Oracle 1Z0-468 Online Practice Questions and Exam Preparation

Oracle 1Z0-468 Online Questions & Answers

• Question 21:

  Which configuration file must a user edit to configure Oracle HTTP Server?

  A. httpd.conf
  B. obj.conf
  C. workers.properties
  D. magnus.conf
  E. oraclehttp.conf
  A. httpd.conf

• Question 22:

  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.
  B. OS socket buffers should be at least 2 MB.

• Question 23:

  Consider the following code:

  

  If the initial stock amount was 15, and 5 different clients (in different JVMs) attempted to execute the same code simultaneously, what would be the resulting level of stock?

  A. 20, because Coherence does implicit locking
  B. 15, because a concurrency control exception will be thrown
  C. 16, because of the lack of concurrency control
  D. undefined, because of the lack of concurrency control
  C. 16, because of the lack of concurrency control

• Question 24:

  Assume that network latency between two data centers is 5 milliseconds with minimal packet loss.

  Identify two problems with running one Coherence cluster that spans these two data centers (Choose two.)

  A. Outage in the WAN link can cause split brain.
  B. Access and writes to data takes longer to complete.
  C. Total loss of power in one data center can lead to split brain.
  D. Network latency will lead to cluster instability.
  A. Outage in the WAN link can cause split brain.
  B. Access and writes to data takes longer to complete.

• Question 25:

  What is the first step towards creating an appliance?

  A. introspection of an installed system
  B. introspection of a VM template
  C. fileset capture
  D. template creation
  D. template creation

• Question 26:

  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
  B. heap analysis
  C. native memory tracking
  D. controlling JRockit Flight Recorder

• Question 27:

  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.
  A. JDP enables network auto discovery of JVMs.

• Question 28:

  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.
  A. Minor garbage collection is triggered when the eden space is full.
  B. Minor garbage collection does not cause a stop the world operation.

• Question 29:

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

  A. one or more patches to apply
  B. the domain target
  C. stage directory (if not already staged)
  D. WLS Domain Administrator credentials, and Host credentials
  E. Patch Plan
  D. WLS Domain Administrator credentials, and Host credentials

• Question 30:

  Which four actions can you perform by using features that are included in WLS management Pack EE? (Choose four.)

  A. manage multiple domains centrally
  B. perform in-depth JVM diagnostics
  C. perform user-session diagnostics
  D. trace transactions across multi-tier environments
  E. perform disaster recovery operations
  F. perform full session replay
  A. manage multiple domains centrally
  B. perform in-depth JVM diagnostics
  E. perform disaster recovery operations