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1Z0-468 Real Exam Questions

Oracle Cloud Application Foundation Essentials

73 questions available · Page 1 of 8

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Question 1 Single choice

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

  1. A

    only one

  2. B

    one to three

  3. C

    one to five

  4. D

    There is no predefined limit

Show answer and explanation

Correct answer: C

Question 2 Multiple choice

Which three metrics are commonly used to evaluate garbage collector performance? (Choose three.)

  1. A

    Throughput

  2. B

    Pause time

  3. C

    Method area

  4. D

    Native threads

  5. E

    Heap size

Show answer and explanation

Correct answers: A, B, E

Explanation

http://www.oracle.com/technetwork/java/javase/tech/memorymanagement-whitepaper-1-
150020.pdf(page
5, performance metrics)

Question 3 Multiple choice

Which two JVM components can be configured to impact application performance? (Choose two.)

  1. A

    Heap

  2. B

    Local variables stack

  3. C

    Class loader

  4. D

    Bytecode interpreter

  5. E

    Garbage Collector

Show answer and explanation

Correct answers: C, E

Question 4 Multiple choice

Which two conditions ensure enabling SSL Mutual Authentication (two-way SSL?) (Choose two.)

  1. A

    There is confidential communication between client and server.

  2. B

    The server trusts the client and the client trusts he server.

  3. C

    The client is authorized to accessindex.html.

  4. D

    Clients can enter the DMZ.

Show answer and explanation

Correct answers: B, D

Question 5 Single choice

What information is needed in the process of creating a patch template for WLS Domain?

  1. A

    one or more patches to apply

  2. B

    the domain target

  3. C

    stage directory (if not already staged)

  4. D

    WLS Domain Administrator credentials, and Host credentials

  5. E

    Patch Plan

Show answer and explanation

Correct answer: D

Question 6 Multiple choice

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.)

  1. A

    dynamically increasing the partition count on a running server

  2. B

    configuring an overflow scheme so that spikes are handled gracefully

  3. C

    caching the results of the web service call with a configured expiration

  4. D

    dynamically adding Coherence cache servers to the cluster

Show answer and explanation

Correct answers: B, D

Question 7 Single choice

You are using Coherence to store state data that gets read frequently and updated only occasionally. Only 100 or so clients are logged in at any time, and state data is retrieved at login. You are running out of physical memory on the cache server tier, but CPU and network utilization is low. You have 100 GB Solid-
State Drives on every system, including clients. You would also like to provide faster access to state data for logged-in users.

Which configuration should you use for your system?

  1. A

    Configure Elastic Data on your clients with a near cache.

  2. B

    Configure a near cache on your client and a RAM Journal on your cache servers.

  3. C

    Configure a near cache on your client and a Flash Journal on your cache servers.

  4. D

    Because near caching does not work with Elastic Data, configure a near cache and an eviction policy on the cache servers.

Show answer and explanation

Correct answer: C

Question 8 Multiple choice

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.)

  1. A

    Coherence MulticastTest

  2. B

    Coherence DatagramTest

  3. C

    Coherence Console

  4. D

    Coherence CohQL Command-Line

Show answer and explanation

Correct answers: A, D

Explanation

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

Question 9 Single choice

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?

  1. A

    Heap sizes should not be larger than 512 MB.

  2. B

    OS socket buffers should be at least 2 MB.

  3. C

    Avoid OS memory swapping/paging by not exhausting physical RAM.

  4. D

    Do not exceed one JVM per core.

Show answer and explanation

Correct answer: B

Question 10 Single choice

How would you create an SLA based on the "JVM Runtime Up" metric for a specific WLS server?

  1. A

    Deploy JVM Diagnostics and set a threshold on the JVMD agent up time.

  2. B

    Create a Service target that uses the WLS Domain as its system, and the JVM Runtime as itsperformance metric. Configure SLA by using that metric.

  3. C

    Define a threshold on the metric on the All Metrics page, and define a rule to create an Event for that incident. Define an SLA on the count of Incidents.

  4. D

    You cannot create an SLA on JVM-related metrics.

Show answer and explanation

Correct answer: C