1z0-468 Exam Training Practice Tests (Oracle Cloud Application Foundation Essentials)]

Question 1

Identify four components of the Oracle Cloud Application Foundation. (Choose four.)

A. Virtual Assembly Builder B. Tuxedo C. Database D. Exalogic Elastic Cloud Software E. WebLogic Server F. Coherence

Correct Answer: A,B,E,F

Question 2

Which two mechanisms are explicitly monitored to determine death of a cluster member?
(Choose two.)

A. garbage collection B. stuck threads C. heartbeats D. TCP socket connections

Correct Answer: C,D

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Question 3

A customer is witnessing a lot of contention while accessing and updating a cached item.
Which feature alleviates the connection by shortening the time that the object is locked?

A. off-heap storage B. Entry Processors C. Near Cache D. Transaction Framework

Correct Answer: D

Question 4

Which tool is not shipped with the JRockit JDK?

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

Correct Answer: B

Question 5

An application frequently requests data (from s Coherence cache configured with a cache loader) that may not be available in the underlying data source. The cost of looking up data via the cache loader is expensive in terms of time and resources.
To reduce these costs, which configuration should be used to cache the notion that an entry is not available?

A. This can't be achieved with Coherence. B. Configure a "cache-miss-scheme" on the appropriate cache. C. Modify the application to maintain a "misses" cache to keep track of the entries that were expected to be found in the other cache, but were recently not found. D. Modify the cache loader to maintain a "map" of entries not found, and consult this map before attempting to load an entry from the external source.

Correct Answer: C

Question 6

Which two statements are true about minor or young garbage collections? (Choose two.)

A. Minor garbage collections are usually shorter, with minimal impact on performance. B. Minor garbage collection is triggered when the eden space is full. C. Permanent generation is included in minor garbage collection. D. Minor garbage collection does not occur when using a parallel collector. E. Minor garbage collection does not cause a stop the world operation.

Correct Answer: B,E

Question 7

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

Correct Answer: C,D

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Question 8

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. Use the createAssemblyInstance operation to create a new instance of the existing assembly and deploy the new assembly instance. 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. Create and deploy a new assembly containing a single instance database appliance.

Correct Answer: A

Oracle Cloud Application Foundation Essentials - 1z0-468 Exam Practice Test