Oracle 1z0-468 Practice 2021

NEW QUESTION 1
Which are two key factors in deciding when to configure OTD for SDP support?

• A. number of connections that OTD needs to manage
• B. size of the payload that will be load balanced
• C. whether Oracle Traffic Director is deployed with InfiniBand fabric
• D. request rate

Answer: C

NEW QUESTION 2
You plan to deploy your Coherence application to a new production environment. You want to ensure that the new environment supports multicast, and that all of the machines are connected to the same physical switch for optimal performance.
What two tools will help confirm that the new environment satisfies both criteria? (Choose two.)

• A. Coherence MulticastTest
• B. Coherence DatagramTest
• C. Coherence Console
• D. Coherence CohQL Command-Line

Answer: AD

Explanation:
http://www.oracle.com/technetwork/middleware/coherence/learnmore/oracle-coherence- 12c-deployment-3049521.pdf

NEW QUESTION 3
Which statement about JRockit Discovery Protocol (JDP) is true?

• A. JDP enables network auto discovery of JVMs.
• B. JDP is a subset of HTTP.
• C. JDP can be used by application to exchange serialized data between JVMs.
• D. JDP was initially introduced in the HotSpot VM 1.5.

Answer: A

NEW QUESTION 4
With which three activities does Virtual Assembly Builder help? (Choose three.)

• A. maintaining flexibility for developers
• B. reducing runtime errors
• C. enabling full access to infrastructure
• D. creating a standardized model for IT
• E. automating provisioning of the entire application topology

Answer: ADE

NEW QUESTION 5
How would you create an SLA based on the “JVM Runtime Up” metric for a specific WLS server?

• A. Deploy JVM Diagnostics and set a threshold on the JVMD agent up time.
• B. Create a Service target that uses the WLS Domain as its system, and the JVM Runtime as itsperformance metri
• C. Configure SLA by using that metric.
• D. Define a threshold on the metric on the All Metrics page, and define a rule to create an Event for that inciden
• E. Define an SLA on the count of Incidents.
• F. You cannot create an SLA on JVM-related metrics.

Answer: C

NEW QUESTION 6
An Oracle RAC Database appliance was initially deployed with two database instances. The load on the database has now increased and another instance needs to be provisioned.
How would you add one more instance of the earlier deployed appliance?

• A. Create and deploy a new assembly containing a single instance database appliance.
• B. Add a new single instance database appliance into the previously created assembly and redeploy it.
• C. Use the ScaleAppliance operation to scale up the deployed appliance instances from two to three.
• D. Use the createAssemblyInstance operation to create a new instance of the existing assembly and deploy the new assembly instance.

Answer: D

NEW QUESTION 7
You notice the following message in one of your cache server logs:

Which statement correctly explains this message?

• A. Member 102 received a MemberLeft message from the senior member (member 1) that member 74 has left the cluster.
• B. Member 1 received a MemberLeft message from the senior member (member 74) that member 102 has left the cluster.
• C. Member 1 received a MemberLeft message from the senior member (member 102) that member 74 has left the cluster.
• D. Member 74 received a MemberLeft message from the senior member (member 1) that member 102 has left the cluster.

Answer: A

NEW QUESTION 8
What is the correct order of API calls to perform an end-to-end assembly deployment operation?

• A. UploadAssemblyArchive -> RegisterAssemblyArchive -> CreateAssemblyInstance -> DeployAssemblyInstance -> UndeployAssemblyInstance -> DeleteAssemblyInstance -> UnregisterAssemblyArchive -> DeleteAssemblyArchive
• B. CreateAssemblyInstance -> UploadAssemblyArchive -> RegisterAssemblyArchive -> DeployAssemblyInstance -> UndeployAssemblyInstance -> UnregisterAssemblyArchive -> DeleteAssemblyArchive -> DeleteAssemblyInstance
• C. UploadAssemblyArchive -> RegisterAssemblyArchive -> DeployAssemblyInstance -> UndeployAssemblyInstance -> UnregisterAssemblyArchive -> DeleteAssemblyArchive
• D. RegisterAssemblyArchive -> UploadAssemblyArchive -> DeployAssemblyInstance -> UndeployAssemblyInstance -> DeleteAssemblyArchive -> UnregisterAssemblyArchive

Answer: B

NEW QUESTION 9
You have developed and tested your Coherence application on a single physical machine by using the following operational configuration:

What two configuration changes must be made to run your application on multiple physical machines using multicast? (Choose two.)

• A. Lower the logging severity level to 3.
• B. Change the unicast listener address to a non-loopback address.
• C. Increase the multicast listener time-to-live value.
• D. Specify a list of well-known addresses.

Answer: BD

Explanation:
https://docs.oracle.com/middleware/1212/coherence/COHAG/deploy_checklist.htm#COHA G5301

NEW QUESTION 10
Consider an application using a Coherence partitioned cache to store HTTP session data. There is a load balancer that performs client based affinity (or “sticky load balancing”), meaning that requests that come from a particular user will be routed to the same application server every time. Most user requests will read from the session, thus making near caching topology a good fit.
Which near cache configuration matches the requirements for this application?

• A. AUTO
• B. NONE
• C. ALL
• D. PRESENT

Answer: D

NEW QUESTION 11
A Coherence node dies and is removed from a cluster.
What two actions occur if that node was part of a distributed cache where backup_count = 1? (Choose two.)

• A. Access is blocked to all operations while the cluster is rebalanced.
• B. Data is re-partitioned so that all data is accessible again.
• C. Partitions are moved so that the data is balanced among remaining nodes.
• D. Backup partitions are promoted to be primary, and new backups are created.

Answer: AC

NEW QUESTION 12
Which tool is not shipped with the JRockit JDK?

• A. Mission Control
• B. Flight Recorder
• C. Studio Profiler
• D. Memory Leak Detector

Answer: D

NEW QUESTION 13
You are doing capacity planning for a Coherence application with one distributed cache (dcache), and one replicated cache (rcache). You have one index on dcache, and dcache has backup_count=1. Your requirement is that you must be able to tolerate one machine failure with no loss of data. You have three machines, each with 4 JVMs of 8 GB.
What three factors do you take into consideration in case of machine failure? (Choose three.)

• A. Each cache server will be responsible for more primary and backup data from dcache.
• B. The size of index data in each cache server is likely to grow.
• C. The size of rcache on each node will grow.
• D. Updates to rcache will result in more network traffic per machine.
• E. Updates to dcache will result in more network traffic per machine.

Answer: ABE

NEW QUESTION 14
Which plug-in does Oracle Traffic Director require you to install to load balance HTTP requests to WebLogic Server?

• A. mod_wls
• B. mod_weblogic
• C. mod_wl_ohs
• D. No plug_in is required
• E. mod_ohs_wl

Answer: C

NEW QUESTION 15
With which three tasks can JRockit Diagnostic Commands (JRCMD) be used? (Choose three.)

• A. load testing
• B. heap analysis
• C. native memory tracking
• D. controlling JRockit Flight Recorder
• E. debugging with breakpoints

Answer: BCD

Explanation:
https://sourcevirtues.com/2012/06/21/jrockit-jrcmd-useful-commands/

NEW QUESTION 16
Which component is optimized for the JRockit VM?

• A. swing-based desktop applications
• B. browser-based applets
• C. embedded devices
• D. server-side applications
• E. mobile phones

Answer: D

Explanation:
The Oracle JRockit JDK includes the Oracle JRockit Java Virtual Machine (JVM), which is developed uniquely for server-side applications and optimized for Intel architectures, ensuring reliability, scalability, and manageability for Java applications.
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NEW QUESTION 17
For operations that act on data that exists on multiple nodes, Coherence can do the processing in parallel, and put together the partial results from each node into a single result before sending it to the client.
Which feature in Coherence can be used to achieve this?

• A. Filters
• B. aggregators
• C. Indexes
• D. Entry Processors

Answer: B

NEW QUESTION 18
Which three plug-ins are pre-installed with EM 12c?

• A. Oracle Fusion Middleware
• B. Oracle Cloud Application
• C. Oracle Database
• D. Oracle MOS (My Oracle Support)
• E. Exalogic Elastic Cloud Infrastructure

Answer: ADE

NEW QUESTION 19
After going through a sizing exercise, you determine that your application will need 100 storage-enabled JVMs with 4 GB heaps. You have 10 physical machines with 16 cores and 32 GB of RAM.
Which performance-tuning best practice would be violated by deploying your application on these machines?

• A. Heap sizes should not be larger than 512 MB.
• B. OS socket buffers should be at least 2 MB.
• C. Avoid OS memory swapping/paging by not exhausting physical RAM.
• D. Do not exceed one JVM per core.

Answer: B

NEW QUESTION 20
Which type of appliance would you use to package custom applications into an appliance?

• A. WebLogic Server appliance
• B. external appliance
• C. generic appliance
• D. database appliance
• E. Oracle Tuxedo appliance

Answer: A

NEW QUESTION 21
Which four components are included in WLS Management Pack? (Choose four.)

• A. Real User Monitoring
• B. JVM Diagnostics
• C. Business Transaction Management
• D. Lifecycle Management
• E. Configuration Management
• F. Ops Center

Answer: BCDE

NEW QUESTION 22
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