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Messaging Flashcards

7 cards from real TIBCO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What does the TIBCO EMS 'DELIVERED' delivery mode guarantee that 'NON_PERSISTENT' does not?

    Answer: Message survival across broker restarts

    PERSISTENT (DELIVERED) delivery mode writes messages to disk so they survive broker restarts, while NON_PERSISTENT keeps them only in memory.

  2. In TIBCO EMS, a message with a higher priority value compared to other messages in the same queue will be:

    Answer: Delivered before lower-priority messages

    EMS delivers higher-priority messages ahead of lower-priority ones; priority ranges from 0 (lowest) to 9 (highest).

  3. Which TIBCO Rendezvous daemon is responsible for reliable (certified) message delivery on a local network?

    Answer: RVCM

    RVCM (Rendezvous Certified Messaging) daemon manages certified delivery, ensuring each message is acknowledged by all registered listeners.

  4. What is the effect of setting 'msg.setJMSExpiration()' on a TIBCO EMS message?

    Answer: The message is automatically deleted from the server after the specified time-to-live elapses

    JMSExpiration sets the time-to-live; once expired, the broker discards the message without delivering it.

  5. In TIBCO BusinessWorks, which palette activity is used to publish a message to a TIBCO EMS topic?

    Answer: JMS Topic Publisher

    The 'JMS Topic Publisher' activity in the JMS palette sends messages to an EMS topic destination.

  6. What does the 'exclusive consumer' feature in TIBCO EMS queues ensure?

    Answer: Only one active consumer receives messages, even if multiple consumers are connected

    An exclusive consumer ensures ordered processing by allowing only one consumer to receive messages at a time from a queue.

  7. In TIBCO EMS, what is the Dead Message Queue (DMQ) used for?

    Answer: Capturing messages that could not be delivered due to expiration or delivery failures

    The DMQ receives messages that expired, exceeded their redelivery limit, or could not be routed, allowing inspection and reprocessing.

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