TIBCO EMS INTERVIEW QUESTIONS AND ANSWERS PDF

Question 8. However, we recommend that application programs use smaller messages, since messages approaching this maximum size will strain the performance limits of most current hardware and operating system platforms. The message is persisted on disk by the server. This delivery mode ensures delivery of messages to the destination on the server in almost all circumstances.

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Question 8. However, we recommend that application programs use smaller messages, since messages approaching this maximum size will strain the performance limits of most current hardware and operating system platforms. The message is persisted on disk by the server. This delivery mode ensures delivery of messages to the destination on the server in almost all circumstances. If authorization is disabled on the server, the server does not send a confirmation to the message producer.

If authorization is enabled on the server, the default condition is for the producer to wait for the server to reply with a confirmation in the same manner as when using PERSISTENT mode.

Reliable mode decreases the volume of message traffic, allowing higher message rates, which is useful for messages containing time-dependent data, such as stock price quotations. Question Answer : No. Persistent messages published to a topic are written to disk only if that topic has at least one durable subscriber or one subscriber with a fault-tolerant connection to the EMS server.

In the absence of a durable subscriber or subscriber with a fault-tolerant connection, there are no subscribers that need messages resent in the event of a server failure. In this case, the server does not needlessly save persistent messages.

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TIBCO Top 10 Interview Questions And Answers

Question Answer : You can save the excel file as. Answer : Expression used to evaluate whether the incoming message is appropriate for this process. This expression is specified in XPath, and only data from the incoming event is available for use in this XPath expression. Answer : The amount of time a message will wait in milliseconds if it is received before this task is reached in the process. If the event timeout expires, an error is logged and the event is discarded. If no value is specified in this field, the message waits indefinitely.

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Critical section is used to sync process instances so that only once process instance executes the grouped activities at any given time. Any concurrently running process instances that contain a corresponding critical section group wait until the process instance that is currently executing the critical section group completes. Particularly used for controlling access to shared variables. Critical section is one of the group actions. Others are iterating, repeat until true, repeat on error until true, while true, pick first and transaction. If we select critical section as the group, then we get two options.

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