Oracle 1Z0-102 Online Practice Questions and Exam Preparation

Oracle 1Z0-102 Online Questions & Answers

• Question 91:

  Which three statements are true about the Change Center in administration console?

  A. The Change Center has a link to view the changes made so far.
  B. The Change Center is available only in a Production Mode domain.
  C. The Change Center has a link to view any servers that need to be restarted.
  D. After activating the changes to a server's configuration, you must always restart that server.
  E. In a Development Mode domain, the configuration lock can be acquired automatically.
  F. Changes must always be activated before they can be undone.
  A. The Change Center has a link to view the changes made so far.
  C. The Change Center has a link to view any servers that need to be restarted.
  E. In a Development Mode domain, the configuration lock can be acquired automatically.

  ---

  A: You can view any changes that you have saved, but not yet activated, by clicking the View Changes and Restarts link in the Change Center.

  C: The View Changes and Restarts link presents two tabs, Change List and Restart Checklist:

  *

  The Change List tab presents all changes that have been saved, but not yet activated.

  *

  The Restart Checklist lists all servers for which non-dynamic changes have been activated, but which require restarts before the changes become effective.

  Incorrect:

  D: is wrong because dynamic changes usually don't require a restart if that is all that was changed. If it were mix of dynamic and non-dynamic changes it would require a restart.

  F: is wrong because in production mode the change center has the "undo all changes" button so you don't have to activate the changes before you undo them.

  Reference: Using the Change Center http://docs.oracle.com/cd/E13222_01/wls/docs103/intro/console.html#wp1122447

• Question 92:

  When creating a new Managed Server using the administration console, which two points must be considered?

  A. The Server Name must be unique within the domain.
  B. After you assign a Listen Port value for the server, you cannot change it
  C. The Listen Port value must be unique for ever server.
  D. The Server Name cannot be changed after you have created the server.
  A. The Server Name must be unique within the domain.
  D. The Server Name cannot be changed after you have created the server.

  ---

  A: Each server instance in your WebLogic environment must have a unique name, regardless of the domain or cluster in which it resides, or whether it is an Administration Server or a Managed Server. Within a domain, each server, machine, cluster, virtual host, and any other resource type must be named uniquely and must not use the same name as the domain.

  D: The server name cannot be changed.

  Incorrect answers:

  B: Listen ports can be changed.

  Change Weblogic Listen Port:

  We need to use WLST (weblogic scripting tool) utility if we need to change from back- end.

  Example:

  wls:/offline/wl_server/Server/examplesServer> set(`ListenPort',10890); wls:/offline/wl_server/Server/examplesServer> updateDomain(); wls:/offline/wl_server/ Server/examplesServer> exit();

  C: port is 7001. It does not need to be unique for each server. They all use the same Listen port by default. In Weblogic server default Listen

• Question 93:

  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
  E. URL

  ---

  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 94:

  Identify three attributes of a WebLogic cluster.

  A. Listen Address
  B. Cluster Address
  C. Cluster Factory
  D. Messaging Mode
  E. Servers
  F. Targets
  B. Cluster Address
  D. Messaging Mode
  E. Servers

  ---

  WebLogic Cluster Attributes includes:

  B: * ClusterAddress Defines the address to be used by clients to connect to this cluster. This address may be either a DNS host name that maps to multiple IP addresses or a comma separated list of single address host names or IP addresses. If network channels are configured, it is possible to set the cluster address on a per channel basis.

  D: The Message Mode of a cluster can be either Unicast or multicast.

  E: Managed Servers are included in a WebLogic cluster.

  Note: The config.xml file is an XML document that describes the configuration of a WebLogic Server domain. config.xml consists of a series of XML elements. The Domain element is the top- level element, and all elements in the Domain descend from the Domain element. The Domain element includes child elements, such as the Server, Cluster, and Application elements. These child elements may have children of their own. 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 defined in config.dtd has a corresponding attribute in the configuration API. For example, the Server element has a ListenPort attribute, and likewise, the weblogic.management.configuration.ServerMBean has a ListenPort attribute. Configurable attributes are readable and writable, that is, ServerMBean has a getListenPort and a setListenPort method.

  Reference: WebLogic Server Configuration Reference, Cluster attributes http://docs.oracle.com/cd/E13222_01/wls/docs81/config_xml/Cluster.html#447012

• Question 95:

  An application is deployed to your domain and its manifest indicates version 1.1. You then perform an application update by using a manifest that indicates version 1.2. Indentify two outcomes of this scenario.

  A. The existing 1.1 clients are redirected to the 1.2 application
  B. The existing 1.1 clients are shown a warning message.
  C. The existing 1.1 clients continue to use the 1.1 application.
  D. New clients are asked which version they wish to use.
  E. New clients use only use 1.2 application
  C. The existing 1.1 clients continue to use the 1.1 application.
  E. New clients use only use 1.2 application

  ---

  As long as the HTTP Session is valid, the old user will continue to use "Version 1." All new users will be using "Version 2. Reference: Oracle WebLogic Server 12c: Configuring and Using Production Redeployment.

• Question 96:

  You deployed a simple web application WAR by using the administration console. Its state is currently "Active."

  In the administration console, under Configuration of the application, you change some deployment descriptor values.

  What happens when you save such changes?

  A. The changes are in memory and temporary
  B. This is not possible because changes cannot be made to an "Active" application.
  C. You are prompted to select a location for a new deployment plan where the changes will be stored.
  D. The archive is opened and new versions of the deployment descriptors are placed within it.
  C. You are prompted to select a location for a new deployment plan where the changes will be stored.

  ---

  Note: You can use the Administration Console to configure selected deployment descriptor element values for an EJB that is deployed as an exploded application. To configure editable deployment descriptor values for an EJB that is deployed as an exploded application:

  1.

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

  2.

  In the left pane of the Administration Console, select Deployments.

  3.

  In the right pane, click the desired EJB module.

  4.

  Select the Configuration > General tab.

  Selected deployment descriptor elements for the EJB are listed.

  5.

  Enter new values for the elements you want change, and click Save.

  6.

  To activate these changes, in the Change Center of the Administration Console, click Activate Changes. Not all changes take effect immediately--some require a restart Reference: Oracle Fusion Middleware Oracle WebLogic Server Administration Console Online Help 11g Release 1, Configure deployment descriptor values

• Question 97:

  You received a signed certificate from a Certificate Authority and you wish to use the keytool command-line utility to store it in your keystore. Which command of keytool would you us

  A. genkey pair
  B. import cert
  C. gensockey
  D. importkeystore
  E. storepasswd
  B. import cert

  ---

  B: keytool import

  Reads the certificate or certificate chain (where the latter is supplied in a PKCS#7 formatted reply) from the file cert_file, and stores it in the keystore entry identified by alias. If no file is given, the certificate or PKCS#7 reply is read from stdin.

  keytool can import X.509 v1, v2, and v3 certificates, and PKCS#7 formatted certificate chains consisting of certificates of that type.

  Incorrect answers:

  A: keytool --genkey generates a key pair (a public key and associated private key). Wraps the public key into an X.509 v1 self-signed certificate, which is stored as a single-element certificate chain. This certificate chain and the private key are stored in a new keystore entry identified by alias.

  Description: Loads a trusted CA certificate into a keystore. If the keystore does not exist, it is created.

  Reference: Configuring Identity and Trust, Commonly Used keytool Commands http://docs.oracle.com/cd/E11035_01/wls100/secmanage/identity_trust.html

• Question 98:

  A web application called sales was deployed and is currently "Active". It is targeted to managed1 and managed2. The developers have given you an upload WAR file and you have replaced the original WAR file with it. From the directory where the WAR file resides, you run the following weblogic.Deployer command:

  java weblogic.Deployer adminurl t3://192.168.1.101:7001-username weblogic password welcom1 name sales redeploy Which statement best describes what happens?

  A. The command fails because no target was specified.
  B. The application is deployed to the Administration Server because no target was specified.
  C. The application is deployed to whichever server is running at 192.168.1.101:7001.
  D. The application is deployed to managed1 and managed2 because that is where it is currently targeted.
  D. The application is deployed to managed1 and managed2 because that is where it is currently targeted.

  ---

  -targetstarget_list (for the redeploy command) is not specified here. It is used to specify the targets on which to distribute, deploy, or redeploy the application or module. If you do not specify a target list with the -deploy command, the target defaults to:

  *

  the Administration Server instance for new deployments (not the case here)

  *

  the application's current targets for deployed applications (the case in this scenario)

  Note:

  Syntax:

  java [SSL Arguments] weblogic.Deployer [Connection Arguments] [User Credentials Arguments] COMMAND-NAME command-options [Common Arguments]

  Connection Arguments

  The -adminurl value must specify the listen address and listen port of the Administration Server. . The Administrator username. If you supply the -username option but you do -usernameusername not supply a corresponding -password option,

  weblogic.Deployer prompts you for the password.

  -redeploy.redeploys a running application or part of a running application.

  -name deployment_name. Specifies the deployment name of a deployed application or module. The option can be omitted, in which case the name is taken from the -source fileargument.

  -name

  Note: weblogic.Deployer is a Java-based deployment tool that provides a command-line interface to the WebLogic Server deployment API. weblogic.Deployer is intended for administrators and developers who want to perform interactive,

  command-line based deployment operations.

  Reference: Deploying Applications to WebLogic Server, weblogic.Deployer Command-Line Reference

• Question 99:

  Managed Server Independence enabled is not selected in the configuration of myserver1. Which statement is true?

  A. Only the Node Manager can start myserver1
  B. Only a local start script can start myserver1
  C. Myserver1 cannot be part of a cluster.
  D. The Administration Server must be available before starting myserver1
  D. The Administration Server must be available before starting myserver1

  ---

  To prevent the Administration Server from becoming a single point of failure, Managed Servers can always function without the presence a running Administration Server. When a Managed Server starts, it contacts the Administration Server

  to retrieve its configuration information. If a Managed Server is unable to connect to the specified Administration Server during startup, it can retrieve its configuration directly by reading a copy of the config.xml file and other files located on the

  Managed Server's own file system.

  A Managed Server that starts in this way is running in Managed Server Independence mode. In this mode, a server uses cached application files to deploy the applications that are targeted to the server.

  Reference: Overview of WebLogic Server System Administration, Managed Server Indepenence http://docs.oracle.com/cd/E13222_01/wls/docs81/adminguide/ overview.html

• Question 100:

  You are logged in to the administration console for a domain that is running in Development Mode. The domain configuration, you select Production Mode, Save, and then Activate Changes. Which two statements are true?

  A. All running servers must be restarted.
  B. Only the Administration Server must be restarted.
  C. Auto-deployment will no longer be available for this domain.
  D. This change may be made only through the Administration Server's secure port.
  E. If you decide to go back to Development Mode, uncheck Production Mode in the administrate console.
  A. All running servers must be restarted.
  C. Auto-deployment will no longer be available for this domain.

  ---

  C: auto deployment is not allowed in production mode only development mode.

  Note 1:

  All servers in a domain run either in development mode or production mode. To configure all servers in a domain to run in production mode:

  1.

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

  In the left pane of the Console, under Domain Structure, select the domain name.

  2.

  Select Configuration > General and select the Production Mode check box.

  3.

  Click Save, and then, to activate these changes, in the Change Center, click Activate Changes.

  4.

  Shut down any servers that are currently running.

  5.

  Invoke the domain's startWebLogic script.

  The Administration Server starts in the new mode.

  6.

  If the domain contains Managed Servers, start the Managed Servers.

  Result

  As each Managed Server starts, it refers to the mode of the Administration Server to determine its runtime mode.

  Note 2: Once you have changed to production mode, whether by using a start command argument, the Console, or WLST, you cannot change back to development mode without restarting the server.

  By default auto deployment is turned off in Production Mode (however it can be later turned on). Incorrect:

  E: if you want to go back to development mode you must change the config.xml file and restart the admin server. The window shown below shows from developemnt to production NOT production to development is allowed. This is in development mode and you can change to production mode but in production mode this attribute states the word true.

  

  Reference: Administration Console Online Help, Change to production mode