Red Hat JBoss Enterprise Application Platform Administration I

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Quiz: Deploying an HA Singleton Applications

Deploying an HA Singleton Applications

Choose the correct answer to the following questions:


  1. 1.

    Which file makes a Jakarta EE deployment into a Red Hat JBoss Enterprise Application Platform (JBoss EAP) singleton application? (Choose one.)

    A

    /META-INF/cluster-singleton.xml

    B

    /META-INF/singleton-deployment.xml

    C

    /META-INF/singleton.xml

    D

    /META-INF/singleton-app.xml

    E

    /META-INF/jboss-deployment.xml

  2. 2.

    Which of the following behaviors can be part of a clustered singleton election policy? (Choose three.)

    A

    Pick a random server as the primary.

    B

    Pick a specific server to be the primary.

    C

    Pick the newest running server as the primary.

    D

    Pick the oldest running server as the primary.

    E

    Pick the server with higher available CPU as the primary.

  3. 3.

    Which of these use cases can you implement by using a singleton deployment? (Choose two.)

    A

    Running an application only in the cluster member with a bigger and free JVM heap memory.

    B

    Running an application in a single cluster member to avoid database deadlock issues.

    C

    Running an application only in the cluster member with a specific hardware accelerator card.

    D

    Running an application only in the cluster member with lower network latency to an external back-end server.

    E

    Running an application in a single cluster member to prevent multiple concurrent writes to the same shared file.

  4. 4.

    A cluster is expected to have between 7 and 9 active members. Which would be the minimum partition size for a singleton master election policy in this cluster? (Choose one.)

    A

    Three

    B

    Four

    C

    Five

    D

    Six

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