Oracle Oracle Certifications 1Z0-102 Questions & Answers

• Question 21:

  Which two are typically found in the WEB-INF folder of a Java web application?

  A. the web application HTML and JSP files

  B. the classes directory containing the compiled classes

  C. the web.xml deployment descriptor

  D. the weblogicserver.xml deployment descriptor

  Correct Answer: BC

  The WEB-INF directory contains the deployment descriptors for the Web application (web.xml (C) and weblogic.xml) and two subdirectories for storing compiled

  Java classes (B) and library JAR files. These subdirectories are respectively named classes and lib. JSP taglibs are stored in the WEB-INF directory at the top

  level of the staging directory. The Java classes include servlets, helper classes and, if desired, precompiled JSPs.

  Reference:

  Oracle Fusion Middleware Developing Web Applications, Servlets, and JSPs for Oracle WebLogic Server, Creating and Configuring Web Applications

• Question 22:

  Consider a domain with an existing JDBC data source, which connects to an Oracle database. Your administrator requests that the JDBC connections to this database now specify a different username. Which data source attribute would you modify to implement this requirement?

  A. Properties

  B. Credentials

  C. Initial Capacity

  D. Test Table

  E. URL

  Correct Answer: E

  The following signature takes the URL, user name, and password all as part of a URL parameter:

  getConnection(String URL);

  Where the URL is of the form: jdbc:oracle::/@

  Reference: oracle.jdbc, Class OracleDriver

• Question 23:

  Which answer best describes how you can start the Java-based version of the Node Manager?

  A. W1scontrol.sh (.cmd in Windows)

  B. Wisifconfig.sh (.cmd in Windows)

  C. startNodeManager.sh (.cmd in Windows)

  D. startNM.sh (.cmd in Windows)

  Correct Answer: C

  Although running Node Manager as an operating system service is recommended, you can also start Node Manager manually at the command prompt or with a script. Use startNodeManager.cmd on Windows systems and startNodeManager.sh on UNIX systems.

  Reference: Configuring and Managing WebLogic Server, Configuring, Starting, and Stopping Node Manager

• Question 24:

  Which two statements are true about Log Filters?

  A. Log Filters are created at the domain level.

  B. You do not have to lock the configuration to create Log Filters.

  C. You can apply a Log Filter to the server log, but not to standard out.

  D. The administration console assists in the creation of Log Filter expressions

  Correct Answer: AD

  A (not B): For any given WebLogic Server instance, you can override the default filter and create a log filter that causes a different set of messages to be written to

  the domain log file.

  Note:

  To create and configure a log filter:

  1.

  If you have not already done so, in the Change Center of the Administration Console, click Lock and Edit (not B) (see Use the Change Center).

  2.

  In the left pane of the Console, select the name of the active domain in the Domain Structure panel.

  3.

  On the Configuration: Log Filters page, click New.

  4.

  On the Create a New Log Filter page, enter a value to identify the filter in the Name field.

  5.

  Click Finish.

  The new log filter appears in the Log Filters table.

  6.

  To configure a filter expression, in the Log Filters table, click the log filter name.

  7.

  On the Configuration page, in the Filter Expression text box, enter criteria for qualifying messages.

  A filter expression defines simple filtering rules to limit the volume of log messages written to a particular log destination.

  See D) below.

  8.

  Click Save.

  The filter and filter expression are listed in the Log Filters table.

  D: Log Filter Configuration

  Use this page to define a custom log filter to restrict the set of messages that one or more servers send to a message destination, such as the domain log,

  standard out, server log file, or memory buffer of recent log events.

  You can click Edit to type or paste in an expression directly, using WLDF Query Language syntax (see Related Topics, below); or you can click Add Expression to

  construct an expression by choosing items from lists.

  Once you create a filter, you cannot change its name. Instead, you must create a new filter under a different name.

  Reference: Administration Console Online Help, Log Filter Configuration Reference: Administration Console Online Help, Create log filters

• Question 25:

  A domain created based on the Basic WebLogic Server Domain product has start scripts called startWebLogic.sh and startManagedWebLogic.sh (.cmd in Windows). Which three statements are true?

  A. startWebLogic.sh starts Node Manager.

  B. startWebLogic.sh has a required parameter.

  C. startManagedWebLogic.sh has a required parameter.

  D. startWebLogic.sh starts the Administration Server of the domain.

  E. startManagedWebLogic.sh can start any managed server in the domain.

  F. Both scripts can start any WebLogic Server, but each has different default parameter values.

  Correct Answer: CDE

  C: If you created Managed Server while creating domain then you can start Managed Server using startManagedWebLogic command

  $BEA_HOME/user_projects/domains//bin

  startManagedWebLogic.cmd (for Windows) startManagedWebLogic.sh (for Unix)

  Assume that we a created Managed Server MS1 with Admin Port as 7003. startManagedWebLogic.cmd ms1 http://localhost:7003 (Windows)

  D: Starting Administration Server (startWebLogic.cmd or .sh)

  E: Starting Managed Server (startManagedWebLogic.sh or .cmd)

• Question 26:

  You wish to restrict access to a JMS queue so that only specific accounts may receive messages from the queue. Identify two steps that, when performed together, implement this security requirement.

  A. Create a policy for queue's URL pattern.

  B. Add a policy to the queue and associate it with a role.

  C. Configure an identify assertion provider.

  D. Acquire the domain configuration lock.

  E. Create a global role and assign users to it.

  Correct Answer: BE

  B:

  Security policy for a JMS Queue (Resource Level).

  When you define a security policy for an individual destination on a JMS server, you can protect all operations of the destination.

  a.

  Login into the Admin server console > Navigate to the Queue that needs to be secured.

  b.

  Click on the security tab > Policies sub tab.

  You can see a small drop down list, which lists the set of the operations that can be protected.

  c.

  Click Add Conditions to add the policy conditions.

  d.

  From the predicate list, specify the policy conditions.

  e.

  Specify the role (the global created in E below) which needs to have the access permissions for the JMS Queue. Click Add > Finish.

  E: Create a Global Role and assign the appropriate user accounts to it.

  Note: There are two ways of securing the JMS resources.

  1.

  At the JMSModule level (Group level), where a single security policy is specified for a set of JMS resources.

  2.

  At the individual JMS resource level, which provides much more grained controlled over the operations that you want to secure.

  Reference: SECURING WEBLOGIC JMS RESOURCES

• Question 27:

  Identify four features of the default administration console.

  A. XML Editor

  B. WLST Editor

  C. Breadcrumbs

  D. Change Center

  E. Template Builder

  F. Domain Structure

  G. Configuration Wizard

  H. WLST Script Recorder

  Correct Answer: CDFH

  The Administration Console user interface includes the following panels.

  *

  Breadcrumb Navigation

  A series of links that show the path you have taken through the Administration Console's pages.

  *

  Change Center

  This is the starting point for using the Administration Console to make changes in WebLogic Server.

  *

  Domain Structure

  This panel is a tree you can use to navigate to pages in the Administration Console.

  *

  How do I...

  This panel includes links to online help tasks that are relevant to the current Console page.

  *

  Tool Bar

  The tool bar at the top of the Console.

  *

  System Status

  The System Status panel reports on the number of information, error, and warning messages that have been logged.

  H: To help automate the task of configuring a domain, you can record your configuration actions in the Administration Console as a series of WebLogic Scripting

  Tool (WLST) commands and then use WLST to replay the commands.

  For details see: Administration Console Online Help, Record WLST Scripts

  Incorrect answers:

  A: To edit XML files, use the BEA XML Editor, an entirely Java-based XML stand-alone editor.

  B: On Windows, a shortcut on the Start menu sets the environment variables and invokes WLST (Tools-->WebLogic Scripting Tool).

  E: he Template Builder is a standalone Java application that prompts you to create custom configuration and extension templates that can be used later for

  creating and updating domains via the Configuration Wizard. Using an existing domain or template, the Template Builder guides you through the process of

  creating custom configuration and extension templates. You can then package these templates or extension templates with your software so your customers can

  use them to customize their WebLogic Platform environments. The Template Builder is especially useful for ensuring that the required environment for WebLogicbased products can be installed and configured easily by your customers at their sites.

  G: * To start and run the Configuration Wizard on a Windows computer, select the Configuration Wizard option from the BEA program group in the Windows Start

  Menu.

  * To start and run the Configuration Wizard in a GUI environment on a UNIX computer (or from a Windows command prompt):

  Log in to a Windows or UNIX system on which the WebLogic Server software is installed.

  Open a command-line shell.

  Go to the following directory: WL_HOME/common/bin

  where WL_HOME is the directory in which you installed WebLogic Server. For example:

  cd ~/bea/weblogic810/common/bin

  Invoke the config.cmd or config.sh script.

  If you try to start the Configuration Wizard on a system that cannot support the graphical display, the wizard automatically starts in console mode.

  Reference: Overview of the Administration Console http://docs.oracle.com/cd/E13222_01/wls/docs90/intro/console.html#1122030

• Question 28:

  View the Exhibit.

  

  You previously deployed an application but later decide to change various configuration parameters, such as timeouts. You access the application's Configuration

  tab in the console and make your configurations, as shown in the Exhibit.

  In which file does WebLogic record these modifications?

  A. config.xml

  B. weblogic.xml

  C. Application.xml

  D. Plan.xml

  Correct Answer: D

  The following attributes are displayed in the exhibit:

  Session Invalidation Interval (in seconds)

  Session Timeout (in seconds)

  debug-enabled

  Maximum in-memory Sessions

  These attributes are stored in the weblogic.xml file as the following elements:

  invalidation-interval-sec

  timeout-secs

  debug-enabled

  max-in-memory-sessions

  Incorrect answers:

  A: config.xml does not contain session related information.

  The config.xml file consists of a series of XML elements. The Domain element is the top-level element, and all elements in the Domain are children of the Domain

  element. The Domain element includes child elements, such as the Server, Cluster, and Application elements. These child elements may have children

  themselves.

  For example, the Server element includes the child elements WebServer, SSL and Log. The Application element includes the child elements EJBComponent and WebAppComponent. Each element has one or more configurable attributes. An attribute has a corresponding attribute in the configuration API. For example, the Server element has a ListenPort attribute, and likewise, the weblogic.management.configuration.ServerMBean class has a ListenPort attribute.

  Reference: weblogic.xml Deployment Descriptor Elements

• Question 29:

  While creating a new domain in the Configuration Wizard, there are two types of machines that may be configured. Identify them.

  A. Machine and Windows machine

  B. administrator machine and managed machine

  C. machine and Unix machine

  D. stand-alone machine and cluster machine

  E. RDBMS machine and LDAP machine

  Correct Answer: B

  Administrator machine:

  The Choose the Administration Server window prompts you to designate a server as the Administration Server. This window is displayed automatically only if the

  selected template includes multiple servers that are not assigned to clusters.

  To choose the Administration Server:

  1.

  From the list of Available Servers, select the server that you want to designate as the Administration Server. The Administration Server cannot be assigned to a cluster.

  2.

  Select Next to proceed to the next configuration window.

  The Server Details area displays detailed information about the selected server. By default, the currently assigned Administration Server is selected.

  The Configure the Administration Server and Configure Managed Server(s) windows are updated to reflect your changes.

  Managed machine:

  The minimum requirement for your domain is a single Administration Server on a single machine. In addition, however, you have the option of configuring other

  resources to be managed by the Administration Server and distributing them across multiple machines. Specifically, you can:

  *

  Add, change, or delete Managed Servers

  *

  Add, change, or delete clusters

  *

  Group Managed Servers into clusters, or change current groupings

  *

  Assign servers to machines, or change current assignments

  Note: The Managed Servers, Clusters, and Machines Options window prompts you to specify whether you want to distribute your WebLogic configuration across

  Managed Servers, clusters, and physical machines

  Note 2:

  The Configure Managed Servers window prompts you to provide the configuration information for one or more Managed Servers. Production environments

  typically deploy one or more Managed Servers, in addition to the Administration Server, to host enterprise applications.

  Reference: Creating WebLogic Configurations Using the Configuration Wizard, Configuring Managed Servers, Clusters, and Machines

• Question 30:

  Indentify three tools that you can use to create a deployment plan.

  A. administration console

  B. weblogic.PlanGenerator

  C. the /autodeploy folder that is locked in the domain directory

  D. developer tools such as JDeveloper or Eclipse

  E. the /plan subfolder that resides outside the application archive

  Correct Answer: ABD

  A: To create a deployment plan for a deployed application that does not already have a deployment plan, make a configuration change to the deployed application. When you make a persisted configuration change to a deployed application that does not have an existing deployment plan, the Administration Console automatically creates a deployment plan for you and prompts you for the location in which to save it.

  B: The weblogic.PlanGenerator is a Java-based deployment configuration tool. It is primarily intended for developers who want to export portions of a WebLogic Server deployment configuration into an XML deployment plan. weblogic.PlanGenerator also enables you to generate a basic WebLogic Server configuration for applications that have only J2EE deployment descriptors.

  D: Deployment plans can be created or edited through the deployment plan editor functionality available through the Web-based Oracle Enterprise Manager 10g Application Server Control Console interface and the J2EE and Studio Editions of the Oracle JDeveloper 10g integrated development environment.

  Reference: Administration Console Online Help, Create a deployment plan Reference: weblogic.PlanGenerator Command Line Reference