Oracle Oracle Certifications 1Z0-468 Questions & Answers

• Question 21:

  What could cause an AddTargetUser operation to fall with a 401 or a 403 error?

  A. Virtual Assembly Builder Deployer application is down.

  B. The user whose credentials were used to connect to Virtual Assembly Deployer has not been granted the Cloud Admin role.

  C. A connection between Virtual Assembly Builder Deployer and oracle VM Manager resource pool has not been configured.

  D. The Oracle VM Manager Admin user, whose credentials were used in the createTarget operation, has not been granted the Application Admin role.

  Correct Answer: B

• Question 22:

  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

  Correct Answer: AD

  http://www.oracle.com/technetwork/middleware/coherence/learnmore/oracle-coherence- 12c-deployment3049521.pdf

• Question 23:

  Which three packages are available in the JRockit VM? (Choose three.)

  A. java.io.*

  B. java.util.*

  C. java.swing.*

  D. java.sql.*

  E. java.awt.*

  Correct Answer: ABE

• Question 24:

  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?

  A. Configure Elastic Data on your clients with a near cache.

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

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

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

  Correct Answer: C

• Question 25:

  What are the three business drivers for cloud computing? (Choose three.)

  A. better resource utilization

  B. enterprise agility

  C. higher customer support quality

  D. ease of administration

  E. elastic scalability

  Correct Answer: ADE

• Question 26:

  Identify three situations where Coherence is used (Choose three.)

  A. to scale the amount of data accessed on the application or middleware tier

  B. to offload shared services or databases on repeated reads

  C. to accelerate complex RDBMS joins by storing data in memory

  D. to reduce database load by batching and coalescing writes

  E. to perform map-reduce aggregations of unstructured data

  Correct Answer: BDE

• Question 27:

  Your application is configured to use Service Guardian with default settings to protect against stuck service threads. The application runs a set of EntryProcessors to perform various types of calculations. These calculations can take a few milliseconds, but occasionally take up to 30 minutes to process.

  Which statement is true?

  A. The Service Guardian willprotect all of the applications EntryProcessor processes withoutdetecting any as stuck.

  B. The Service Guardian must be disabled for these longer EntryProcessors.

  C. The Service Guardian does not protect threads running user code like EntryProcessors.

  D. The EntryProcessor must issue manual heartbeats to the Service Guardian or risk being killed.

  Correct Answer: B

• Question 28:

  What is the primary purpose of the Middleware Diagnostics Advisor (MDA) included in WLS Management Pack EE?

  A. to automate the SQL tuning process by comprehensively exploring all the possible ways of tuning a SQL statement

  B. to facilitate proactive performance and availability management by auto-finding problems and suggesting solutions

  C. to find configuration problems by comparing WLS configuration to a Gold Image configuration

  D. to provide comprehensive advice on how to optimize schema design in order to maximize application performance

  E. to analyze the EM configuration and suggest configuration changes that will extend the stability of EM

  Correct Answer: B

  Reduce problem resolution time through middleware diagnostics advisor which provides "root cause" findings in context of the most relevant configuration parameters and offers suggestions for each finding.

• Question 29:

  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.

  Correct Answer: BD

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

• Question 30:

  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

  Correct Answer: BCDE