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Oracle WebLogic Server 12c Essentials

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Oracle Certs Computer Studies Quiz on Oracle WebLogic Server 12c Essentials, created by Benjamin Keck on 21/09/2017.
Benjamin Keck
Quiz by Benjamin Keck, updated more than 1 year ago
Benjamin Keck
Created by Benjamin Keck over 6 years ago
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Resource summary

Question 1

Question
1. You deploy more than one application to the same WebLogic container. The security is set on JavaEE level and all deployed JavaEE applications use the same security roles. What is your recommendation for an architecture with those requirement, (Checked)
Answer
  • A. Combine all applications into a single one.
  • B. Define global roles on the WebLogic Domain level.
  • C. Use MS Active Directory to keep the roles there.
  • D. Use Oracle Identity and Access Management solution to simplify the management.
  • E. Keep role mapping in the external WebLogic Role Mapped developed for that solution.

Question 2

Question
2. When your WebLogic Server solution needs to be scaled out with additional capacity and you don’t want to add additional hardware, which three techniques should you us? (Checked)
Answer
  • A. Assign more than one managed server to a physical hardware that allows better CPU utilization.
  • B. Assign more than one application to one managed server to better utilize threads within a single JVM process
  • C. Assign the same application to more than one managed server to load balance requests between servers.
  • D. Assign the same heap size to the managed server across the cluster for easier control of memory footprint
  • E. Create a virtualized environment with hypervisor for an easier solution

Question 3

Question
3. A highly available WebLogic cluster in UNIX is configured for automatic server migration. Node Manager is configured on both machines to start managed servers. How should you simulate a managed server failure to test whether automatic server migration is working?
Answer
  • A. Shut down the managed server from the WebLogic console.
  • B. Shut down the managed server using the WLST command through Node Manager.
  • C. Run “kill -9” once to kill the managed server process.
  • D. Run “kill -9” to kill the managed server process, and run “kill -9” one more time if the managed server is restarting.

Question 4

Question
4. A customer claims that while redeploying a web application in the production system all their customers are having to log in again. What do you recommend? (Checked)
Answer
  • A. Sessions can’t be preserved when redeploying applications. The customer needs to consider redeployment during late nights when the traffic is low.
  • B. Change the flag responsible for the development mode of their environment. In the production mode, all sessions are preserved while redeploying application.
  • C. Change Hotspot to JRockit. Sessions can’t be preserved on HotSpot when redeploying application.
  • D. Use flag -version when redeploying the application. This will switch on the Side By Side deployment feature and preserve existing sessions.
  • E. Open a service request with Oracle Support. This is unexpected behavior. Sessions are preserved without any extra settings.

Question 5

Question
5. A common approach to solve application performance issues is to add more hardware. Which two reasons describe why this alone does not always solve performance problems? (Checked)
Answer
  • A. There may be a bottleneck in the application that additional hardware would not solve.
  • B. Adding more hardware is costly and time consuming.
  • C. Adding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.
  • D. Adding more hardware may introduce new configuration requirements that need to be tested.

Question 6

Question
6. A customer has a critical, performance-sensitive web application that connects to a multimode Oracle RAC database. Which feature of WebLogic can provide significant performance benefit? (Checked)
Answer
  • A. The Web Session Affinity feature of Active GridLink for RAC
  • B. WebLogic Clustering
  • C. The Transaction Affinity feature of Active GridLink for RAC
  • D. Coherence*Web Session Replication

Question 7

Question
7. A customer needs to implement a Highly Available solution for JMS that has a primary data center and a backup. Which three steps would you perform when designing your solution? (Checked)
Answer
  • A. Store Transaction Logs in a database and use Database stores for JMS to make replication between sites easier.
  • B. Use file based Transaction Logs and JMS stores and implement a separate replication solution for files in addition to database in case database replication fails.
  • C. Implement Oracle RAC at each site to provide a highly available solution within each datacenter.
  • D. Configure Whole Server Migration to migrate WebLogic Managed Servers from the primary to the secondary site.
  • E. Configure Automatic Service Migration for JMS high availability within a datacenter.

Question 8

Question
8. Which WebLogic optimization allows one non-XA resource to participate in a distributed transaction? (Checked)
Answer
  • A. Enabling Pinned to Thread
  • B. Enabling Logging Last Resource
  • C. Increasing the Statement cache size
  • D. Setting the statement cache type to LRU
  • E. Setting the initial and maximum capacity to the same number

Question 9

Question
9. A customer has a Stock Watch application that publishes stock recommendations to different customers and programs. The stock recommendation message should be processed by only one of the JMS Servers in the cluster. Which JMS model should be used? (Checked)
Answer
  • A. JMS Queue
  • B. Distributed JMS Queue
  • C. Uniform Distributed Topic
  • D. Partitioned Distributed Topic

Question 10

Question
10. 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? (Checked)
Answer
  • A. The Web Session Affinity feature of Active GridLink for RAC.
  • B. WebLogic Clustering
  • C. The Transaction Affinity feature of Active GridLink for RAC
  • D. Coherence*Web Session Replication

Question 11

Question
11. A customer needs to ensure that the number of threads servicing an application does not exceed the number of database connections available to the application. What step must you take to address this situation? (Checked)
Answer
  • A. Configure a Max Threads Constraint and add your application to the list of applications for the Constraint.
  • B. Configure a Work Manager with a Maximum Threads Constraint tied to the Connection Pool and configuration your application to use the Work Manager.
  • C. Configure a Work Manager with a Minimum Threads Constraint tied to the Connection Pool and configure your application to use the Work Manager.
  • D. Configure a global MaxThreads constraint and target it to the server or clusters where your application is deployed.
  • E. Configure the startup parameter “-Dwls-maxThreads” to be the same as the number of database connections configured.

Question 12

Question
12. What are the three steps you should take to tune a JDBC Connection pool in WebLogic from the initial settings in a production environment? (Checked)
Answer
  • A. Ensure the maximum size is increased to an appropriate setting
  • B. Set the minimum and maximum size of the connection pool to the same value.
  • C. Increase the statement cache size.
  • D. Add more heap to the JVM.
  • E. Add more nodes to the cluster.

Question 13

Question
13. You have a durable subscriber, and the subscriber is down or not reachable when the message is produced. Which two options regarding the expiry of these messages are true? (Checked)
Answer
  • A. After the subscriber is unavailable for 10 minutes
  • B. When the subscriber is available
  • C. After the subscriber is unavailable for after an hour
  • D. Are available until the specified time elapses
  • E. Are expired instantly

Question 14

Question
14. Identify the two options that can be used to patch WebLogic Server without Incurring application downtime. (Checked)
Answer
  • A. Automated process using the Admin Server
  • B. Automated using JDeveloper
  • C. Manual process with or without Smart Update
  • D. Scripted with WLST
  • E. Automated process using Enterprise Manager 12c

Question 15

Question
15. WebLogic 12c, the Maven plug-in has been enhanced with which Maven goal? (Checked)
Answer
  • A. wls:unzip, wls:install-domain, wls:start-domain, wls:wlst, wls:appc
  • B. wls:install, wls:install-domain, wls:start-domain, wls:wlst, wls:appc
  • C. wls:unzip, wls:create-domain, wls:start-domain, wls:wlst, wls:appc
  • D. wls:install, wls:create-domain, wls:start-server, wls:wlst, wls:appc:

Question 16

Question
16. Assume that you would like to clone an existing WebLogic Domain and enable some customizations. What scenario would you choose? (Checked)
Answer
  • A. In the Enterprise Manager, find the domain to be cloned. Choose “Clone WebLogic Domain” 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.
  • B. In the Enterprise Manager, find the domain to be cloned. Choose “Clone WebLogic Domain” 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.
  • C. In the Enterprise Manager, find the domain to be cloned. Choose “Clone WebLogic Domain” 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.
  • D. In the Enterprise Manager, find the domain to be cloned. Choose “Clone WebLogic Domain” 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.
  • E. 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.

Question 17

Question
17. Which three scenarios are true about Domains? (Checked)
Answer
  • A. Domains can be created using the Configuration Wizard.
  • B. Domains can be created using WLST.
  • C. Domain configuration files are located in the WebLogic home directory.
  • D. Domains can be created based on a domain template.

Question 18

Question
18. Identify three components of the WebLogic JMS architecture. (Checked)
Answer
  • A. JMS Server
  • B. JMS Module
  • C. Node Manager
  • D. Queue Manager
  • E. Persistent Store

Question 19

Question
19. How can you configure High Availability for interacting with a non-Oracle database using WebLogic? (Checked)
Answer
  • A. Configure multiple physical data sources and reuse the same JNDI name for each.
  • B. Use the “compatibility” option of Active GridLink to enable compatibility with non-Oracle databases.
  • C. Configure a single physical data source for each node in a database cluster and wrap it using Multi Data Source.
  • D. Configure a Data Source Group that contains a physical connection pool to each node in the database cluster.

Question 20

Question
20. Which feature is enabled when you start a WebLogic server with the –DserverType=wlx option? (Checked)
Answer
  • A. JDBC
  • B. JCA
  • C. JMS
  • D. EJB
  • E. Java EE

Question 21

Question
21. Identify three unique integration features of Spring and WebLogic Server. (Checked)
Answer
  • A. Ability to automatically convert Spring application to JavaEE 6 framework
  • B. Ability to export the WebLogic Container feature to another Spring enabled JavaEE server.
  • C. Ability to extend the WebLogic Server console with some Spring-related pages
  • D. Official support of Spring apps inside WebLogic by Oracle Support
  • E. Support for injection of WebLogic MBeans and Resources into Spring applications

Question 22

Question
22. An application is using WebLogic JMS Store and Forward to forward messages from a local JMS queue a remote WebLogic JMS destination. You need to determine if the messages are being sent from the local Weblogic Server. Where do you find information and metrics about Store and Forward components in the WebLogic Admin Console? (Checked)
Answer
  • A. JMS Persistent Store
  • B. JMS Server
  • C. JMS Distributed Destination
  • D. JMS Store and Forward
  • E. Automatic Service Migration

Question 23

Question
23. You want to use WLST to view metrics for a running domain. Which command should you issue to navigate through the Mbean hierarchy containing the metrics? (Checked)
Answer
  • A. runtime ()
  • B. runtimeMbeanServer ()
  • C. connectRuntime ()
  • D. beginRuntime ()
  • E. serverRuntime ()

Question 24

Question
24. Which two statements are true regarding the WebLogic domain? (Checked)
Answer
  • A. A WebLogic domain can have more than one Administration server.
  • B. A WebLogic domain has at least one WebLogic server.
  • C. A WebLogic domain can have at the most one cluster.
  • D. A WebLogic domain can cross multiple physical machines.
  • E. Each WebLogic domain is associated with a different Node Manager.

Question 25

Question
25. What does the Fast Connection Failover feature of Active GridLink for RAC provide? (Checked)
Answer
  • A. Instant notification of a RAC node failure so applications never have to retry a transaction that was sent to a node that failed during the transaction
  • B. Near-instant notification of the failure of a RAC node failure that minimizes the possibility connection to a failed node being provided to an application
  • C. Application level notification of a failed RAC node such that an application can retry a transaction if required
  • D. Faster failover for Multi Datasources
  • E. Guaranteed transaction high availability when interacting with an Oracle RAC Database

Question 26

Question
26. What are the two proper locations of deployment descriptors files inside of archives deployed to WebLogic? (Checked)
Answer
  • A. The WEB-INF subdirectory for a WAR file
  • B. The META-INF subdirectory for an EAR file, or EJB-JAR
  • C. The DD-INF subdirectory
  • D. The root of archive
  • E. Any searchable location

Question 27

Question
27. You completed the development of a new application and want to create a new domain in a new environment for functional testing. You want to have the same settings for your new domain as your old domain, with the option of changing the configuration in the new target environment. Which two actions should you execute?
Answer
  • A. Use the introspect () command in WLST to gather the configuration information from the original domain.
  • B. Use pack/unpack to transfer the domain from one machine to another.
  • C. Create a domain template from the original domain using the Domain Template Builder and use the Configuration Wizard to create a new domain from the template.
  • D. Use the Admin Console of the original domain to create a domain template from the original domain and use the Configuration Wizard to create a new domain from the template.

Question 28

Question
28. You want to capture WebLogic internal events correlated with JVM events for viewing offline. What three actions must you take to enable this within WebLogic? (Checked)
Answer
  • A.Run WebLogic in a JRockit JVM and ensure the Flight Recorder is enabled.
  • B. Configure the WebLogic Diagnostic Framework Event Volume to Low, Medium, or High depending on the type of events you want to capture.
  • C. Configure the WebLogic Diagnostic Framework bridge to send events to the JRockit Flight Recording.
  • D. Take a dump from the default recording or create a new recording for the time period you want to capture.

Question 29

Question
29. You have a domain that was created and configured with WebLogic 10.3.5. You want to upgrade the domain to use WebLogic 12c. Which Oracle tool must you use to upgrade your domain? (Checked)
Answer
  • A. Oracle WebLogic Domain Upgrade tool
  • B. Smart Update
  • C. Smart Upgrade
  • D. No tool required, just install WebLogic 12c, update the domain to point to the new WebLogic iinstallation and start your domain.
  • E. JDeveloper

Question 30

Question
30. A customer has a development environment that uses the auto-deployment feature. The customer claims the application is not redeployed even if the new version is copied to an application subdirectory. Which two parameters of the configuration should you check? (Checked)
Answer
  • A. Check if archive file in the compressed version has a new REDEPLOY file.
  • B. If server was started in the Development Mode. Auto-deployment is not supported in production mode.
  • C. If the application includes an EJB 3 module. Auto-deployment is not supported for EJBs.
  • D. You change JVM from HotSpot to JRockit. Auto-deployment is not supported in HotSpot auto deployment.
  • E. If the domain is a single-server domain. Auto-deployment is not supported in multiserver domains.

Question 31

Question
31. Which new key architectural element introduced in WebLogic Server 12c should you take advantage of when designing Disaster Recovery Centers with active – passive mode? (Checked)
Answer
  • A. MAN Clusters, because they would allow you to synchronously replicate state in low latency networks
  • B. WAN Clusters, because they would allow you to asynchronously replicate state in non low latency networks.
  • C. Transaction Log in the database, because you could avoid synchronizing two replication technologies (database and file)
  • D. Data Guard, because it is the most effective way to replicate a state across locations
  • E. GoldenGate, because it is the most effective way to replicate a state across locations

Question 32

Question
32. Integration between _______ multi-data sources and _____ is defined as the Grid Link for RAC. (Checked)
Answer
  • A. Oracle WebLogic Server; Oracle Database
  • B. Oracle WebLogic Server clusters; Oracle Database
  • C. Oracle WebLogic Server clusters; Oracle Database RAC
  • D. Oracle OC4J; Oracle Database RAC
  • E. Oracle WebLogic Server; Oracle OC4J

Question 33

Question
33. An application that needs to use a shared library has a deployment descriptor that only specifies the Specification-Version and Extension-Name of the shared library. When the application is deployed, which shared library will be used? (Checked)
Answer
  • A. The application will go into an ADMIN state and fail to deploy because the implementation Version is required.
  • B. The application will be deployed but the classes in the shared library will not be available.
  • C. If you are using the WebLogic Admin Console, you will be prompted for the version you want to use; otherwise, the application will fail to deploy.
  • D. If there are multiple versions of the shared library deployed, WebLogic will use the one with the highest Implementation-Version.
  • E. If there are multiple versions of the shared library deployed, WebLogic will use the one that was deployed most recently.

Question 34

Question
34. What is the name of the WebLogic specific deployment descriptor of Java Enterprise Application? (Checked)
Answer
  • A. application.xml
  • B. weblogic.xml
  • C. web.xml
  • D. weblogic-application.xml
  • E. config.xml

Question 35

Question
35. Identify four features of WebLogic that provide value above and beyond a simple Java EE container. (Checked)
Answer
  • A. Active GridLink for RAC
  • B. Support for enterprise Web Services standards beyond Java EE specification
  • C. Integration with Enterprise Manager
  • D. Market leading performance
  • E. Java EE6 Specification Support
  • F. Java SE 7 support

Question 36

Question
36. In WebLogic, the development feature to automatically load/refresh the changes of a Java classes at run time is called__________. (Checked)
Answer
  • A. HotSwap
  • B. FastSwap
  • C. HotDeploy
  • D. FastDeploy
  • E. FastReload

Question 37

Question
37. You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the WebLogic Node Manager to start servers for each product. Which statement is true? (Checked)
Answer
  • A. You need to install a separate node manager for each Middleware Home that has a unique and minor WebLogic Version Number.
  • B. You need to install and configure only one instance of Node Manager for all products, regardless of the WebLogic version number.
  • C. You need to install and configure a separate Node Manager for each domain of each product want to run on the machine.
  • D. You need to install one Node Manager but use separate SSL certificates for each product when securing the network communication to the machine.

Question 38

Question
38. You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the WebLogic Node Manger to start servers for each product. Which statement is true? (Checked)
Answer
  • A. You need to install a separate node manager for each Middleware Home that has a unique major and minor WebLogic Version Number.
  • B. You need to install and configure only one instance of Node Manager for all products, regardless of the WebLogic version number.
  • C. You need to install and configure a separate Node Manager for each domain of each product you want to run on the machine.
  • D. You need to install one Node Manager but use separate SSL certificates for each product when searching the network communication to the machine

Question 39

Question
39 . What does the Web Session Affinity feature of Active GridLink for RAC provide? (Checked)
Answer
  • A. It mandates that HTTP sessions must be stored in an Oracle RAC database for the highest throughput and availability.
  • B. It pins a connection to the thread associated with a web session such that subsequent connection reservations are significantly faster.
  • C. It stores a reference to the connection associated with an HTTP session in the session object.
  • D. It allows developers to modify how their web application reserves and releases database connections to allow enhanced performance.
  • E. It provides improved performance by associating a database connection with an HTTP session.

Question 40

Question
40. Which statement is FALSE regarding WebLogic Server 12c? (Checked)
Answer
  • A. Supports Java EE 6.0
  • B. Supports WebLogic Web Services 8.1 Application Environment
  • C. Includes a new Maven plug-in
  • D. Supports use of annotations in resource adapter class files

Question 41

Question
41. Which is the correct WebLogic Server distribution version to download if you want to install WebLogic Server 12c to run in 64 bit mode on a 64 bit Linux X86? (Checked)
Answer
  • A. Linux x86 with 64 bit JVM
  • B. ZIP distribution for Linux
  • C. Linux x86 with 32 bit JVM
  • D. Generic distribution
  • E. Network installer

Question 42

Question
42. Which WebLogic edition bundles JRockit Real Time? (Checked)
Answer
  • A. WebLogic Server Standard Edition
  • B. WebLogic Server Enterprise Edition
  • C. WebLogic Server Suite
  • D. WebLogic Server Grid Edition
  • E. WebLogic Server Cloud Edition

Question 43

Question
43. Identify three advantages of Active GridLink for RAC over multidata source. (Checked)
Answer
  • A. Isolates WebLogic from RAC changes
  • B. Has a simple configuration
  • C. Enables statement caching
  • D. Performs faster failure detection and failover
  • E. Is supported in WebLogic Domain Templates

Question 44

Question
44. Which two elements of the Java Enterprise Application Archive are required? (Checked)
Answer
  • A. EJB Archive
  • B. Deployment Descriptor
  • C. META-INF sub directory
  • D. Resource Adapter archive
  • E. Java library

Question 45

Question
45. A customer wants to improve the availability of a web application and provide more predictable scalability when scaling out the application. Which Feature of WebLogic should you recommend to help solve this problem? (Checked)
Answer
  • A. Oracle Web Grid
  • B. ActiveCache
  • C. Coherence Grid Edition
  • D. WebLogic Session Replication
  • E. Coherence Web Edition

Question 46

Question
46. Identify the three processes that customers can choose for patching WebLogic Server. (Checked)
Answer
  • A. Download patches from My Oracle Support and manage them using Smart Update.
  • B. Use Enterprise Manager to download patches from My Oracle Support and apply patches to WebLogic.
  • C. Download patches from My Oracle Support and manually modify the classpath of the application server (though it is not recommended).
  • D. Download patches from My Oracle Support and apply them using the WebLogic Admin Console.
  • E. Use the Admin Console to connect to My Oracle Support and download patches and then target them to the domain.

Question 47

Question
47. You want to configure WebLogic so that Managed Servers are restarted when they are in a FAILED state. Which three steps are necessary to accomplish this? (Checked)
Answer
  • A. Configure Node Manager on the machines where WebLogic Managed Servers need to be started/restarted.
  • B. Enable “Auto Restart” in the Node Manager Configuration.
  • C. Enable “Auto Kill if Failed” in the Node Manager Configuration.
  • D. Enable “Auto Kill if Failed” for the Managed Server in question.
  • E. Enable “Auto Restart” for the Managed Server in question.

Question 48

Question
48. Which four actions can you perform using the WebLogic Admin Console? (Checked)
Answer
  • A. Stop and start Managed Servers using the Node Manager.
  • B. Stop and start Coherence Servers using the Node Manager.
  • C. Create a WebLogic Domain Template.
  • D. Create and target JDBC connection pools.
  • E. Create and target WebLogic Diagnostic Framework Diagnostic Modules.
  • F. Change Java command-line parameters at run time.

Question 49

Question
49. What is the architectural benefit of keeping WebLogic Server transaction log in the database? (Checked)
Answer
  • A. Oracle does not allow replicating files between data centers, so keeping transaction log in database allows for replication.
  • B. Many transactions in WebLogic are database centric, so keeping log in database makes Two Phase Commit protocol possible.
  • C. It obviates the need to keep in sync two replication technologies (file and database) between data centers. The single replication technology is used for frequently changing data.
  • D. Transaction log in a file system is extremely slow so it cannot be efficiently replicated.

Question 50

Question
50. Which two tasks can be performed when WLST is in OFFLINE mode? (Checked)
Answer
  • A. Modifying the configuration of an online domain
  • B. Modifying the configuration of an offline domain
  • C. Viewing runtime performance data in ONLINE mode
  • D. Viewing runtime performance data in OFFLINE mode
  • E. Creating and extending domains

Question 51

Question
51. A web application is bound to the context named “/webapp” and the client uses the browser and makes a request to the resource http://server:port/webapp/ctxl/resource. Where do you place this resource inside the web application structure? (Checked)
Answer
  • A. In the subdirectory /WEB-INF/ctxl
  • B. In the subdirectory /META-INF/ctxl
  • C. In the subdirectory /ctxl in the root of the archive
  • D. in the subdirectory /ctxl/resource in the root of the archive
  • E. In the root of the archive

Question 52

Question
52. Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM? (Checked)
Answer
  • A. -xx:+PrintGCDetails
  • B. -xx:+PrintGCTimeStamps
  • C. -xx:+HandlePromotionFailure
  • D. -verbose:gc
  • E. -server

Question 53

Question
53. You are configuring the data source for an Oracle database. You will need to specify a test table for WebLogic to test the status of the database. Which option should you choose? (Checked)
Answer
  • A. A table name which has 100s of records
  • B. A table name which has 10s of records
  • C. A table name which has empty records
  • D. A table name which has 1000s of records
  • E. Never use a table name

Question 54

Question
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 to 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’s application and server configuration? (Checked)
Answer
  • A. Use Oracle Upgrade Manager to create a new WebLogic domain template from an OAS/OC4J installation and redeploy the application.
  • B. Use SmartUpgrade to analyze the OAS/OC4J server configuration and create WebLogic configuration files.
  • C. 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.
  • D. Use the Configuration Wizard to extend an existing WebLogic domain with OAS/OC4J support libraries and redeploy the application.
  • E. Use SmartUpgrade to generate application artifacts and deployment descriptors that can be deployed to WebLogic.

Question 55

Question
55. You want to create a WebLogic domain in a production environment. Which three actions should you perform? (Checked)
Answer
  • A. Use a multinode WebLogic domain.
  • B. Use a single-node WebLogic domain.
  • C. Use clusters.
  • D. Refrain from using clusters.
  • E. Install WeLogic in production mode with CA signed certificates.

Question 56

Question
56. You are configuring a JMS server with a need for load balancing the messages. To achieve the load balance you should _______and _______. (Checked)
Answer
  • A. Use regular queues and topics
  • B. Use distributed queues and topics
  • C. Not use subdeployments
  • D. Disable server affinity
  • E. Use message paging

Question 57

Question
57. Which two outcomes result when a domain is created in development mode? (Checked)
Answer
  • A. WebLogic server starts automatically upon the restarting of the machine
  • B. Each new cluster will automatically be created with two managed servers
  • C. boot.properties file automatically stored
  • D. Creation of an auto deploy folder used for the application to deploy automatically
  • E. Node Manager will be automatically configured

Question 58

Question
58. 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? (Checked)
Answer
  • A. MAN Replication
  • B. WAN Replication
  • C. Synchronous Replication
  • D. Asynchronous Replication
  • E. Database Replication

Question 59

Question
59. Identify three reasons that explain why assigning more than one managed server achieves better performance than running one managed server with more resources? (Checked)
Answer
  • A. 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.
  • B. 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.
  • C. By a combination of prioritization of processes on the OS level and Work Manager in WLS, one could tune the whole environment more precisely.
  • D. Assigning more than one managed server to hardware will never bring better performance.
  • E. 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.
  • F. 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.

Question 60

Question
60. Identify four valid requests in a RESTful service using JAX-RS. (Checked)
Answer
  • A. GET
  • B. PUT
  • C. UPDATE
  • D. DELETE
  • E. POST
  • F. REMOVE

Question 61

Question
61. You deployed a Java EE Shared Library and want to use it from an application that is also deployed on the same cluster. Which two manifest attributes must be specified at a minimum with corresponding values in the deployment descriptor of the application that requires (Checked)
Answer
  • A. Implementation-Version
  • B. Specification-Version
  • C. Extension-Name
  • D. Specification-Vendor
  • E. Implementation-Vendor

Question 62

Question
62. In WebLogic 10.3.6 and 12c, transaction logs can optionally write to a JDBC store instead of a file store on the file system. Identify the three benefits as a result of this capability.(Checked)
Answer
  • A. Simplified disaster recovery architecture and efforts
  • B. Better performance than writing logs to a file store
  • C. Common storage of transaction logs with application data
  • D. Common replication of transaction logs with application data
  • E. Higher transaction throughput

Question 63

Question
63. A WebLogic team is developing an enterprise application from their desktop WebLogic environment. All development systems are connected to the same eight data sources for testing. As a WebLogic Administrator supporting this team, which two actions should you perform to free the developers from creating and configuring all the data sources on their desktop WebLogic environment? (Checked)
Answer
  • A. Provide the team with a WebLogic domain template with the testing data sources configured.
  • B. Provide the development team with a preconfigured domain archive file.
  • C. Provide the development team with the [datasource] -jdbc.xml file to overwrite their local copy.
  • D. Create the data sources on behalf each of the developer.
  • E. Provide the development team with WLST scripts to create and configure the testing data sources.

Question 64

Question
64. Which two IDEs are supported development environments for WebLogic Server 12c in version 12.1.1? (Checked)
Answer
  • A. Websphere Developer Studio
  • B. NetBeans
  • C. InteliJ IDIA
  • D. JDeveloper
  • E. Eclipse
  • F. WebLogic Workshop

Question 65

Question
65. A customer stores environmental settings in the deployment descriptors of an application. Whenever they promote the application version from testing to the production environment, they need to open the archive and modify the deployment descriptor. This process is against their security policy. What approach should you recommend to leverage WebLogic features such that they do not have to modify the application archive for different environments? (Checked)
Answer
  • A. Keep environmental data in the global settings of domain and the application can read it from the domain where it runs.
  • B. Keep environmental data in Deployment Plan XML files. It allows you to change parameters in the deployment descriptor without opening the archive file.
  • C. Keep environmental data in the database because it is the most effective way of parameterizing the environment.
  • D. Keep archive in exploded format so the customer does not have to open the archive files.
  • E. Eliminate all environmental settings from the application. There should not to be any environmental settings in the application.

Question 66

Question
66. A customer wants to send JMS messages to a remote WebLogic server from a Java SE application over an unreliable network connection. Which feature of WebLogic JMS will enable the customer to send messages from a Java SE client to a JMS destination that is not always easily reached? (Checked)
Answer
  • A. SAF Target
  • B. SAF Imported Destination
  • C. SAF Client
  • D. SAF Server
  • E. Distributed SAF JMS

Question 67

Question
67. Which option must you choose to configure Node Manager on a machine (server or zone)? (Checked)
Answer
  • A. Configure one Node Manager per domain (for example, if there are two domains on one machine, then you will need to configure two Node Managers).
  • B. Configure one Node Manager per machine with any number of WebLogic instances running on it.
  • C. Configure one Node Manager per machine for all WebLogic, OHS, and OEM running on the same machine.
  • D. Configure one Node Manager for every WebLogic instance.
  • E. Configure two or more Node Managers for every WebLogic instance.

Question 68

Question
68. Which action cannot be done in a scripted, automated fashion using WLST? (Checked)
Answer
  • A. Collecting run-time metrics and sending an email if user-defined thresholds are exceeded
  • B. Configuring Clusters and Managed Servers
  • C. Starting Managed Servers using the Node Manager
  • D. Installing WebLogic binaries on a remote machine using Node Manager
  • E. Configuring a Managed Server on a remote machine where the Node Manager is installed but no other Managed Servers from the domain exist

Question 69

Question
69. A customer has a WebTrade application that initially uses the embedded LDAP to authenticate users. To enhance security, the customer decides to use OAM to authenticate some of the users against an external LDAP store. For this to work, a customer configured an OAM Authenticator, but was not sure what to select for the Control Flag. What Control Flag should the customer choose? (Checked)
Answer
  • A. OPTIONAL
  • B. REQUISITE
  • C. REQUIRED
  • D. SUFFICIENT
  • E. MANDATORY

Question 70

Question
70. In the absence of shared storage between cluster nodes, which two actions can you take to configure a High Availability architecture? (Checked)
Answer
  • A. Move domain logs to a highly available database.
  • B. Move server logs to a highly available database.
  • C. Move transaction logs to a highly available database.
  • D. Move JMS persistent stores to a highly available database.
  • E. Move error logs to a highly available database.

Question 71

Question
71. Which two options best describe how the Maven Plugin for WebLogic enables WebLogic to be effectively used in a Continuous Integration environment? (Checked)
Answer
  • A. Execution of unit and integration tests
  • B. Management of the life cycle of a WebLogic domain including creation, configuration, and server life-cycle management
  • C. Deployment and undeployment of applications
  • D. Java profiling

Question 72

Question
72. You deploy two different applications to the WebLogic container. One application use Xerces parser version A and the other application uses Xerces parser version B. Both these versions are different from the parser version that the WebLogic server uses internally. You want to use the Filtering Classloader feature to solve this problem. What action would you take to generate proper filtering Classloader entries? (Checked)
Answer
  • A. Modify the applications to use the same version that WebLogic uses internally.
  • B. Based on available examples of Filtering Classloader entries, try to modify get the proper entries.
  • C. Deploy and use the Classloader Analyzing Tool to resolve all conflicts with conflicting libraries. This tool will generate all proper entries.
  • D. Split the application into separate WebLogic containers and use different WLS versions of Xerces but identical that applications require.
  • E. Look for a WebLogic release that uses the same version of Xerces that the applications use.

Question 73

Question
73. When a critical error occurs, which module in Enterprise Manager will automatically collect diagnostics data from WebLogic Server? (Checked)
Answer
  • A. Reports
  • B. Compliance
  • C. Support Workbench
  • D. Asset Discovery
  • E. Visual creation of JDBC DataSource object to Oracle RAC

Question 74

Question
74. Which technology does WebLogic Server use to look up a WebLogic JMS resource? (Checked)
Answer
  • A. HTTP
  • B. JNI
  • C. JNDI
  • D. T3
  • E. LDAP

Question 75

Question
75. When you use WebLogic Management Pack EE, which three operations are enabled compared to managing WebLogic Server only through web console? (Checked)
Answer
  • A. Management of many WebLogic Server Domains from a single web console
  • B. Tracking changes in the configuration of WebLogic Domain
  • C. Automation of provisioning process in the new environment
  • D. Checking compliance with the licenses that a customer has
  • E. Visual creation of JDBC DataSource object to Oracle RAC

Question 76

Question
76. In a Java EE messaging application, one MDB is consuming a lot of memory at high traffic. What configuration should you use to prevent possible out-of-memory error at high traffic and at the same time not losing messages? (Checked)
Answer
  • A. Configure a Work Manager for the MDB with a Maximum Thread Constraint.
  • B. Configure a Work Manager for the MDB with a Minimum Thread Constraint.
  • C. Configure a Work Manager for the MDB with a Maximum Thread Constraint and a Capacity Constraint.
  • D. Configure a Work Manager for the MDB with a Minimum Thread Constraint and a Capacity Constraint.
  • E. Configure a Work Manager for the MDB with both a Maximum Thread Constraint and Minimum Thread Constraint.

Question 77

Question
77. A customer is developing a custom application that involves a multistep provisioning process for a new account. There is a custom Java client application that is generating multiple JMS messages as part of the process and sending them to the WebLogic tier where they are processed. Which three steps must you take to implement the solution to allow for scalability and parallel processing of multiple simultaneous provisioning requests while ensuring messages for an individual process are not delivered out of order? (Checked)
Answer
  • A. Update the client application that is creating the JMS messages to use Unit of Work.
  • B. Configure a WebLogic Cluster for Distributed JMS.
  • C. Update the client application that is creating the JMS messages to use Unit of Order.
  • D. Enable XA Transactions on the JMS Connection Factory used by the client application.
  • E. Enable Load Balancing on the JMS connection factory used by the client application.

Question 78

Question
78. You want to migrate an application that was developed for OAS/OC4J to WebLogic. The application uses Oracle Streams Advanced Queuing (AQ). You configured a Foreign JMS Server and Data Source but you are not able to send messages to the AQ destination and see them reach the database. Which two things are missing in this configuration? (Checked)
Answer
  • A. Nothing, there may be a network connection issue
  • B. A Foreign JMS Connection Factory
  • C. A JMS Bridge to map the JNDI of the Local JMS Destination to the remote AQ destination
  • D. A mapping of the Foreign JMS Connection Factory to the Data Source where AQ is configured and installed.
  • E. Oracle AQ Java EE Shared Libraries not deployed and referenced by your application

Question 79

Question
79. An airline is building a booking system for its premium and general customers. The goal is to ensure premium members are given higher access priority when user traffic is high. What configuration will achieve this goal? (Checked)
Answer
  • A. Configure a Work Manager for premium users with a Minimum Thread Constraint.
  • B. Configure a Work Manager for premium users with a higher fair-share-request-class.
  • C. Configure a Work Manager for premium users with a higher response-time-request-class.
  • D. Configure a Work Manager general users with a Maximum Thread Constraint.
  • E. Configure a Work Manager for premium users with a custom request-class.

Question 80

Question
80. In the area of Performance Management and Diagnostics, which feature is supported in Oracle Enterprise Manager 12c? (Checked)
Answer
  • A. Search information in logs across multiple domains
  • B. View different log information in single console location
  • C. Save current performance data as baseline to be used in comparison with future data
  • D. Provides single dashboard across multi-tier composite application

Question 81

Question
81. What type of Java EE application can be upgraded to WebLogic 12c using the Smart Upgrade tool? (Checked)
Answer
  • A. GlassFish
  • B. iAS
  • C. WebLogic Server 11g
  • D. JBoss

Question 82

Question
82. WebLogic Node Manager can be used to manage the life cycle of WebLogic servers. WebLogic Node Manager is installed and started _____. (Checked)
Answer
  • A. Per Machine
  • B. Per Domain
  • C. Per Managed Server
  • D. Per Admin Server

Question 83

Question
83. In WebLogic 10.3.6 and WebLogic 12c on ExaLogic, performance of JMS is further improved through _____ and _____. (Checked)
Answer
  • A. Web Session Affinity
  • B. Concurrent Request Manager
  • C. Coherence
  • D. Elastic Message Overflow

Question 84

Question
84. What are four benefits of recommended basic architecture? (Checked)
Answer
  • A. Good load balancing between Presentation Tier and Object Tier
  • B. Easy administration
  • C. Flexible Load balancing
  • D. Optimal performance
  • E. Simple security

Question 85

Question
85. Active Cache is the integration of Coherence and WebLogic Server. Which component is NOT part of this integration? (Checked)
Answer
  • A. Coherence*Web
  • B. Coherence*Extend
  • C. TopLink Grid with Coherence
  • D. Coherence cluster lifecycle management in WebLogic Server
  • E. Named cache dependency Injection

Question 86

Question
86. Which product has guaranteed messaging and transactional integrity for 100% reliability, over 25 years of use in the world’s largest transaction applications? (Checked)
Answer
  • A. Coherence
  • B. Tuxedo
  • C. JRockit
  • D. WebLogic Server

Question 87

Question
87. For real time event processing, which three clients can you use? (Checked)
Answer
  • A. Java
  • B. C++
  • C. .NET
  • D. REST

Question 88

Question
88. Which four steps are involved to use Active Cache Dependency Injection in a WebLogic Java EE application? (Checked)
Answer
  • A. Deploy Active Cache shared library
  • B. Declare dependency on the shared library
  • C. Declare all dependency injection entries
  • D. Package tangosol-coherence-override.xml in modules classpath
  • E. Package coherence-cache-config.xml in modules classpath

Question 89

Question
89. To use Active Cache features in WebLogic 12c, which three libraries are needed from the WebLogic Server installation to be deployed in WebLogic Server? (Checked)
Answer
  • A. coherence-work.jar
  • B. coherence.jar
  • C. active-cache-1.0.jar
  • D. coherence-web-spi.war

Question 90

Question
90. Oracle Coherence is best classified as _____? (Checked)
Answer
  • A. A Database Product
  • B. A Middleware Product
  • C. An Object Relational Mapping (ORM) Tool
  • D. A Soft Load Balancer
  • E. An Application Product

Question 91

Question
91. Which four service offerings are included in Oracle Public Cloud? (Checked)
Answer
  • A. Database Service
  • B. Data Service
  • C. Java Service
  • D. Security Service
  • E. .NET Service
  • F. SOA Service
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