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Oracle Application Grid 11g Essentials

Question No: 11

Which statement is true about XpauseTarget in Oracle JRockit JVM?

  1. This option is supported by all type of Garbage collection modes.

  2. This option is only supported by Generational Garbage Collection mode.

  3. This option is only supported by Mark and Sweep Garbage Collection Model.

  4. This option is only supported by Dynamic Garbage Collection Model.

Answer: D

Question No: 12

Identify the feature of WebLogic JMS: If the message destination (5, not available at the moment the sages are being sent, either because of network problems or system failures, then the messages are saved on a local server instance, and are forwarded to the remote destination once it becomes available.

  1. Unit of Work

  2. Store-and-Forward

  3. Unit of Order

  4. Distributed Destinations

Answer: B

Question No: 13

In Real Operations Insight, metrics are sent from the various WebLogic Suite components into Enterprise Manager for and .

  1. Optimization

  2. Visualization

  3. Automation

  4. Customization

Answer: A,B

Explanation: Oracle Fusion Middleware Real Operations Insight provides enhanced visibility across the entire application infrastructure, helping enterprises ensure continuous availability and high performance of applications and services.

Question No: 14

When scaling Coherence from one to two cache servers, it will not show the same scalability as two to four. Why?

  1. Coherence uses a more efficient TCMP algorithm going from two to four cache servers.

  2. When going from one to two cache servers, object backups are copied across servers so work is doubled, but going from two to four is a fixed amount of work.

  3. Near cache is enabled with a larger quorum thus performance is improved.

  4. All of the above.

Answer: B

Question No: 15

This is a special WebLogic Server instance included by the WebLogic Server Domains. It represents a central point from which you configure and manage all resources in the domain.

  1. Managed Server

  2. Web Server

  3. Administration Server

  4. Node Server

Answer: C

Question No: 16

You are an Enterprise Architect in a large IT organization. Your organization has deployed applications on a variety of containers such as WLS, WebSphere, and JBoss.

Why would you consider consolidating on a single type of container (instead of a mix)?

  1. Guarantee of higher application performance and reliability if the transactions are flowing between instances of the same container type.

  2. Easier to build a Shared Services infrastructure that can provide best practices, tools and

    expertise around HA/Management… with a single type of container than a mix of multiple types.

  3. You#39;ll save on hardware costs with a homogeneous environment.

  4. It#39;s a necessary step in our move toward adopting SOA.

Answer: B

Question No: 17

Which two statements are true when a Coherence cluster member is lost?

  1. Remaining members recover by repartitioning the data across the remaining cluster members in parallel with normal request processing.

  2. Some latencies may be experienced due to higher priority of recovery.

  3. In flight operations may be lost.

  4. A system administrator must manually assist recovery of the lost data.

Answer: A,B

Question No: 18

Which two statements are true about Oracle JRockit Mission Control (JRMC)?

  1. JRMC is platform neutral. It supports most JVMs in market.

  2. JRMC is used for Deep visibility and analysis of single JVMs.

  3. JRMC comes with custom in-memory agents and is supported by standard APIs (JVMT1).

  4. JRMC is bundled with the WebLogic Suite and WebLogic Server EE.

    Answer: C,D

    Question No: 19

    Which Coherence caching pattern matches the sequence of events?

    1. Data is requested from the cache.

    2. The requested data does not exist in the cache (cache miss).

    3. The Coherence cache store is used to read data from the back-end persistent data source, and placed in the cache.

    4. Data requested from the cache is returned to the caller.

      1. Read Through

      2. Write Through

      3. Refresh Ahead

      4. Write Behind

Answer: A

Question No: 20

Which two are advantages of using WLS JMS instead of using a third-party JMS Provider (Tibco, Sonic, etc.)?

  1. JMS subsystem of WLS shares same JVM as core WLS application server, so application avoids the overhead of message serialization/de-serialization (necessary when using a 3rd party JMS provider with WLS)

  2. WLS JMS is always faster than 3rd party JMS providers

  3. Unified operations and management tools across Application Server and JMS Provider will help with manageability and diagnostics

  4. WLS JMS more compliant with JMS spec than 3rd party vendors

Answer: A,D

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