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Exam Code: 1z0-468
Exam Title: Oracle Cloud Application Foundation Essentials
Vendor: Oracle
Exam Questions: 75
Last Updated: July 3rd,2024

Question 1

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.

Correct Answer:B

Question 2

A company relies on third-party web services for data.
Which two Coherence features can be applied to shield its customers from anticipated spikes in demand of the web services, without suffering potential performance degradation? (Choose two.)

A. dynamically increasing the partition count on a running server
B. configuring an overflow scheme so that spikes are handled gracefully
C. caching the results of the web service call with a configured expiration
D. dynamically adding Coherence cache servers to the cluster

Correct Answer:BD

Question 3

A company has a billing and ordering application accessed by ten million subscribers. Some subscribers rarely log in, and others log in almost every day. The company's goal is to provide the quickest possible response to web requests. Accesses make repeated reads and occasional writes to user sessions, each of which is 4 KB.
Which architecture meets these needs?

A. a replicated cache, so that applications can always access data locally
B. there is too much data for Coherence to be effective in this scenario
C. a distributed cache with sticky sessions and near caching
D. a small replicated cache for frequent users and database read-through

Correct Answer:C

Question 4

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

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

Correct Answer:AB

Question 5

How many appliances can you deploy as part as an assembly?

A. only one
B. one to three
C. one to five
D. There is no predefined limit

Correct Answer:C