced performance.
E. It provides improved performance by associating a database connection with an HTTP session.
Correct Answer: E
Session Affinity Policy
Web applications where a user session has back-to-back online transaction processing (OLTP) have
better performance when repeated operations against the same set of records are processed by the same
RAC instance. Business applications such as online shopping and online banking are typical examples of
this pattern.
A GridLink data source uses the Session Affinity policy to ensure all the data base operations for a web
session, including transactions, are directed to the same Oracle RAC instance of a RAC cluster.
Note:
The context is stored in the HTTP session. It is up to the application how windows (within a browser or
across browsers) are mapped to HTTP sessions.
Note 2:
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GridLink Affinity WebLogic Server GridLink affinity policies are designed to improve application performance by maximizing RAC cluster utilization. A GridLink data source monitors RAC load balancing advisories (LBAs) using the AffEnabled attribute to determine if RAC affinity is enabled for a RAC cluster. The first connection request is load balanced using Runtime Connection Load- Balancing (RCLB) and is assigned an Affinity context. All subsequent connection requests are routed to the same Oracle RAC instance using the Affinity context of the first connection until the session ends or the transaction completes.
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Session Affinity
Reference; Configuring and Managing JDBC Data Sources for Oracle Weblogic server 12c, Using GridLink Data Sources
Question 57:
Identify four features of WebLogic that provide value above and beyond a simple Java EE container.
A. Active GridLink for RAC
B. support for enterprise Web Services standards beyond Java EE specification
C. Integration with Enterprise Manager
D. market leading performance
E. Java EE6 Specification Support
F. Java SE 7 support
Correct Answer: ABEF
B: Java EE Enterprise Web Services is supported.
E: New or enhanced WebLogic 12c features include
JAVA EE 6 support all kinds of JEE6 specifications are implemented like :
JSF 2.0,Java Servlets 3.0 JPA 2.0 and EJB 3.1.
Managed Beans 1.0
F: WebLogic 12c also supports supports Java SE 7 (and Java SE 6).
Java language optimizations and Internationalization Client and server support SSL/TLS 1.2 in JSSE to support JAVA Socket Transport security Converged Java VM:JRockit and HotSpot are incorporated with the best features from both. Oracle's Publisher Seminar 2011 during OOW
Incorrect: not C:
Question 58:
What is the name of the WebLogic specific deployment descriptor of Java Enterprise Application?
A. application.xml
B. weblogic.xml
C. web.xml
D. weblogic-application.xml
E. config.xml
Correct Answer: B
The WebLogic Server-specific deployment descriptor weblogic.xml. If your Web application does not
contain a weblogic.xml deployment descriptor, WebLogic Server automatically selects the default values of
the deployment descriptor elements.
Note:
A Web archive (WAR file) contains the files that make up a Web application. A WAR file is deployed as a
unit on one or more WebLogic Server instances. A WAR file deployed to WebLogic Server always includes
the following files:
*
One servlet or Java Server Page (JSP), along with any helper classes.
*
An optional web.xml deployment descriptor, which is a Java EE standard XML document that describes the contents of a WAR file.
*
A weblogic.xml deployment descriptor, which is an XML document containing WebLogic Server-specific elements for Web applications.
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A WAR file can also include HTML or XML pages and supporting files such as image and multimedia files.
Reference: weblogic.xml Deployment Descriptor Elements
Question 59:
An application that needs to use a shared library has a deployment descriptor that only specifies the Specification-Version and Extension-Name of the shared library. When the application is deployed, which shared library will be used?
A. The application will go into an ADMIN state and fail to deploy because the Implementation-Version is required.
B. The application will be deployed but the classes in the shared library will not be available.
C. If you are using the WebLogic Admin Console, you will be prompted for the version you want to use; otherwise, the application will fail to deploy.
D. If there are multiple versions of the shared library deployed, WebLogic will use the one with the highest Implementation-Version.
E. If there are multiple versions of the shared library deployed, WebLogic will use the one that was deployed most recently.
Correct Answer: D
An internal application may be configured to always use a minimum version of the same library. Applications that require no specific version can be configured to use the latest version of the library.
Note:
* Specification-Version (a manifest Attributes for Java EE Libraries) An optional String value that defines the specification version of the shared Java EE library. Referencing applications can optionally specify a required Specification-Version for a library; if the exact specification version is not available, deployment of the referencing application fails.
The Specification-Version uses the following format:
Major/minor version format, with version and revision numbers separated by periods (such as "9.0.1.1")
Referencing applications can be configured to require either an exact version of the shared Java EE library, a minimum version, or the latest available version.
*
Implementation-Version (a manifest Attributes for Java EE Libraries) An optional String value that defines the code implementation version of the shared Java EE library. You can provide an Implementation-Version only if you have also defined a Specification-Version.
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Extension-Name (a manifest Attributes for Java EE Libraries) An optional string value that identifies the name of the shared Java EE library. Referencing applications must use the exact Extension-Name value to use the library.
As a best practice, always specify an Extension-Name value for each library. If you do not specify an extension name, one is derived from the deployment name of the library. Default deployment names are different for archive and exploded archive deployments, and they can be set to arbitrary values in the deployment command.
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After a library is deployed, the extension-name, specification-version and implementation- version of the library can be found in Administration console.
Reference: Creating Shared Java EE Libraries and Optional Packages
Question 60:
Integration between _______ multidata sources and _____ is defined as the Grid Link for RAC.
A. Oracle WebLogic Server; Oracle Database
B. Oracle WebLogic Server clusters; Oracle Database
C. Oracle WebLogic Server clusters; Oracle Database RAC
D. Oracle OC4J; Oracle Database RAC
E. Oracle WebLogic Server; Oracle OC4J
Correct Answer: C
The WebLogic Server JDBC subsystem has supported Oracle RAC since WLS version 8.1 SP5, originally developed for Oracle9i RAC. This support is based on a particular type of data source configuration, called a multi data source. A multi data source is a data source abstraction over one or more individual data sources. It serves JDBC connections from each of the member data sources according to a specified policy2. A RAC multi data source configuration requires that each member data source obtain connections to a particular RAC instance, as illustrated in the following diagram of a three-node RAC cluster configuration.
Reference: Oracle WebLogic Server Active GridLink for Oracle Real Application Clusters(RAC)
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