[Free] 2018(Jan) EnsurePass Examcollection Oracle 1z0-599 Dumps with VCE and PDF 51-60

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Oracle WebLogic Server 12c Essentials

Question No: 51

A customer has a critical, performance-sensitive web application that connects to a multimode Oracle RAC database. Which feature of WebLogic can provide signification benefit?

  1. The Web Session Affinity feature of Active GridLink for RAC.

  2. WebLogic Clustering

  3. The Transaction Affinity feature of Active GridLink for RAC

  4. Coherence*Web Session Replication

Answer: C

Explanation: Active GridLink for Oracle RAC

In Oracle WebLogic Server 10.3.4, a single data source implementation has been introduced to support an Oracle RAC cluster. It responds to FAN events to provide Fast Connection Failover (FCF), Runtime Connection Load-Balancing (RCLB), and RAC instance graceful shutdown. XA affinity is supported at the global transaction Id level. The new feature is called WebLogic Active GridLink for RAC; which is implemented as the GridLink data source within WebLogic Server.


  • The WebLogic Server JDBC subsystem has supported Oracle RAC since WLS version 9.0, originally developed for Oracle9i RAC. This support is based on a particular type of data source configuration, called a multi data source. A multi data source is a data source abstraction over one or more individual data sources. It serves JDBC connections from each of the member data sources according to a specified policy. A RAC multi data source configuration requires that each member data source obtain connections to a particular RAC instance.

    Reference: How-To: Use Oracle WebLogic Server with a JDBC GridLink Data Source

    Question No: 52

    What type of Java EE application can be upgraded to WebLogic 12c using the Smart Upgrade tool?

    1. GlassFish

    2. iAS

    3. WebLogic Server 11g

    4. JBoss

    Answer: B Explanation: Note:

  • iAS: Oracle Application Server

  • Oracle WebLogic Server SmartUpgrade is one several Oracle software tools that can help you upgrade your entire Oracle Application Server or Oracle WebLogic Server environment to Oracle Fusion Middleware 11g.

    Question No: 53

    Which WebLogic optimization allows one non-XA resource to participate in a distributed transaction?

    1. enabling Pinned to Thread

    2. enabling Logging Last Resource

    3. increasing the Statement cache size

    4. setting the statement cache type to LRU

    5. setting the initial and maximum capacity to the same number

    Answer: B

    Explanation: http://my-java-planet.blogspot.com/2014/04/which-weblogic-optimization- allows-one.html

    Question No: 54

    A customer needs to analyze an application that was developed for Oracle Application Server 10gR2 or 10gR3 (OC4J) in order to prepare to upgrade the infrastructure to WebLogic 12c. The customer wants understand the changes required to be made to the application and how to configure WebLogic in to support the newly upgraded application.

    Which three actions would you recommend for upgrading the customer#39;s application and

    server configuration?

    1. Use Oracle Upgrade Manager to create a new WebLogic domain template from an OAS/OC4J installation and redeploy the application.

    2. Use SmartUpgrade to analyze the OAS/OC4J server configuration and create WebLogic configuration files.

    3. Use SmartUpgrade to analyze the application archive (EAR/WAR/JAR) Source Directory or IDeveloper project and generate a report that describes the areas of the application that need to be updated.

    4. Use the Configuration Wizard to extend an existing WebLogic domain with OAS/OC4J support libraries and redeploy the application.

    5. Use SmartUpgrade to generate application artifacts and deployment descriptors that can be deployed to WebLogic.

    Answer: B,D,E Explanation:


  • Oracle WebLogic SmartUpgrade is part of the Oracle Fusion Middleware 11g upgrade tools that were designed to maximize the automation of the upgrade process, minimize the application

    downtime and allows for rapid and seamless uptake of the Oracle Fusion Middleware 11g features and capabilities.

  • SmartUpgrade : (B) When generating an upgrade report into an existing project, an Oracle Application Server

configuration home could be specified to be included as part of the report. Additionally, both the

server home and OracleAS enterprise archives can be localized into the JDevelopoer project file

system by checking quot;Copy OC4J Deployment Archives Into Projectquot;.

  • SmartUpgrade : (E) The advisory reports and the configuration artifacts will be generated. The generated artifacts will be located at the JDeveloper project mywork directory

  • You can add product component functionality or additional applications and services to an existing WebLogic domain by extending it using the Configuration Wizard. For example, if you created a base WebLogic domain and you want to add the Avitek Medical Records Examples functionality, you can extend the domain by using the medrec.jar template.

    The Configuration Wizard simplifies the task of extending an existing WebLogic domain by

    using extension templates. Oracle provides various sample extension templates, as well as extension templates for various Fusion Middleware products. You can also create your own extension templates using WLST or the unpack command.

    Question No: 55

    Identify three reasons that explain why assigning more than one managed serve achieve better performance than running one managed server with more resources?

    1. Thread management inside the JVM process might be less effective than context switching between processes on the OS level. It is better to combine both these technologies to achieve full saturation of resources.

    2. Current CPUs are multicore units. So starting managed servers in the amount of physical cores and pinning them 1:1 to cores will always get the best performance.

    3. By a combination of prioritization of processes on the OS level and Work Manager in WLS, one could tune the whole environment more precisely.

    4. Assigning more than one managed server to hardware will never bring better performance.

    5. More instances means more connections to databases, so one could serve more concurrent calls on the database level. This is primarily why this approach will give better performance numbers.

    6. Depending on the profile of the application, having more JVMs with smaller heaps will lead to more predictable response times than fewer JVMs with a large heap.

    Answer: C,E,F Explanation:


  • Two or more Managed Servers can be configured as a WebLogic Server cluster to increase application scalability and availability. In a WebLogic Server cluster, most resources and services are deployed identically to each Managed Server (as opposed to a single Managed Server), enabling failover and load balancing. A single domain can contain multiple WebLogic Server clusters, as well as multiple Managed Servers that are not configured as clusters. The key difference between clustered and non-clustered Managed Servers is support for failover and load balancing. These features are available only in a cluster of Managed Servers.

  • A WebLogic Server cluster provides these benefits: Scalability

    The capacity of an application deployed on a WebLogic Server cluster can be increased dynamically to meet demand. You can add server instances to a cluster without interruption of service-the application continues to run without impact to clients and end users.


    In a WebLogic Server cluster, application processing can continue when a server instance fails. You quot;clusterquot; application components by deploying them on multiple server instances in the cluster-so, if a server instance on which a component is running fails, another server instance on which that component is deployed can continue application processing.

    Question No: 56

    Identify three components of the WebLogic JMS architecture.

    1. JMS Server

    2. JMS Module

    3. Node Manager

    4. Queue Manager

    5. Persistent Store

    Answer: A,B,E

    Explanation: The major components of the WebLogic JMS Server architecture, as illustrated in the figure below.

  • (A) JMS servers that can host a defined set of modules and any associated persistent storage that reside on a WebLogic Server instance.

  • (B) JMS modules contains configuration resources (such as queues, topics, and connections factories) and are defined by XML documents that conform to the weblogic- jmsmd.xsd schema.

  • Client JMS applications that either produce messages to destinations or consume messages from destinations.

  • JNDI (Java Naming and Directory Interface), which provides a resource lookup facility. JMS resources such as connection factories and destinations are configured with a JNDI name. The runtime implementations of these resources are then bound into JNDI using the given names.

  • (E) WebLogic persistent storage (file store or JDBC-accessible) for storing persistent

    message data.

    The following figure illustrates the WebLogic JMS architecture.

    Ensurepass 2018 PDF and VCE

    Reference: Understanding WebLogic JMS

    Question No: 57

    Assume that you would like to clone an existing WebLogic Domain and enable some customizations. What scenario would you choose?

    1. In the Enterprise Manager, find the domain to be cloned. Choose quot;Clone WebLogic Domainquot; from the context menu. In the graphical wizard, customize and extend the domain if needed. These steps will only clone only the domain configuration. Binaries with

      deployments are needed to be cloned by operation on the file system.

    2. In the Enterprise Manager, find the domain to be cloned. Choose quot;Clone WebLogic Domainquot; from the context menu. In the graphical wizard, customize the domain. These steps clone the binaries and domain configuration. If the extension is needed, perform it after cloning in the WebLogic web-based console.

    3. In the Enterprise Manager, find the domain to be cloned. Choose quot;Clone WebLogic Domainquot; from the context menu. In the graphical wizard, customize and extend the domain if it is needed. These steps clone the binaries and domain configuration.

    4. In the Enterprise Manager, find the domain to be cloned. Choose quot;Clone WebLogic Domainquot; from the context menu. These steps clone the binaries and domain configuration. If the customization or extension is needed, complete that after cloning in the WebLogic web-based console.

    5. In the file system, copy the domain structure of the configuration directory and paste it in the new location. Modify configuration files for address and port. If further customization is needed, open the WebLogic web-based console and perform these modifications.

    Answer: C

    Explanation: The Clone WebLogic Domain option launches a wizard that enables you to clone a WebLogic Domain from an existing reference domain that is already discovered with Cloud Control. It allows you to clone the Middleware Home and its binaries, and the domain configuration.

  • If you selected the Cloning a WebLogic Domain option, the Middleware Provisioning: Domain Configuration page appears. This page contains a set of links to several pages where you can enter the properties that are most likely to be reconfigured like domain name, listen addresses for the administration server and managed servers, Node Manager/Machine configuration, and JDBC data sources.

Question No: 58

Which new key architectural element introduced in WebLogic Server l2c should you take advantage of when designing Disaster Recovery Centers with active – passive mode?

  1. MAN Clusters, because they would allow you to synchronously replicate state in low latency networks

  2. WAN Clusters, because they would allow you to asynchronously replicate state in nonlow latency networks.

  3. Transaction Log in the database, because you could avoid synchronizing two replication technologies (database and file)

  4. Data Guard, because it is the most effective way to replicate a state across locations

  5. GoldenGate, because it is the most effective way to replicate a state across locations

Answer: E

Explanation: * Oracle GoldenGate

Oracle GoldenGate is Oracle’s strategic product for data distribution and data integration. It is a highperformance software application that uses log-based bidirectional data replication for real-time capture, transformation, routing, and delivery of database transactions across heterogeneous systems.


  • Oracle Active Data Guard

    Oracle Active Data Guard 11g is an option of Oracle Database Enterprise Edition that extends basic Data Guard functionality. It allows a physical standby database to be open as read-only while changes are applied to it from the primary database. This increases performance and return on investment by offloading ad-hoc queries, Web-based access, reporting, and backups from the primary database while also providing disaster protection.

  • Disaster recovery (DR) procedures ensure rapid recovery or continuation of a technology infrastructure after a natural or human-induced disaster. Oracle WebLogic Server 12c supports

    advanced disaster recovery and business continuity. Organizations can store transaction logs in an Oracle database instead of a file system, providing a highly available storage mechanism to improve the speed and reliability of disaster recovery operations. This permits them to utilize Oracle Active Data Guard or Oracle GoldenGate replication technology to move DR state information across data centers. Oracle’s enhanced DR architecture enables more effective recovery scenarios. Support for Oracle Exalogic and Oracle Exadata engineered systems ensures tremendous scalability for IT operations of any size.

  • Oracle WebLogic Server 12c places transaction logs on the database tier to improve the speed, reliability and availability of disaster recovery operations.

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Question No: 59

Which technology does WebLogic Server use to look up a WebLogic JMS resource?

  1. HTTP

  2. JNI

  3. JNDI

  4. T3

  5. LDAP

Answer: C

Explanation: Using JNDI, a JMS client can obtain access to a JMS provider by first looking up a ConnectionFactory. The ConnectionFactory is used to create JMS connections, which can then be used for sending and receiving messages. Destination objects, which represent virtual channels (topics and queues) in JMS, are also obtained via JNDI and are used by the JMS client. The directory service can be configured by the system administrator to provide JMS administered objects so that the JMS clients don#39;t need to use proprietary code to access a JMS provider.


* The Java Naming and Directory Interface (JNDI) is part of the Java platform, providing applications based on Java technology with a unified interface to multiple naming and directory services.

Question No: 60

A customer has a web application with HTTP Sessions that need to be replicated to a backup site that is more than 100 miles away from the primary site, connected over the Internet.

Which type of session replication in WebLogic is recommended?

  1. MAN Replication

  2. WAN Replication

  3. Synchronous Replication

  4. Asynchronous Replication

  5. Database Replication

Answer: D

Explanation: WAN HTTP Session State Replication

Resources in a wide area network (WAN) are frequently spread across separate geographical regions. In addition to requiring network traffic to cross long distances, these resources are often separated by multiple routers and other network bottle necks. Network communication in a WAN generally has higher latency and slower interconnect.

Slower network performance within a WAN makes it difficult to use a synchronous replication mechanism like the one used within a MAN. WebLogic Server provides failover across clusters in WAN by using an asynchronous data replication scheme.


HTTP Session State Replication

Weblogic Server uses two methods for replicating HTTP session state across clusters: in-memory replication

  • Using in-memory replication, WebLogic Server copies a session state from one server instance to another. The primary 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.

  • JDBC-based persistence

In JDBC-based persistence, WebLogic Server maintains the HTTP session state of a servlet or JSP using file-based or JDBC-based persistence.

JDBC-based persistence is also used for HTTP session state replication within a Wide Area Network (WAN).

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