Oracle Oracle Certifications 1Z0-599 Questions & Answers

• Question 21:

  Which two options best describe how the Maven Plugin for WebLogic enables WebLogic to be effectively used in a Continuous Integration environment?

  A. execution of unit and integration tests

  B. management of the life cycle of a WebLogic domain including creation, configuration, and server lifecycle management

  C. deployment and undeployment of applications

  D. Java profiling

  Correct Answer: AC

  Note:

  *

  Apache Maven is a software tool for building and managing Java-based projects. WebLogic Server provides support for Maven through the provisioning of plug-ins that enable you to perform various operations on WebLogic Server from within a Maven environment.

  *

  Continuous Integration is a software engineering practice which attempts to improve quality and reduce time to deliver software by applying small, frequent quality control efforts. It is characterized by these key practices: Use of a version control system All developers commit to the `HEAD' (main code line) every day The product is built on every commit The build must be automated and fast Automated deployment to a production-like environment Automated testing Results of all builds are published (so everyone can see who broke the build) Deliverables are easily available (for developers, testers, other stakeholders)

• Question 22:

  You deploy two different applications to the WebLogic container. One application use Xerces parser version A and the other application uses Xerces parser version B. Both these versions are different from the parser version that the WebLogic server uses internally. You want to use the Filtering Classloader feature to solve this problem. What action would you take to generate proper filtering Classloader entries?

  A. Modify the applications to use the same version that WebLogic uses internally.

  B. Based on available examples of Filtering Classloader entries, try to modify get the proper entries.

  C. Deploy and use the Classloader Analyzing Tool to resolve all conflicts with conflicting libraries. This tool will generate all proper entries.

  D. Split the application into separate WebLogic containers and use different WLS versions of Xerces but identical that applications require.

  E. Look for a WebLogic release that uses the same version of Xerces that the applications use.

  Correct Answer: B

  Note:

  *

  The FilteringClassLoader provides a mechanism for you to configure deployment descriptors to explicitly specify that certain packages should always be loaded from the application, rather than being loaded by the system classloader. This allows you to use alternate versions of applications such as Xerces and Ant.

  *

  To configure the FilteringClassLoader to specify a certain package is loaded from an application, add a prefer-application-packages descriptor element to the weblogic- application.xml which details the list of packages to be loaded from the application. The following example specifies that org.apache.log4j.* and antlr.* packages are loaded from the application, not the system classloader:

  org.apache.log4j.* antlr.*

  Reference: Understanding WebLogic Server Application Classloading

• Question 23:

  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

  B. REQUISITE

  C. REQUIRED

  D. SUFFICIENT

  E. MANDATORY

  Correct Answer: C

  Note:

  * When you configure multiple Authentication providers, use the JAAS Control Flag for each provider to control how the Authentication providers are used in the login sequence. You can choose the following the JAAS Control Flag settings, among others:

  REQUIRED--The Authentication provider is always called, and the user must always pass its authentication test. Regardless of whether authentication succeeds or fails, authentication still continues down the list of providers.

  SUFFICIENT--The user is not required to pass the authentication test of the Authentication provider. If authentication succeeds, no subsequent Authentication providers are executed. If authentication fails, authentication continues down the list of providers.

  OPTIONAL--The user is allowed to pass or fail the authentication test of this Authentication provider. However, if all Authentication providers configured in a security realm have the JAAS Control Flag set to OPTIONAL, the user must pass the authentication test of one of the configured providers.

  * Example:

  Setting the Order of Providers

  Re-order the OAM Identity Asserter, OID Authenticator, and Default Authenticator by ensuring that the control flag for each authenticator is set as follows:

  OAMAuthenticator (REQUIRED) OracleInternetDirectoryAuthenticator (SUFFICIENT)

  DefaultAuthenticator (SUFFICIENT)

  Reference: Oracle Fusion Middleware Security Guide

• Question 24:

  A customer wants to send JMS messages to a remote WebLogic server from a Java SE application over an unreliable network connection. Which feature of WebLogic JMS will enable the customer to send messages from a Java SE client to a JMS destination that is not always easily reached?

  A. SAF Target

  B. SAF Imported Destination

  C. SAF Client

  D. SAF Server

  E. Distributed SAF JMS

  Correct Answer: C

  . The JMS SAF Client feature extends the JMS store-and-forward service introduced in WebLogic Server

  9.0 to standalone JMS clients. Now JMS clients can reliably send messages to server-side JMS destinations, even when the client cannot reach a destination (for example, due to a temporary network connection failure). While disconnected from the server, messages sent by a JMS SAF client are stored locally on the client file system and are forwarded to server-side JMS destinations when the client reconnects. See Reliably Sending Messages Using the JMS SAF Client.

  Reference: Programming JMS for Oracle WebLogic Server, Using WebLogic JMS SAF Client

• Question 25:

  Which option must you choose to configure Node Manager on a machine (server or zone)?

  A. Configure one Node Manager per domain (for example, if there are two domains on one machine, then you will need to configure two Node Managers).

  B. Configure one Node Manager per machine with any number of WebLogic instances running on it.

  C. Configure one Node Manager per machine for all WebLogic, OHS, and OEM running on the same machine.

  D. Configure one Node Manager for every WebLogic instance.

  E. Configure two or more Node Managers for every WebLogic instance.

  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. Reference: Overview of WebLogic Server Domains

• Question 26:

  Which action cannot be done in a scripted, automated fashion using WLST?

  A. collecting run-time metrics and sending an email if user-defined thresholds are exceeded

  B. configuring Clusters and Managed Servers

  C. starting Managed Servers using the Node Manager

  D. installing WebLogic binaries on a remote machine using Node Manager

  E. configuring a Managed Server on a remote machine where the Node Manager is installed but no other Managed Servers from the domain exist

  Correct Answer: ABC

  A: * WLST can connect to individual Managed Servers to retrieve run-time data.

  * The WebLogic Diagnostic Framework (WLDF) is a monitoring and diagnostic framework that can collect

  diagnostic data that servers and applications generate. You configure WLDF to collect the data and store it

  in various sources, including log records, data events, and harvested metrics.

  B: WLST Online Sample Scripts example scripts include:

  cluster_creation.py

  Connects WLST to an Administration Server, starts an edit session, and creates 10 Managed Servers. It

  then creates two clusters, assigns servers to each cluster, and disconnects WLST from the server.

  C (not E, not D): You can use WLST to do the following with Node Manager:

  *

  Start a Node Manager.

  *

  Connect to a Node Manager, then use the Node Manager to start and stop servers on the Node Manager machine.

  Reference; Oracle WebLogic Scripting Tool 12c

• Question 27:

  Which two IDEs are supported development environments for WebLogic Server 12c in version 12.1.1?

  A. Websphere Developer Studio

  B. NetBeans

  C. InteliJ IDIA

  D. JDeveloper

  E. Eclipse

  F. WebLogic Workshop

  Correct Answer: BE

  E: Oracle Enterprise Pack for Eclipse 12c (12.1.1.2.1) Eclipse Based Enterprise Application Development Oracle Enterprise Pack for Eclipse (OEPE) 12.1.1.2.1 for Eclipse Juno provides tools that make it easier to develop applications utilizing specific Oracle Fusion Middleware technologies and Oracle Database.

  Note:

  * Support for IDE's. WebLogic already supported JDeveloper 11.1.1.5, but will come out with the 11.1.1.6 later on. Also suported are Eclipse and NetBeans 7.1 IDE. The JDeveloper 11.1.1.6 and IntelliJIdea IDE will be supported in a later timeframe.

• Question 28:

  A customer stores environmental settings in the deployment descriptors of an application. Whenever they promote the application version from testing to the production environment, they need to open the archive and modify the deployment descriptor. This process is against their security policy.

  What approach should you recommend to leverage WebLogic features such that they do not have to modify the application archive for different environments?

  A. Keep environmental data in the global settings of domain and the application can read it from the domain where it runs.

  B. Keep environmental data in Deployment Plan XML files. It allows you to change parameters in the deployment descriptor without opening the archive file.

  C. Keep environmental data in the database because it is the most effective way of parametrizing the environment.

  D. Keep archive in exploded format so the customer does not have to open the archive files.

  E. Eliminate all environmental settings from the application. There should not to be any environmental settings in the application.

  Correct Answer: B

  WebLogic Server uses the standard J2EE web.xml deployment descriptor for defining a Web Application. Some applications also require the WebLogic-specific deployment descriptor, weblogic.xml. You use these deployment descriptors to define components and operating parameters for a Web Application. Deployment descriptors are standard text files, formatted using XML notation. You package them in the Web Application.

  Reference: Overview of Web Application Deployment Descriptors

• Question 29:

  A WebLogic team is developing an enterprise application from their desktop WebLogic environment. All development systems are connected to the same eight data sources for testing. As a WebLogic Administrator supporting this team, which two actions should you perform to free the developers from creating and configuring all the data sources on their desktop WebLogic environment?

  A. Provide the team with a WebLogic domain template with the testing data sources configured.

  B. Provide the development team with a preconfigured domain archive file.

  C. Provide the development team with the [datasource] -jdbc.xml file to overwrite their local copy.

  D. Create the data sources on behalf each of the developer.

  E. Provide the development team with WLST scripts to create and configure the testing data sources.

  Correct Answer: E

  WebLogic Administrators typically use the Administration Console or the WebLogic Scripting Tool (WLST) to create and deploy (target) JDBC modules.

  Note:

  *

  (not A) Domain template--defines the full set of resources within a domain, including infrastructure components, applications, services, security options, and general environment and operating system options.

  *

  Extension template--defines the applications and services that you can add to an existing domain, including product component functionality and resources such as JDBC or JMS.

  *

  (not B) Each domain describes its configuration in an XML document that is located in the domain's configuration directory. At run time, each WebLogic Server instance in a given domain creates an in-memory representation of the configuration described in this document.

  The central configuration file for a domain is DOMAIN_NAME/config/config.xml. This file specifies the name of the domain and the configuration of each server instance, cluster, resource, and service in the domain. The file includes references to additional XML files that are stored in subdirectories of theDOMAIN_NAME/config directory. These included files are used to describe major subsystems of WebLogic Server.

  Reference: Configuring WebLogic JDBC Resource

• Question 30:

  In WebLogic 10.3.6 and 12c, transaction logs can optionally write to a JDBC store instead of a file store on the file system. Identify the three benefits as a result of this capability.

  A. simplified disaster recovery architecture and efforts

  B. better performance than writing logs to a file store

  C. common storage of transaction logs with application data

  D. common replication of transaction logs with application data

  E. higher transaction throughput

  Correct Answer: ACD

  Comparing File Stores and JDBC-accessible Stores

  The following are some similarities and differences between file stores and JDBC-accessible stores:

  *

  (A) JDBC stores may make it easier to handle failure recovery since the JDBC interface can access the database from any machine on the same network. With the file store, the disk must be shared or migrated.

  *

  The default persistent store can only be a file store. Therefore, a JDBC store cannot be used as a default persistent store.

  *

  Both have the same transaction semantics and guarantees. As with JDBC store writes, file store writes are guaranteed to be persisted to disk and are not simply left in an intermediate (that is, unsafe) cache.

  *

  Both have the same application interface (no difference in application code).

  *

  (not B, not E) All things being equal, file stores generally offer better throughput than a JDBC store.

  / If a database is running on high-end hardware with very fast disks, and WebLogic Server is running on slower hardware or with slower disks, then you may get better performance from the JDBC store.

  *

  File stores are generally easier to configure and administer, and do not require that WebLogic subsystems depend on any external component.

  *

  File stores generate no network traffic; whereas, JDBC stores generate network traffic if the database is

  on a different machine from WebLogic Server.

  Reference: Configuring Server Environments for Oracle WebLogic Server 12c, Comparing File Stores and JDBC-accessible Stores