TIBCO Middleware Concepts 4

Question 1

What is the role of the 'dead letter queue' (DLQ) in TIBCO EMS?

Accepted Answer

It holds messages that could not be delivered after maximum retry attempts

Answer

The DLQ receives messages that failed delivery after the configured redelivery limit is reached, preventing message loss and enabling diagnosis.

Question 2

In TIBCO BusinessWorks, what is the 'JDBC Query' activity used for?

Accepted Answer

Executing a SQL SELECT statement and returning a result set

Answer

The JDBC Query activity executes a parameterized SQL SELECT query against a relational database and maps the results to process variables.

Question 3

Which TIBCO technology implements the WS-* standards for enterprise web services?

Accepted Answer

TIBCO ActiveMatrix BusinessWorks with SOAP/WSDL bindings

Answer

TIBCO ActiveMatrix BusinessWorks supports WS-Security, WS-ReliableMessaging, and WSDL-based SOAP service creation and consumption.

Question 4

What is a 'flow limit' in TIBCO EMS, and why is it important?

Accepted Answer

A threshold that controls maximum unacknowledged messages to prevent consumer overload

Answer

Flow limits control how many unacknowledged messages can be in-flight to a consumer, preventing slow consumers from being overwhelmed.

Question 5

In TIBCO middleware, what does 'request-reply' messaging pattern involve?

Accepted Answer

A requester sends a message and waits for a correlated response on a reply destination

Answer

In request-reply, the sender includes a ReplyTo destination and correlation ID so the responder can send a matched response back.

TIBCO - Assessment Test Practice Test