Oracle Oracle Certifications 1Z0-102 Questions & Answers

• Question 91:

  Which three statements are true about WebLogic users and groups?

  A. A user is associated with a single security provider.

  B. A user can be a member of several groups.

  C. A group can contain other groups.

  D. A group consists of a name and a password.

  E. A group is associated with multiple security providers.

  F. Both users and groups are assigned a keystore.

  Correct Answer: ABC

  B: For efficient security management, BEA recommends adding users to groups. A group is a collection of users who usually have something in common, such as

  working in the same department in a company.

  C: Example of group nesting:

  Every user is a member of the everyone group.

  The users group is nested within the everyone group.

  Note: Security Providers - are modules that provide security service to application to protect Weblogic resource.

  Types of security providers in WebLogic Server are

  Authentication Provider, Authorization Provider, Auditing Providers, Credential Mapping Provider, Identity Asser- tion Provider, Principal Validation Provider,

  Adjudication Providers, Role Mapping Providers, Certificate Lookup and Validation Providers, Keystore Providers and Realm Adapter providers

  Incorrect answers:

  D: There is no password for a group.

  F: A keystore is a mechanism designed to store password-protected store private keys and trusted CA certificates. In the WebLogic Server security architecture, the WebLogic Keystore provider is used to access keystores. You cannot use a custom Keystore provider with WebLogic Server.

  References: Securing WebLogic Resources, Users, Groups, And Security Roles

• Question 92:

  In WLST, you enter the shutdown () command with no arguments. Which statement is true in this case?

  A. The server you are connected to will shut down.

  B. The command does a "Force" shutdown.

  C. The command blocks user interaction.

  D. The command has timeout of 30,000 milliseconds.

  Correct Answer: A

  The WLST life cycle shutdown command gracefully shuts down a running server instance or cluster.

  Reference: WebLogic Scripting Tool ,Life Cycle Commands

• Question 93:

  Identify two true statements about an Oracle WebLogic Server JMS Connection Factory.

  A. A default JMS Connection Factory exists and is named weblogic.jms.connections

  B. A Connection Factory can be targeted to only one WebLogic Server.

  C. A JMS Connection Factory's Default Priority and Default Time-to-Live attribute cannot be modified after the Connection Factory is created.

  D. A JMS Connection factory can be created as a system module resource within the administration console.

  Correct Answer: BD

  Incorrect answers:

  A: WebLogic JMS defines two default connection factories, which you can look up using the following JNDI names:

  weblogic.jms.ConnectionFactory

  weblogic.jms.XAConnectionFactory

  C: Both Default Priority and Default Time-to-live can be changed:

  Default Priority: This attribute is dynamic. It can be changed at any time. However, changing the value does not affect existing connections. It only affects new

  connections made with this connection factory.

  Default Time-to-Live:

  This attribute is dynamic. It can be changed at any time. However, changing the value does not affect existing connections. It only affects new connections made

  with this connection factory.

  Reference: Programming WebLogic JMS, Understanding WebLogic JMS

• Question 94:

  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

  Correct Answer: AD

  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 95:

  Which two statements are true about multicast communication within a cluster?

  A. Multicast can be used for cluster heartbeat messages.

  B. Multicast is used to replicate session state between servers.

  C. Multiple clusters can share the same multicast address and port.

  D. You may disable multicast on individual cluster members.

  E. Multicast traffic is often limited to a single subnet.

  Correct Answer: AE

  A: WebLogic Server instances in a cluster communicate with one another using two basic network technologies:

  *

  IP sockets, which are the conduits for peer-to-peer communication between clustered server instances.

  *

  IP unicast or multicast, which server instances use to broadcast availability of services and heartbeats that indicate continued availability.

  E: In many deployments, clustered server instances reside within a single subnet, ensuring multicast messages are reliably transmitted. However, you may want to distribute a WebLogic Server cluster across multiple subnets in a Wide Area Network (WAN) to increase redundancy, or to distribute clustered server instances over a larger geographical area.

  Reference: Using WebLogic Server Clusters, Communications In a Cluster http://docs.oracle.com/cd/E11035_01/wls100/cluster/features.html

• Question 96:

  Which statement is true about the java Node Manager?

  A. It runs on Windows not on Linux

  B. In its secure form, it uses one-way SSL.

  C. It does not use the nodemanager.domains file, whereas the script-based Node Manager.

  D. Unlike the script based Node Manager, it should not be run as an operating system service

  Correct Answer: B

  Node Manager security relies on a one-way SSL connection between the client and server.

  Reference: Oracle Fusion Middleware Oracle WebLogic Server Administration Console Online Help 11g Release 1, Configuring Java-based Node Manager Security http://docs.oracle.com/cd/E21764_01/web.1111/e13740/java_nodemgr.htm#i1068397

• Question 97:

  Identify two supported methods of deploying a JMS module to a domain.

  A. Create a module by using the administration console.

  B. Load a module into the WebLogic database.

  C. Include a module file within a web application archive.

  D. Include a module file within an enterprise application archive.

  E. Define a module within an existing JDBC module.

  Correct Answer: AD

  A: Main Steps for Creating Packaged JMS Application Modules

  Follow these steps to configure a packaged JMS module:

  If necessary, create a JMS server to target the JMS module to, as explained in "Configure JMS Servers" in the Administration Console Online Help.

  Create a JMS system module and configure the necessary resources, such as queues or topics, as described in "Configure JMS system modules and add JMS

  resources" in the Administration Console Online Help.

  The system module is saved in config\jms subdirectory of the domain directory, with a "- jms.xml" suffix.

  Copy the system module to a new location, and then:

  Give the module a unique name within the domain namespace.

  Delete the JNDI-Name attribute to make the module application-scoped to only the application. Add references to the JMS resources in the module to all

  applicable J2EE application component's descriptor files, as described in Referencing a Packaged JMS Application Module In Deployment Descriptor Files.

  Package all application modules in an EAR, as described in Packaging an Enterprise Application With a JMS Application Module.

  Deploy the EAR, as described in Deploying a Packaged JMS Application Module.

  D: JMS application modules can be packaged as part of an Enterprise Application Archive (EAR), as a packaged module. Packaged modules are bundled with an

  EAR or exploded EAR directory, and are referenced in the weblogic-application.xml descriptor. The packaged JMS module is deployed along with the Enterprise

  Application, and the resources defined in this module can optionally be made available only to the enclosing application (i.e., as an application-scoped resource).

  Such modules are particularly useful when packaged with EJBs (especially MDBs) or Web Applications that use JMS resources. Using packaged modules

  ensures that an application always has required resources and simplifies the process of moving the application into new environments.

  Reference: Packaging JMS Application Modules In an Enterprise Application

• Question 98:

  Which can be associated with multiple domains?

  A. Cluster

  B. Server Log

  C. Node Manager

  D. Administration Server

  Correct Answer: C

  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 99:

  Which three attributes are part of the configuration of an existing Managed Server and can be modified through the" administration console?

  A. name of the server

  B. the cluster it is in

  C. the machine it runs on

  D. its replication group

  E. whether it is in Development Mode or Production Mode

  F. that it should become the Administration Server for the domain

  Correct Answer: BCD

  B: Attribute label: Cluster The cluster to which this server belongs. If set, the server will listen for cluster multicast events. This is a configurable attribute.

  C: Attribute label: Machine

  The WebLogic Server host computer (machine) on which this server is meant to run.

  This is a configurable attribute.

  D: Server --> Configuration --> Cluster

  A WebLogic Server cluster is a group of servers that work together to provide a more scalable, more reliable application platform than a single server.

  Use this page to specify a server's primary and secondary replication group, cluster weight, and the interface address used to handle multicast traffic.

  Attribute label: Replication Group

  Description: Defines preferred clustered instances considered for hosting replicas of the primary HTTP session states created on the server.

  Incorrect answers:

  A: Attribute Label: Name

  After you have created a server, you cannot change its name. Instead, clone the server and provide a new name for the clone.

  Note:

  An alphanumeric name for this server instance. This field will not accept spaces. 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, JDBC connection pool, virtual host, and any other resource type must be named uniquely and must not use the same name as the domain.

  F: There is no attribute within a server's configuration that designates it as an Administration Server or Managed Server. Instead, the first server instance that you

  start in a domain always functions as the Administration Server.

  Reference: BEA WebLogic Server 8.1 Documentation, Server --> Configuration --> General

• Question 100:

  Identify three properties required by the domain Configuration Wizard when creating a new domain.

  A. machine name

  B. Managed Server name

  C. domain startup mode

  D. domain name

  E. administrator username and password

  Correct Answer: CDE

  C: Choose the Startup Mode Specify the startup mode for your domain. Either Development or Production

  D: The Create WebLogic Domain window prompts you to specify the name and pathname for the domain, and initiate its creation.

  E: The Configure Administrator Username and Password window prompts you to specify a username and password to be used for starting the Administration Server.

  Reference: Creating WebLogic Domains Using The Configuration Wizard http://docs.oracle.com/cd/E13179_01/common/docs92/confgwiz/newdom.html