Oracle 1Z0-102 Online Practice Questions and Exam Preparation

Oracle 1Z0-102 Online Questions & Answers

• Question 61:

  Which four statements are true about WLST?

  A. You can create a domain with WLST.
  B. WLST commands are case-insensitive.
  C. You can shut down servers with WLST.
  D. All WLST commands include parentheses.
  E. WLST is based on the Perl scripting language.
  F. You can connect to any server through WLST.
  G. The Administration Server needs to be running to use WLST.
  A. You can create a domain with WLST.
  B. WLST commands are case-insensitive.
  C. You can shut down servers with WLST.
  D. All WLST commands include parentheses.

  ---

  A: WLST enables you to create a new domain or update an existing domain without connecting to a running WebLogic Server (that is, using WLST offline)-- supporting the same functionality as the Configuration Wizard.

  B: WLST command names and arguments are case sensitive.

  C: The WLST shutdown command Gracefully shuts down a running server instance or a cluster. The shutdown command waits for all the in-process work to be completed before shutting down the server or cluster. You shut down a server to which WLST is connected by entering the shutdown command without any arguments.

  D: All WLST commands include parentheses. Example: exit(),startApplication(appName, [options])

  Incorrect answers:

  E: WLST is based on the Java scripting interpreter, Jython.

  F: The WLST connect command only to a WebLogic Server instance.

  G: Without connecting to a running WebLogic Server instance, you can use WLST to create domain templates, create a new domain based on existing templates, or extend an existing, inactive domain. You cannot use WLST offline to view performance data about resources in a domain or modify security data (such as adding or removing users).

  WLST offline provides read and write access to the configuration data that is persisted in the domain's config directory or in a domain template JAR created using Template Builder. Reference: Documentation Home > BEA WebLogic Server 9.2 Documentation > WebLogic Scripting Tool > WLST Command and Variable Reference

• Question 62:

  When describing a WebLogic domain, which three statements are true?

  A. A domain may be set up in either Production Mode Production Mode or Development Mode.
  B. All instances of WebLogic Server must be defined within a domain.
  C. The domain configuration is stored in Oracle database by default.
  D. Any instance of WebLogic Server may update the domain configuration
  E. The security realm for a domain is optional.
  F. A domain maybe created by using the Configuration Wizard.
  A. A domain may be set up in either Production Mode Production Mode or Development Mode.
  B. All instances of WebLogic Server must be defined within a domain.
  F. A domain maybe created by using the Configuration Wizard.

  ---

  A: All servers in a domain run either in development mode or production mode.

  F: If you want to create a new domain, you can use the Configuration Wizard (or WLST or Unpack command). Incorrect answers:

  D: Only an administration server can update the domain configuration.

• Question 63:

  An application requires a JDBC data source, which you create in the domain. You name it but the administrator allot another domain name the same data source DatasourceB. Without modifying either domain, which is the best method to ensure that the application deploys successfully in both?

  A. Create a separate application archive to use with each domain.
  B. Create a separate deployment plan file to use with each domain.
  C. Create and register a custom deployment listener.
  D. Modify the application code to determine the current domain.
  B. Create a separate deployment plan file to use with each domain.

  ---

  A WebLogic Server deployment plan is an optional XML document that you use to configure an application for deployment to a specific WebLogic Server environment, such as a domain. Reference: Deploying Applications To WebLogic Server, Configuring Applications for Production Deployment

• Question 64:

  You have selected Configuration Archive Enabled for the domain. When a configuration change and activated, where is the previous version of the configuration archived?

  A. in the Oracle database
  B. in the config directory
  C. in the pending directory
  D. in the console-ext directory
  E. in the configArchive directory
  E. in the configArchive directory

  ---

  You can configure WebLogic Server to make backup copies of the configuration files. This facilitates recovery in cases where configuration changes need to be reversed or the unlikely case that configuration files become corrupted. When the Administration Server starts up, it saves a JAR file named config-booted.jar that contains the configuration files. When you make changes to the configuration files, the old files are saved in the configArchive directory under the domain directory, in a JAR file with a sequentially-numbered name like config-1.jar. Reference: Understanding Domain Configuration, Configuration File Archiving http:// docs.oracle.com/cd/E12840_01/wls/docs103/domain_config/config_files.html

• Question 65:

  An application fails. The exception indicates that the JDBC data source, jdbc-hr.HRDS, cannot be found. Identify two possible steps that you can perform to verify the data source's availability.

  A. Launch the JDBCDiagnostics utility.
  B. Verify the Targets attribute of the application.
  C. Verify the Dependencies attribute of the data source.
  D. Verify the target server's JNDI tree in the console.
  E. Verify the Target attribute of the data source.
  D. Verify the target server's JNDI tree in the console.
  E. Verify the Target attribute of the data source.

  ---

  D: In WebLogic Server, you configure database connectivity by adding data sources to your WebLogic domain. WebLogic JDBC data sources provide database access and database connection management. Each data source contains a pool of database connections that are created when the data source is created and at server startup. Applications reserve a database connection from the data source by looking up the data source on the JNDI tree or in the local application context and then calling getConnection().

  E: Each data source that you configure contains a pool of database connections that are created when the data source instance is created--when it is deployed or targeted, or at server startup. Applications lookup a data source on the JNDI tree or in the local application context (java:comp/env), depending on how you configure and deploy the object, and then request a database connection. When finished with the connection, the application calls connection.close(), which returns the connection to the connection pool in the data source.

  Incorrect answers:

  A: There is no such Weblogic utility.

  B: This is a JDBC error. There is no JDBC application target. There is JDBC data source target, however.

• Question 66:

  You are responsible for configuration a WebLogic domain to support an order processing application. This application will communicate with multiple JDBC data sources to fulfill each customer order. To maintain data integrity across these databases, work will be performed within a global transaction.

  However, you have learned that one of the data sources in the transaction does not have an XA driver. Which option should you select on this non-XA data source to ensure that orders are still processed as global transactions?

  A. Ignore Heuristics
  B. Planned to Thread
  C. Password Encrypted
  D. Logging Last Resource
  E. Test Connections on Reserve
  D. Logging Last Resource

  ---

  The Logging Last Resource option:

  Enables a non-XA JDBC connection to participate in distributed transactions using the Logging Last Resource (LLR) transaction optimization. Recommended in place of Emulate Two-Phase Commit.

  With this option, the transaction branch in which the connection is used is processed as the last resource in the transaction and is processed as a one-phase commit operation. The result of the operation is written in a log file on the resource

  itself, and the result determines the success or failure of the prepare phase of the transaction. This option offers some performance benefits with greater data safety than Emulate Two-Phase Commit. Note: The transaction protocol for a

  JDBC data source determines how connections from the data source are handled during transaction processing. Transactions within a JDBC data source are either global (XA) and non-global (local).

  Incorrect answers:

  E: Test Connections on Reserve is related to connections, not to transactions:

  When Test Connections on Reserve is enabled, the server instance checks a database connection prior to returning the connection to a client. This helps reduce the risk of passing invalid connections to clients.

  Reference: OTN Home > Oracle WebLogic Server 10.3.1 Documentation > Administration Console Online Help > JDBC Data Source: Configuration: Transaction

• Question 67:

  Which two statements are true about data sources that have been created?

  A. Data sources must be targeted to a server.
  B. Data sources must be bound in the JDNI tree of a server.
  C. Data sources are an Oracle WebLogic Server-specific feature.
  D. Data sources are tied directly to a connection pool.
  E. Data sources are required for a domain.
  B. Data sources must be bound in the JDNI tree of a server.
  D. Data sources are tied directly to a connection pool.

  ---

  In WebLogic Server, you configure database connectivity by adding data sources to your WebLogic domain. WebLogic JDBC data sources provide database access and database connection management. Each data source contains a pool of database connections that are created when the data source is created and at server startup. Applications reserve a database connection from the data source by looking up the data source on the JNDI tree or in the local application context and then calling getConnection(). When finished with the connection, the application should call connection.close() as early as possible, which returns the database connection to the pool for other applications to use.

• Question 68:

  When you use the Embedded LDAP that is supplied by Oracle WebLogic Server, which three statements are true?

  A. The Embedded LDAP can be used to store user, group, security roles and security policies for the WebLogic security providers.
  B. The Embedded LDAP uses the file system to store Weblogic security provider data.
  C. The Embedded LDAP can be accessed by an external LDAP viewer.
  D. The Embedded LDAP cannot be used in a production environment
  E. The Embedded LDAP can store Auditing Data.
  A. The Embedded LDAP can be used to store user, group, security roles and security policies for the WebLogic security providers.
  C. The Embedded LDAP can be accessed by an external LDAP viewer.
  E. The Embedded LDAP can store Auditing Data.

  ---

  A: The embedded LDAP server contains user, group, group membership, security role, security policy, and credential map information.

  C: The credential (usually a password) used to connect to the embedded LDAP server. If this password has not been set, WebLogic Server generates a password at startup, initializes the attribute, and saves the configuration to the config.xml

  file. If you want to connect to the embedded LDAP server using an external LDAP browser and the embedded LDAP administrator account (cn=Admin), change this attribute from the generated value.

  E: You can use either the WebLogic Auditing provider or a custom Auditing provider in a security realm. Although an Auditing provider is configured per security realm, each server writes auditing data to its own log file in the server directory.

  By default, all auditing information recorded by the WebLogic Auditing provider is saved in the following file:

  WL_HOME\yourdomain\yourserver\DefaultAuditRecorder.log.

  By writing a custom Auditing provider, however, you can send the records containing audit information to any one of various output repositories, such as an LDAP server, database, or a simple file.

  Incorrect answers:

  D: The embedded LDAP server is the default security provider database for the WebLogic Authentication, Authorization, Credential Mapping and Role Mapping providers.

  Incorrect answers:

  B: The WebLogic Authentication, Authorization, Credential Mapping, and Role Mapping providers use the embedded LDAP server as their database.

  Note: The WebLogic Security providers store their data in the embedded LDAP server. When you delete a WebLogic Security provider, the security data in the embedded LDAP server is not automatically deleted. The security data remains in the embedded LDAP server in case you want to use the provider again. Use an external LDAP browser to delete the security data from the embedded LDAP server.

• Question 69:

  You run the default startmanageWeblogic (.cmd in Windows) script as shown here: startmanageWeblogic.sh server1 http://192.168.1.102:8001.

  What does this do?

  A. It starts the administration server named server1, which is running at 192.168.1.102.8001.
  B. It starts the managed server named server1, which is running at 192.168.1.102.8001.
  C. It starts the managed server named server1 whose Node Manager is running at 192.168.1.102.8001.
  D. It starts the Managed Server named server1 whose Administration Server is running at 192.168.1.102:8001.
  D. It starts the Managed Server named server1 whose Administration Server is running at 192.168.1.102:8001.

  ---

  A Managed Server is a WebLogic Server instance that runs deployed applications. It refers to the Administration Server for all of its configuration and deployment information. Usually, you use Managed Servers to run applications in a

  production environment.

  See step 4 and 5 below in particular:

  To use the WebLogic Server scripts to start Managed Servers:

  1.

  Refer to Starting Servers: Before You Begin for prerequisite tasks.

  2.

  If you have not already done so, create one or more Managed Servers.

  See Creating WebLogic Domains Using the Configuration Wizard or "Create Managed Servers" in the Administration Console Online Help.

  3.

  Start the domain's Administration Server.

  4.

  In a shell (command prompt) on the computer that hosts the Managed Server, change to the directory that contains the startManagedWebLogicscript:

  DOMAIN_NAME\bin\startManagedWebLogic.cmd (Windows)

  DOMAIN_NAME/bin/startManagedWebLogic.sh (UNIX)

  where DOMAIN_NAME is the directory in which you located the domain. By default, this directory is BEA_HOME\user_projects\domains\DOMAIN_NAME.

  5.

  Enter one of the following commands:

  startManagedWebLogic.cmd managed_server_name

  admin_url (Windows)

  startManagedWebLogic.sh managed_server_name

  admin_url (UNIX)

  where managed_server_name specifies the name of the Managed Server and admin_url specifies the listen address (host name or IP address) and port number of the domain's Administration Server.

  For example, the following command uses startManagedWebLogic.cmd to start a Managed Server named myManagedServer. The listen address for the domain's Administration Server is AdminHost:7001:

  c:\bea\user_projects\domains\mydomain\bin\startManagedWe bLogic.cmd myManagedServer http://AdminHost:7001

  6. For each Managed Server that you want to start, open a separate command shell and follow steps 4 and 5. If you are starting Managed Servers on another machine, log in to that machine (remotely or locally) and then follow steps 4 and 5. Reference: Starting Managed Servers with a Startup Script

• Question 70:

  You are deploying a web application called inventory.war. It has been installed and has the Stat* "Prepared." It is targeted to the Managed Server named managed1. The web application's context route is /inventory and the starting page is

  index.jsp

  However, you want to test the application before allowing end users access to it. In the administration console, you select inventory-war, and then select Start and "Servicing only administration requests.

  In your web browser, you need to enter a host and port followed by /inventory/index.jsp. What host and port would you use?

  A. managed, host and port
  B. Administration Server host and port
  C. Managed1 host and Administration port
  D. Administration Server host and Administration port
  D. Administration Server host and Administration port

  ---

  Servicing only administrative requests: Specifies that WebLogic Server make the application available in Administration Mode only. While in Administration mode, the application can be accessed only by internal clients through a configured Administration port.

  Reference: Oracle Fusion Middleware Oracle WebLogic Server Administration Console Online Help 11g Release 1, A weblogic.Deployer Command-Line Reference