Pass4sure.1z q. 1z Oracle WebLogic Server 12c Essentials

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1 Pass4sure.1z q Number: 1z0-599 Passing Score: 800 Time Limit: 120 min File Version: z0-599 Oracle WebLogic Server 12c Essentials Passed Test with 100% score. Don't mug up options as the sequence would be randomized by Vmware. Also try to understand why other options are wrong which will actually help you remember answers. This dump is still valid.thanks From my understanding it's valid ALL Over the World. This dump has more questions, which helpful in pass with great scores. It contains related questions that do not appear in previous dump versions.

2 Exam A QUESTION 1 Identify the three processes that customers can choose for patching WebLogic Server. A. Download patches from My Oracle Support and manage them using Smart Update. B. Use Enterprise Manager to download patches from My Oracle Support and apply patches to WebLogic. C. Download patches from My Oracle Support and manually modify the classpath of the application server (though it is not recommended). D. Download patches from My Oracle Support and apply them using the WebLogic Admin Console. E. Use the Admin Console to connect to My Oracle Support and download patches and then target them to the domain. Correct Answer: ABC A: Oracle Smart Update is a standalone Java application that is automatically installed in the Middleware home utils/bsu directory. Smart Update simplifies the process of applying patches to your WebLogic Server installation. When support makes a patch available for an installed version of WebLogic Server, you download the patch from My Oracle Support and then use Oracle Smart Update to apply it to your installation. Smart Update organizes all available updates for you, and has several features that allow a great deal of customizing in the way various patches are applied and managed in your environment. B: As part of a new Enterprise Manager system, the installation wizard does the following: * Oracle My Oracle Support Management Plug-In etc. C: Applying patch from server start script: After downloading the patch (jar file) follow the below steps: - Stop your server. - Then take the path of the folder which has the CRxxxxxx_xxxmpx.jar file and copy it in the CLASSPATH of setdomainenv.cmd which is in (<bea home>/user_projects/domains/<your domain name>/bin/setdomainenv.cmd) For example, the script would look something like this: set CLASSPATH=%PRE_CLASSPATH%;%WEBLOGIC_CLASSPATH%; C:\extra\my_projects\doc\CR\CR218639_920mp3.jar;C:\extra\my_projects\doc \CR\ CR360676_920mp3.jar;C:\extra\my_projects\doc\CR\CR367966_920mp3.jar; C:\extra\my_projects\doc\CR\CR368155_920mp3.jar;C:\extra\my_projects\doc\CR\CR370311_ 920mp3.jar - Re-start your server.

3 - You should see the patch applied in the stdout file. QUESTION 2 You want to configure WebLogic so that Managed Servers are restarted when they are in a FAILED state. Which three steps are necessary to accomplish this? A. Configure Node Manager on the machines where WebLogic Managed Servers need to be started/restarted. B. Enable "Auto Restart" in the Node Manager Configuration. C. Enable "Auto Kill if Failed" in the Node Manager Configuration. D. Enable "Auto Kill if Failed" for the Managed Server in question. E. Enable "Auto Restart" for the Managed Server in question. Correct Answer: ADE D: auto-kill-if-failed Specifies whether the Node Manager should automatically kill this server (the managed server) if its health state is failed. (Interface=weblogic.management.configuration.ServerMBean Attribute=getAutoKillIfFailed) When Auto Restart is enabled, Node Manager will try to restart the Managed Server if it crashes or goes down unexpectedly, for instance, as the result of a machine reboot. E: When Auto Restart is enabled, Node Manager will try to restart the Managed Server if it crashes or goes down unexpectedly, for instance, as the result of a machine reboot. Reference: Server --> Configuration --> Health Monitoring QUESTION 3 Which four actions can you perform using the WebLogic Admin Console? A. Stop and start Managed Servers using the Node Manager. B. Stop and start Coherence Servers using the Node Manager. C. Create a WebLogic Domain Template. D. Create and target JDBC connection pools. E. Create and target WebLogic Diagnostic Framework Diagnostic Modules. F. Change Java command-line parameters at run time. Correct Answer: ABDF

4 Use the Administration Console to: * (A) Configure, start, and stop WebLogic Server instances * Configure WebLogic Server clusters * (D) Configure WebLogic Server services, such as database connectivity (JDBC) and messaging (JMS) * Configure security parameters, including managing users, groups, and roles * Configure and deploy your applications * Monitor server and application performance * View server and domain log files * View application deployment descriptors * (F) Edit selected run-time application deployment descriptor elements * (B) Control (start, stop, and restart) standalone Coherence cache servers * (B) Create and configure Coherence clusters Incorrect: Not C: The separate Domain Template Builder is used for creating Domain Templates. QUESTION 4 What is the architectural benefit of keeping WebLogic Server transaction log in the database? A. Oracle does not allow replicating files between data centers, so keeping transaction log in database allows for replication. B. Many transactions in WebLogic are database centric, so keeping log in database makes Two Phase Commit protocol possible. C. It obviates the need to keep in sync two replication technologies (file and database) between data centers. The single replication technology is used for frequently changing data. D. Transaction log in a file system is extremely slow so it cannot be efficiently replicated. Correct Answer: C

5 You can configure a JDBC TLOG store to persist transaction logs to a database, which provides the following benefits: * Leverages replication and HA characteristics of the underlying database. * Simplifies disaster recovery by allowing the easy synchronization of the state of the database and TLOGs. * Improved Transaction Recovery service migration as the transaction logs to do not need to be migrated (copied) to a new location. * You can configure a JDBC TLOG store to persist transaction logs to a database, which allows you to leverage replication and HA characteristics of the underlying database, simplify disaster recovery, and improve Transaction Recovery service migration. incorrect: not B: Read-only, One-phase Commit Optimization requires Oracle DB PSU or above. QUESTION 5 In a Java EE messaging application, one MDB is consuming a lot of memory at high traffic. What configuration should you use to prevent possible out-of-memory error at high traffic and at the same time not losing messages? A. Configure a Work Manager for the MDB with a Maximum Thread Constraint. B. Configure a Work Manager for the MDB with a Minimum Thread Constraint. C. Configure a Work Manager for the MDB with a Maximum Thread Constraint and a Capacity Constraint. D. Configure a Work Manager for the MDB with a Minimum Thread Constraint and a Capacity Constraint. E. Configure a Work Manager for the MDB with both a Maximum Thread Constraint and Minimum Thread Constraint. Correct Answer: B * * When to Use Work Managers Following are guildelines to help you determine when you might want to use Work Managers to customize thread management: / The default fair share is not sufficient. This usually ocurrs in situations where one application needs to be given higher priority over another. / A response time goal is required.

6 / A minimum thread constraint needs to be specified to avoid server deadlock QUESTION 6 A customer is developing a custom application that involves a multistep provisioning process for a new account. There is a custom Java client application that is generating multiple JMS messages as part of the process and sending them to the WebLogic tier where they are processed. Which three steps must you take to implement the solution to allow for scalability and parallel processing of multiple simultaneous provisioning requests while ensuring messages for an individual process are not delivered out of order? A. Update the client application that is creating the JMS messages to use Unit of Work. B. Configure a WebLogic Cluster for Distributed JMS. C. Update the client application that is creating the JMS messages to use Unit of Order. D. Enable XA Transactions on the JMS Connection Factory used by the client application. E. Enable Load Balancing on the JMS connection factory used by the client application. Correct Answer: BCD C: Message Unit-of-Order is a WebLogic Server value-added feature that enables a stand-alone message producer, or a group of producers acting as one, to group messages into a single unit with respect to the processing order. This single unit is called a Unit-of-Order and requires that all messages from that unit be processed sequentially in the order they were created. D Transactions required for parallel processing. Incorrect: A: Many applications need an even more restricted notion of a group than provided by the Message Unit-of-Order (UOO) feature. If this is the case for your applications, WebLogic JMS provides the Unit-of-Work (UOW) Message Groups, which allows applications to send JMS messages, identifying some of them as a group and allowing a JMS consumer to process them as such. For example, an JMS producer can designate a set of messages that need to be delivered to a single client without interruption, so that the messages can be processed as a unit. Further, the client will not be blocked waiting for the completion of one unit when there is another unit that is already complete. * WebLogic JMS defines two default connection factories, which you can look up using the following JNDI names: weblogic.jms.connectionfactory weblogic.jms.xaconnectionfactory Reference: Using Message Unit-of-Order QUESTION 7

7 You completed the development of a new application and want to create a new domain in a new environment for functional testing. You want to have the same settings for your new domain as your old domain, with the option of changing the configuration in the new target environment. Which two actions should you execute? A. Use the introspect () command in WLST to gather the configuration information from the original domain. B. Use pack/unpack to transfer the domain from one machine to another. C. Create a domain template from the original domain using the Domain Template Builder and use the Configuration Wizard to create a new domain from the template. D. Use the Admin Console of the original domain to create a domain template from the original domain and use the Configuration Wizard to create a new domain from the template. Correct Answer: C Using the Domain Template Builder to Create Domain Templates To create a domain, start the Configuration Wizard and choose a domain configuration template. Reference: Creating and Configuring Domains Using the Configuration Wizard QUESTION 8 You want to capture WebLogic internal events correlated with JVM events for viewing offline. What three actions must you take to enable this within WebLogic? A. Run WebLogic in a JRockit JVM and ensure the Flight Recorder is enabled. B. Configure the WebLogic Diagnostic Framework Event Volume to Low, Medium, or High depending on the type of events you want to capture. C. Configure the WebLogic Diagnostic Framework bridge to send events to the JRockit Flight Recording. D. Take a dump from the default recording or create a new recording for the time period you want to capture. Correct Answer: ABD A: You can enable JFR at runtime to take JRA recordings from the JRockit Management Console. You also have the option of turning off the JFR and recordings at the JRockit JVM level from the java command line using: $ java -XX:-FlightRecorder B:

8 * In most environments, there is little performance impact when the Diagnostic Volume is set to Low and the most performance impact if Diagnostic Volume is set to High. The volume of diagnostic data produced by WebLogic Server needs to be weighed against potential performance loss. * WLDF provides the Diagnostic Volume attribute to set the amount of code coverage that is enabled and the amount of data provided in the events that are generated for the covered code The following code example sets the volume to Medium:... connect() edit() startedit() cd("servers/myserver") cd("serverdiagnosticconfig") cd("myserver") cmo.setwldfdiagnosticvolume("medium") save() activate() D: Integrated with the WebLogic Diagnostic Image and Watch and Notification system Enables capture based on system state, event capture during event; no need to replicate Watch for stuck thread count, heap size increase, available memory, etc. Set up notifications: capture WLDF image Diagnostic image capture spurs JFR file generation; JFR file included in diagnostic image Includes full JFR data from all event generators * WebLogic Diagnostic Framework (WLDF) provides specific integration points with JRockit Mission Control Flight Recorder. WebLogic Server events are propagated to the Flight Recorder for inclusion in a common data set for runtime or post-incident analysis. Reference: Oracle Fusion Middleware Performance and Tuning for Oracle WebLogic Server, Tuning WebLogic Diagnostic Framework and JRockit Flight Recorder Integration Reference: JRockit Flight Recorder & WebLogic Diagnostic FrameWork (WLDF) Integration QUESTION 9 You have a domain that was created and configured with WebLogic You want to upgrade the domain to use WebLogic 12c. Which Oracle tool must you use to upgrade your domain? A. Oracle WebLogic Domain Upgrade tool B. Smart Update C. Smart Upgrade D. No tool required, just install WebLogic 12c, update the domain to point to the new WebLogic installation and start your domain. E. JDeveloper Correct Answer: D

9 You can use the WebLogic Upgrade Wizard to upgrade domains created in WebLogic Server 8.1. You can also use the WebLogic Upgrade Wizard to upgrade a WebLogic domain created in WebLogic Server 9.x or 10.x to , but this is optional. QUESTION 10 A customer has a development environment that uses the auto-deployment feature. The customer claims the application is not redeployed even if the new version is copied to an application subdirectory. Which two parameters of the configuration should you check? A. Check if archive file in the compressed version has a new REDEPLOY file. B. If server was started in the Development Mode. Auto-deployment is not supported in production mode. C. If the application includes an EJB 3 module. Auto-deployment is not supported for EJBs. D. You change JVM from HotSpot to JRockit. Auto-deployment is not supported in HotSpot auto deployment. E. If the domain is a single-server domain. Auto-deployment is not supported in multiserver domains. Correct Answer: BE Auto-deployment is intended for use with a single server target in a development environment. * If auto-deployment is enabled, when an application is copied into the \autodeploy directory of the Administration Server, the Administration Server detects the presence of the new application and deploys it automatically (if the Administration Server is running). If WebLogic Server is not running when you copy the application to the \autodeploy directory, the application is deployed the next time the WebLogic Server Administration Server is started. Auto-deployment deploys only to the Administration Server. * Limitations of Auto-Deployment Auto-deployed applications are very convenient in a development environment, but there are some limitations: There is no configuration in config.xml for an auto-deployed application. Therefore, in the Administration Console, there are no notes or target pages associated with an auto-deployed application because there is no backing configuration for that information. You cannot associate an auto-deployed application with a deployment plan since auto-deployed applications do not support any configuration operations which would be reflected in a deployment plan. You cannot set up security policies or roles for auto-deployed applications.

10 You cannot undeploy or redeploy auto-deployed applications using WebLogic Server tools. Reference; Developing Applications for Oracle WebLogic Server 12c, Auto-Deploying Applications in Development Domains QUESTION 11 Which new key architectural element introduced in WebLogic Server l2c should you take advantage of when designing Disaster Recovery Centers with active - passive mode? A. MAN Clusters, because they would allow you to synchronously replicate state in low latency networks B. WAN Clusters, because they would allow you to asynchronously replicate state in nonlow latency networks. C. Transaction Log in the database, because you could avoid synchronizing two replication technologies (database and file) D. Data Guard, because it is the most effective way to replicate a state across locations E. GoldenGate, because it is the most effective way to replicate a state across locations Correct Answer: E * Oracle GoldenGate Oracle GoldenGate is Oracle's strategic product for data distribution and data integration. It is a highperformance software application that uses log-based bidirectional data replication for real- time capture, transformation, routing, and delivery of database transactions across heterogeneous systems. * Oracle Active Data Guard Oracle Active Data Guard 11g is an option of Oracle Database Enterprise Edition that extends basic Data Guard functionality. It allows a physical standby database to be open as read-only while changes are applied to it from the primary database. This increases performance and return on investment by offloading ad-hoc queries, Web-based access, reporting, and backups from the primary database while also providing disaster protection. * Disaster recovery (DR) procedures ensure rapid recovery or continuation of a technology infrastructure after a natural or human-induced disaster. Oracle WebLogic Server 12c supports advanced disaster recovery and business continuity. Organizations can store transaction logs in an Oracle database instead of a file system, providing a highly available storage mechanism to improve the speed and reliability of disaster recovery operations. This permits them to utilize Oracle Active Data Guard or Oracle GoldenGate replication technology to move DR state information across data centers. Oracle's enhanced DR architecture enables more effective recovery scenarios. Support for Oracle Exalogic and Oracle Exadata engineered systems ensures tremendous scalability for IT operations of any size. * Oracle WebLogic Server 12c places transaction logs on the database tier to improve the speed, reliability and availability of disaster recovery operations.

11 QUESTION 12 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.

12 Reference: Oracle WebLogic Server Active GridLink for Oracle Real Application Clusters(RAC) QUESTION 13 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. * 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.

13 The Specification-Version uses the following format: Major/minor version format, with version and revision numbers separated by periods (such as " ") 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. * 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. * 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 14 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: D 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. 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:

14 * 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. * 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 15 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:

15 QUESTION 16 You want to use WLST to view metrics for a running domain. Which command should you issue to navigate through the Mbean hierarchy containing the metrics? A. runtime () B. runtimembeanserver () C. connectruntime () D. beginruntime () E. serverruntime () Correct Answer: E Similar to the configuration information, WebLogic Server runtime MBeans are arranged in a hierarchical data structure. When connected to an Administration Server, you access the runtime MBean hierarchy by entering the serverruntime or the domainruntime command. The serverruntime command places WLST at the root of the server runtime management objects, ServerRuntimeMBean; the domainruntime command, at the root of the domain-wide runtime management objects, DomainRuntimeMBean. Reference: WebLogic Scripting Tool, Browsing Runtime MBeans QUESTION 17 Which two statements are true regarding the WebLogic domain?

16 A. A WebLogic domain can have more than one Administration server. B. A WebLogic domain has at least one WebLogic server. C. A WebLogic domain can have at the most one cluster. D. A WebLogic domain can cross multiple physical machines. E. Each WebLogic domain is associated with a different Node Manager. Correct Answer: BD B: A domain consists of one or more WebLogic Server instances (and their associated resources) that you manage with a single Administration Server. D: In a domain, server instances other than the Administration Server are referred to as Managed Servers. Managed Servers host the components and associated resources that constitute your applications. Incorrect: Not A: Each WebLogic Server domain must have one server instance that acts as the Administration Server. Not C: A domain can include multiple WebLogic Server clusters and non-clustered WebLogic Server instances. Not E: 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. Reference: Overview of WebLogic Server Domains QUESTION 18 What does the Fast Connection Failover feature of Active GridLink for RAC provide? A. instant notification of a RAC node failure so applications never have to retry a transaction that was sent to a node that failed during the transaction B. near-instant notification of the failure of a RAC node failure that minimizes the possibility connection to a failed node being provided to an application

17 C. application level notification of a failed RAC node such that an application can retry a transaction if required D. faster failover for Multi Datasources E. guaranteed transaction high availability when interacting with an Oracle RAC Database Correct Answer: B * WebLogic Server supports Fast Connection Failover, a Oracle feature which provides an application independent method to implement RAC event notifications, such a detection and cleanup of invalid connections, load balancing of available connections, and work redistribution on active RAC instances. * A GridLink data source uses Fast Connection Failover and responds to Oracle RAC events using ONS. This ensures that the connection pool in the GridLink data source contains valid connections (including reserved connections) without the need to poll and test connections QUESTION 19 What are the two proper locations of deployment descriptors files inside of archives deployed to WebLogic? A. the WEB-INF subdirectory for a WAR file B. the META-INF subdirectory for an EAR file, or EJB-JAR C. the DD-INF subdirectory D. the root of archive E. any searchable location Correct Answer: AB A: * The WEB-INF directory contains the deployment descriptors for the Web application (web.xml and weblogic.xml) and two subdirectories for storing compiled Java classes and library JAR files. * Web Application - WEB-INF/web.xml ( WEB-INF/weblogic.xml ) The WEB-INF directory is a vital component of your web application. Web application wont run without it.it contains a heirarcy in which you'll find the necessary configuration information for your web application, and all the class files for your servlets and classes that are called up by your JSPs. WEB-INF folder contains all the class files for your servlets and classes that are called up by your JSPs B: Enterprise Application - META-INF/application.xml (META-INF/weblogic-application.xml) and META-INF/ejb-jar.xml ( META-INF/weblogic-ejb-jar.xml ) Generally

18 comprises of EJBs. Bussiness Tier of an application and EJB basically handels the Bussiness logic of application (distributed objects) META-INF/application.xml containes Mappings and security roles etc.whereas META-INF/ejb- jar.xml containes ejb classes, session beans mapping etc., The META-INF directory is related to.jar files, It contains the manifest file which has list of jars. A context-root setting in application.xml takes precedence over context-root setting in weblogic.xml (The context root of a web application determines which URLs weblogic will delegate to your web application. * Deployment descriptors are xml documents that describe runtime behaviour for the deployment unit. The XML file contains information such as the context root of the web application and the mapping of the portable names of an application's resources to the application Server's resources QUESTION 20 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 21

19 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 * 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. * 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. * Node Manager in the WebLogic Server Environment

20 Reference; Node Manager Administrator's Guide for Oracle WebLogic Server 12c QUESTION 22 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

21 * 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. * Node Manager in the WebLogic Server Environment Reference; Node Manager Administrator's Guide for Oracle WebLogic Server 12c

22 QUESTION 23 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. 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: * 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. * Session Affinity

23 Reference; Configuring and Managing JDBC Data Sources for Oracle Weblogic server 12c, Using GridLink Data Sources QUESTION 24 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

24 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 25 A customer has a web application with HTTP Sessions that need to be replicated to a backup site that is more than 100 miles away from the primary site, connected over the Internet. Which type of session replication in WebLogic is recommended? A. MAN Replication B. WAN Replication C. Synchronous Replication D. Asynchronous Replication E. Database Replication Correct Answer: D WAN HTTP Session State Replication Resources in a wide area network (WAN) are frequently spread across separate geographical regions. In addition to requiring network traffic to cross long distances, these resources are often separated by multiple routers and other network bottle necks. Network communication in a WAN generally has higher latency and slower interconnect. Slower network performance within a WAN makes it difficult to use a synchronous replication mechanism like the one used within a MAN. WebLogic Server provides failover across clusters in WAN by using an asynchronous data replication scheme. HTTP Session State Replication Weblogic Server uses two methods for replicating HTTP session state across clusters: in-memory replication * Using in-memory replication, WebLogic Server copies a session state from one server instance to another. The primary server creates a primary session state on the server to which the client first connects, and a secondary replica on another WebLogic Server instance in the cluster. The replica is kept up-to-date so that it may be used if the server that hosts the servlet fails. * JDBC-based persistence In JDBC-based persistence, WebLogic Server maintains the HTTP session state of a servlet or JSP using file-based or JDBC-based persistence. JDBC-based persistence is also used for HTTP session state replication within a Wide Area Network (WAN).

25 QUESTION 26 Which three scenarios are true about Domains? A. Domains can be created using the Configuration Wizard. B. Domains can be created using WLST. C. Domain configuration files are located in the WebLogic home directory. D. Domains can be created based on a domain template. Correct Answer: ABD A: a WebLogic domain can be created by using the Configuration Wizard in graphical mode. B: WLST enables you to create a new domain or update an existing domain D: A domain template is a JAR file that contains domain configuration documents, applications, security data, startup scripts, and other information needed to create a domain. QUESTION 27 Identify three components of the WebLogic JMS architecture. A. JMS Server B. JMS Module C. Node Manager D. Queue Manager E. Persistent Store Correct Answer: ABE The major components of the WebLogic JMS Server architecture, as illustrated in the figure below. * (A) JMS servers that can host a defined set of modules and any associated persistent storage that reside on a WebLogic Server instance. * (B) JMS modules contains configuration resources (such as queues, topics, and connections factories) and are defined by XML documents that conform to the weblogic-jmsmd.xsd schema. * Client JMS applications that either produce messages to destinations or consume messages from destinations. * JNDI (Java Naming and Directory Interface), which provides a resource lookup facility. JMS resources such as connection factories and destinations are

26 configured with a JNDI name. The runtime implementations of these resources are then bound into JNDI using the given names. * (E) WebLogic persistent storage (file store or JDBC-accessible) for storing persistent message data. The following figure illustrates the WebLogic JMS architecture. Reference: Understanding WebLogic JMS QUESTION 28 How can you configure High Availability for interacting with a non-oracle database using WebLogic? A. Configure multiple physical data sources and reuse the same JNDI name for each. B. Use the "compatibility" option of Active GridLink to enable compatibility with non-oracle databases. C. Configure a single physical data source for each node in a database cluster and wrap it using Multi Data Source. D. Configure a Data Source Group that contains a physical connection pool to each node in the database cluster. Correct Answer: C

27 * A multi data source can be thought of as a pool of data sources. Multi data sources are best used for failover or load balancing between nodes of a highly available database system, such as redundant databases or Oracle Real Application Clusters (Oracle RAC). * (not B) A single GridLink data source provides connectivity between WebLogic Server and an Oracle Database service, which may include multiple Oracle RAC clusters * High Availability Storage Solutions If you have applications that need access to persistent stores that reside on remote machines after the migration of a JMS server or JTA transaction log, then you should implement one of the following highly-available storage solutions: / File-based stores (default or custom)--implement a hardware solution, such as a dual-ported SCSI disk or Storage Area Network (SAN) to make a file store available from shareable disks or remote machines. / JDBC-accessible stores--configure a JDBC store or JDBC TLOG store and use JDBC to access this store, which can be on yet another server. Applications can then take advantage of any high-availability or failover solutions offered by your database vendor. In addition, JDBC stores support GridLink data sources and multi data sources, which provide failover between nodes of a highly available database system, such as Oracle Real Application Clusters (Oracle RAC). Reference: Oracle Fusion Middleware Configuring Server Environments for Oracle WebLogic Server 12c, High Availability Storage Solutions QUESTION 29 Which feature is enabled when you start a WebLogic server with the DserverType=wlx option? A. JDBC B. JCA C. JMS D. EJB E. Java EE Correct Answer: A -DserverType={"wls" "wlx"} Specifies the Server Type, which determines the set of services that are started in the server runtime. The default is "wls", which starts all WebLogic Server services, including EJB, JMS, Connector, Clustering, Deployment, and Management.

28 The "wlx" option starts a server instance that excludes the following services, making for a lighter weight runtime footprint: * (not D) Enterprise JavaBeans (EJB) * (not B, not E) Java EE Connecter Architecture (JCA) * (not C) Java Message Service (JMS) Reference: Oracle Fusion Middleware Command Reference for Oracle WebLogic Server, Options for Configuring Deployment Attributes QUESTION 30 Identify three unique integration features of Spring and WebLogic Server. A. ability to automatically convert Spring application to JavaEE 6 framework B. ability to export the WebLogic Container feature to another Spring enabled JavaEE server. C. ability to extend the WebLogic Server console with some Spring-related pages D. official support of Spring apps inside WebLogic by Oracle Support E. support for injection of WebLogic MBeans and Resources into Spring applications Correct Answer: CDE C: Spring Console Extension. WebLogic provides an Admin Console extension for Spring to provide administrators with visual tools for monitoring the Spring parts of deployed applications (first navigate to WebLogic Admin Console's Preferences Extension menu option and and enable spring-console). This Spring console extension is basically a set of pages which are added amongst the normal pages of the standard WebLogic admin console, rather than being a separate console per se. The extension provides a view onto the values of the WebLogic generated Spring MBeans D: If you have an issue, you use the Oracle Support organisation for help with WebLogic specific problems and any Spring parts to your application are treated just like your own custom code is, from an Oracle Support perspective. E: WebLogic Injected Spring Beans is a Weblogic feature that is enabled by default. Reference: WebLogic and Spring QUESTION 31 An application is using WebLogic JMS Store and Forward to forward messages from a local JMS queue a remote WebLogic JMS destination. You need to determine if the messages are being sent from the local Weblogic Server. Where do you find information and metrics about Store and Forward components in the WebLogic Admin Console? A. JMS Persistent Store B. JMS Server

29 C. JMS Distributed Destination D. JMS Store and Forward E. Automatic Service Migration Correct Answer: A * Persistent messages are saved in the persistent store on the sending side until they are successfully forwarded to and acknowledged by the receiving side. QUESTION 32 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: D proper answer.. QUESTION 33 Which WebLogic edition bundles JRockit Real Time?

30 A. WebLogic Server Standard Edition B. WebLogic Server Enterprise Edition C. WebLogic Server Suite D. WebLogic Server Grid Edition E. WebLogic Server Cloud Edition Correct Answer: C right. QUESTION 34 Identify three advantages of Active GridLink for RAC over multidata source. A. isolates WebLogic from RAC changes B. has a simple configuration C. enables statement caching D. performs faster failure detection and failover E. is supported in WebLogic Domain Templates Correct Answer: ABD A, B: With Active GridLink for RAC, WebLogic instances are isolated from RAC configuration changes, and DBAs only need to contend with a single data source rather than multiple data sources. D: Active GridLink for RAC distributes work based on different backend node capacities, automatically detecting and adapting to overworked nodes and hangs. It enables smart load balancing across RAC nodes. This makes it easier to route traffic around node failures, enhancing availability and performance. Reference: Introducing WebLogic Server 12c QUESTION 35 Which two elements of the Java Enterprise Application Archive are required? A. EJB Archive B. Deployment Descriptor

31 C. META-INF sub directory D. Resource Adapter archive E. Java library Correct Answer: BC * 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. A WAR file can also include HTML or XML pages and supporting files such as image and multimedia files. QUESTION 36 A customer wants to improve the availability of a web application and provide more predictable scalability when scaling out the application. Which Feature of WebLogic should you recommend to help solve this problem? A. Oracle Web Grid B. ActiveCache C. Coherence Grid Edition D. WebLogic Session Replication E. Coherence Web Edition Correct Answer: E * Built on top of Oracle Coherence (Coherence), Coherence*Web: / brings Coherence data grid's data scalability, availability, reliability, and performance to in- memory session management and storage. / can be deployed to many mainstream application servers such as Oracle GlassFish Server, Oracle WebLogic Server, IBM WebSphere, Tomcat, and so on * Coherence*Web enables HTTP session sharing and management across different Web applications, domains, and heterogeneous application servers. Session data can be stored in data caches outside of the application server, thus freeing application server heap space and enabling server restarts without losing session data. Reference: Oracle Coherence User's Guide for Oracle Coherence*Web

32 QUESTION 37 Which two outcomes result when a domain is created in development mode? A. WebLogic server starts automatically upon the restarting of the machine B. each new cluster will automatically be created with two managed servers C. boot.properties file automatically stored D. creation of an auto deploy folder used for the application to deploy automatically E. Node Manager will be automatically configured Correct Answer: CD C: The saviour of having to type in the username and password each and every time that you start a server. A very useful little file to have, particularly if you have multiple managed servers. By default, this appears in the Admin Servers security directory ($DOMAIN_HOME/servers/AdminServer/security) when a domain is created in development mode and is called boot.properties. The file is only created for the admin server, not for any additional servers; simply copying the security directory over is enough. The password is encrypted for the domain, so it can only be used for servers within that domain. In production mode, the boot.properties file doesn't exist. D: Development mode enables a WebLogic Server instance to automatically deploy and update applications that are in the domain_name/autodeploy directory (where domain_name is the name of a WebLogic Server domain). Production mode disables the auto-deployment feature and prevents any applications you place in the autodeploy directory after you switch to production mode from being deployed. * By default, a WebLogic Server domain runs in development mode. * You can run a WebLogic Server domain in two different modes: development and production. Only development mode allows you use the auto-deployment feature QUESTION 38 A customer has a WebTrade application that initially uses the embedded LDAP to authenticate users. To enhance security, the customer decides to use OAM to authenticate some of the users against an external LDAP store. For this to work, a customer configured an OAMAuthenticator, but was not sure what to select for the Control Flag. What Control Flag should the customer choose? A. OPTIONAL