Oracle 1Z0-102 Online Practice Questions and Exam Preparation

Oracle 1Z0-102 Online Questions & Answers

• Question 81:

  Indentify two server attributes that you must configure to communicate with the server via HTTPS.

  A. SSL Listen Address
  B. SSL Listen Port
  C. SSL Listen Port Enabled
  D. Production Mode Enabled
  E. Startup Mode
  B. SSL Listen Port
  C. SSL Listen Port Enabled

  ---

  B: WebLogic Server supports SSL on a dedicated listen port which defaults to 7002. To establish an SSL connection, a Web browser connects to WebLogic Server by supplying the SSL listen port and the HTTPs schema in the connection URL, for example, https://myserver:7002.

  C: Note: Enabling SSL under WLS 10.3

  Steps to configure WLS for SSL:

  1) Open the WLS console

  2) Select from the Domain Structure -> (your domain) -> Environment -> Servers

  3) Select the server from the Summary of Servers page you wish to configure for SSL.

  4) Under the Settings for (server name) page, select the Configuration tab, then General tab (the defaults).

  5) If WLS is running in production mode, select the Lock and Edit button.

  6) Select the SSL Listen Port Enabled checkbox, and enter your preferred port in the SSL Listen Port.

  7) Press the Save button.

  8) If WLS is running in production mode, select the Release Configuration button.

  Incorrect answers:

  A: There is no such thing as SSL Listen address. Using a sloppy language it can be used as a synonym to SSL Listen Port. SSL Listen port do exist.

  Reference: Oracle HTTP Server Attribute Descriptions

• Question 82:

  Which three statements are true when an Administration Server is compared to a managed server?

  A. A domain must have at least one of each type of server.
  B. Administration Server keeps a domain log, but a Managed Server does not.
  C. A Managed Server keeps a server log, but an Administration Server does not.
  D. When a Managed Server comes up, it asks its Administration Server for the latest configuration.
  E. An Administration Server manages the domain configuration.
  F. JEE applications are deployed only to a Managed Server.
  D. When a Managed Server comes up, it asks its Administration Server for the latest configuration.
  E. An Administration Server manages the domain configuration.
  F. JEE applications are deployed only to a Managed Server.

  ---

  D: 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.

  E: One instance of WebLogic Server in each domain acts as an Administration Server. The Administration Server provides a central point for managing a WebLogic Server domain.

  F: For a typical production system, BEA recommends that you deploy your applications only on Managed Servers. This practice allows you to dedicate the Administration Server to configuration and monitoring of the domain, while one or more Managed Servers service your applications.

  Incorrect answers:

  A: In a domain with only a single WebLogic Server instance, that server functions both as Administration Server and Managed Server. B, C: Many WebLogic Server operations generate logs of their activity. Each server has its own log as well as a standard HTTP access log. These log files can be configured and used in a variety of ways to monitor the health and activity of your servers and applications.

  Reference: Overview of WebLogic Server System Administration

• Question 83:

  Which can be associated with multiple domains?

  A. Cluster
  B. Server Log
  C. Node Manager
  D. Administration Server
  C. Node Manager

  ---

  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.

  Incorrect answers:

  A: A cluster is part of a particular WebLogic Server domain.

  D: In each domain, one WebLogic Server instance acts as the Administration Server--the server instance which configures, manages, and monitors all other server instances and resources in the domain. Each Administration Server manages one domain only. If a domain contains multiple clusters, each cluster in the domain has the same Administration Server.

  Reference: Using Node Manager to Control Servers Reference: Understanding WebLogic Server Clustering http://docs.oracle.com/cd/E11035_01/wls100/cluster/overview.html

• Question 84:

  You monitor a running JDBC data source with the console and note the following values:

  Current Capacity = 10 Current Capacity High Count = 20

  Identify two plausible s for these metrics.

  A. The pool size has increased.
  B. The pool size has decreased.
  C. The workload was higher than it is now.
  D. The workload was lower than it is now.
  E. The statement cache size is 10.
  F. The statement cache size is 20.
  B. The pool size has decreased.
  C. The workload was higher than it is now.

  ---

  The pool size has decreased from a maximum 20 to 10.

  The workload has been 20. Now it is 10. The workload was higher.

  Note: Current Capacity: The current count of JDBC connections in the connection pool in the data source. Current Capacity High Count: Highest number of database connections available or in use (current capacity) in this instance of the

  data source since the data source was deployed.

  Note:

  Incorrect answers:

  E, F: The statement cache deals with statements. Current capacity and Current Capacity High Count deals with connections. Statement Cache Size shows the total number of statements to cache for each connection in each instance of the

  data source. WebLogic Server can reuse statements in the cache without reloading the statements, which can increase server performance. Each connection in the connection pool has its own cache of statements.

  Reference: Administration Console Online Help, JDBC Data Source: Monitoring: Statistics

• Question 85:

  Indentify three ways to create a domain template.

  A. Administration console
  B. Domain Template Builder
  C. unpack command
  D. pack command
  E. Node Manager
  F. WLST
  G. Configuration Wizard
  B. Domain Template Builder
  D. pack command
  F. WLST

  ---

  B: Go to Start Menu->All programs->weblogic10gR3->Tools->Domain Template Builder

  D: The pack command creates a template archive (.jar) file that contains a snapshot of either an entire domain or a subset of a domain. You can use a template that contains a subset of a domain to create a Managed Server domain directory hierarchy on a remote machine.F: 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.

  Incorrect answer:

  Reference: Creating Domain Templates Using the Domain Template Builder Reference: Creating Domains Using WLST Offline

• Question 86:

  Within your data center, the Administration and Managed Servers utilize a shared, central storage device, which server's access via NFS.

  In this scenario, your application files no longer need to be copied to servers across the network. Which server attribute allows you to override this behavior?

  A. Startup Mode
  B. Staging Mode
  C. Root Directory
  D. Listen Address
  B. Staging Mode

  ---

  The server staging mode specifies the default deployment mode for a server if none is specified at deployment time. For example, the server staging mode is used if you deploy an application or module using weblogic.Deployer and you do

  not specify a staging mode.

  Reference:

  http://docs.oracle.com/cd/E12840_01/wls/docs103/ConsoleHelp/taskhelp/deployment/SetAServe rStagingMode.html

• Question 87:

  Which three tasks are required to use JDBC session persistence for a web application?

  A. Enable automatic migration on each server.
  B. Create the session database table.
  C. Configure SSL on each server.
  D. Edit the weblogic.xml descriptor.
  E. Create a multi data source.
  F. Create a JDBC data source.
  B. Create the session database table.
  D. Edit the weblogic.xml descriptor.
  F. Create a JDBC data source.

  ---

  To specify JDBC-based persistent session storage for a Web application, follow these steps:

  1.

  (B) Create a table named wl_servlet_sessions in the database

  2.

  Assign a connection pool that has read/write permissions to the wl_servlet_sessions database table to your WebLogic cluster.

  3.

  Assign the connection pool's associated data source to the same cluster.

  4.

  (D) Edit the associated weblogic.xml file using an XML editor and set the value of thePersistentStoreType and PersistentStorePool parameters Incorrect answer:

  E: A multi data source is an abstraction around a group of data sources that provides load balancing or failover processing between the data sources associated with the multi data source.

  Reference: Implementing Highly Available and Scalable Solutions Using the WebLogic Cluster, JDBC-Based Persistent Storage http://www.informit.com/articles/article.aspx?p=101737andseqNum=7

• Question 88:

  Which two statements are true about a WebLogic domain?

  A. It is the basic administrative unit of WebLogic Server.
  B. It is an optional administrative construct to organize groups of WebLogic
  C. Administration Servers are defined within a domain, but Managed Servers
  D. You must first have a domain to define a WebLogic Server cluster.
  E. Every domain has one Administration Server and at least one managed server
  A. It is the basic administrative unit of WebLogic Server.
  D. You must first have a domain to define a WebLogic Server cluster.

  ---

  A: A domain is the basic administration unit for WebLogic Server instances.

  D: To define a WebLogic Server cluster there must be a domain:

  Note: Before you start the Managed Servers in a domain, start the Administration Server. When you start a standalone or clustered Managed Server, it contacts the Administration Server for its configuration information. In this way, the Administration Server operates as the central control entity for the configuration of the entire domain.

  Reference: Configuring and Managing WebLogic Server http://docs.oracle.com/cd/E13222_01/wls/docs81/adminguide/overview_domain.html

• Question 89:

  Indentify two requirements for in-memory session replication.

  A. Clusters must contain an even number of members.
  B. Web applications must be configured to use replication.
  C. Web applications must be deployed as an archive file.
  D. Cluster members must be started by using the Node Manager.
  E. Web applications must be accessed via a proxy that supports session cookies
  B. Web applications must be configured to use replication.
  E. Web applications must be accessed via a proxy that supports session cookies

  ---

  B: When in-memory replication is enabled for a web application, WebLogic Server copies session state from one server in the cluster (primary) to one other server in the same cluster (secondary). The replica on the secondary server is kept up-to-date so that it may be used if the primary server fails.

  E: To utilize in-memory replication for HTTP session states, you must access the WebLogic Server cluster using either a collection of Web servers with identically configured WebLogic proxy plug-ins, or load balancing hardware. If you choose to use load balancing hardware instead of a proxy plug-in, it must support a compatible passive or active cookie persistence mechanism, and SSL persistence.

  Note 1: In its default configuration, WebLogic Server uses client-side cookies to keep track of the primary and secondary server that host the client's servlet session state. If client browsers have disabled cookie usage, WebLogic Server can also keep track of primary and secondary servers using URL rewriting. With URL rewriting, both locations of the client session state are embedded into the URLs passed between the client and proxy server. To support this feature, you must ensure that URL rewriting is enabled on the WebLogic Server cluster.

  Note 2: To support automatic failover for servlet and JSP HTTP session states, WebLogic Server replicates the session state in memory. WebLogic 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. The process of copying a session state from one server instance to another is called in-memory replication.

  Reference: eDocs Home > BEA WebLogic Server 8.1 Documentation > Using WebLogic Server Clusters > Failover and Replication in a Cluster, Failover and Replication in a Cluster

• Question 90:

  An EJB application is targeted to a cluster. Remote EJB clients can therefore take advantage of WebLogic Server's load balancing and failover capabilities.

  However, a proxy server exists between the clients and the cluster, which performs IP address translation. Which cluster attribute should you modify to ensure that load balancing and failover work correctly?

  A. Multicast Address
  B. Persistent Store
  C. Cluster Address
  D. Migration Basis
  E. Replication Channel
  C. Cluster Address

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  Note:

  Updating Proxy Service Configurations for an Expanded Cluster

  If your AquaLogic Service Bus configuration includes one or more proxy services that use JMS endpoints with cluster addresses, then you must also perform the following procedure using the AquaLogic Service Bus Console after adding the

  new managed server to the cluster:

  1.

  In the Change Center, click Create to create a session.

  2.

  Using the Project Explorer, locate and select a proxy service that uses JMS endpoints with cluster addresses.

  3.

  At the bottom of the View Details page, click Edit.

  4.

  If there is a cluster address in the endpoint URI, add the new server to the cluster address.

  5.

  On the Edit a Proxy Service - Summary page, click Save.

  6.

  Repeat step 2. through step 5. for each remaining proxy service that uses JMS endpoints with cluster addresses.

  7.

  In the Change Center, click Activate.

  The proxy services are now configured for operation in the extended domain.

  Reference: eDocs Home > BEA AquaLogic Service Bus 2.0 Documentation > Deployment Guide > Configuring a Clustered Deployment