TIBCO Middleware Concepts 2

Question 1

In TIBCO EMS, what is the purpose of a 'durable subscriber'?

Accepted Answer

To receive messages even when the subscriber is offline

Answer

A durable subscriber retains a subscription so it receives messages published while it was disconnected.

Question 2

Which TIBCO product is primarily used for real-time event stream processing and complex event processing (CEP)?

Accepted Answer

TIBCO StreamBase

Answer

TIBCO StreamBase is the CEP engine designed for high-throughput, low-latency event stream processing.

Question 3

What does 'guaranteed delivery' mean in the context of TIBCO EMS messaging?

Accepted Answer

Messages are persisted and delivered exactly once even after broker restart

Answer

Guaranteed delivery uses persistent storage so messages survive broker restarts and are delivered exactly once.

Question 4

In a TIBCO middleware architecture, what is the role of a 'message selector'?

Accepted Answer

Filters messages on the consumer side based on header properties

Answer

A message selector is a SQL-like expression evaluated against message headers to filter which messages a consumer receives.

Question 5

Which transport protocol does TIBCO Rendezvous (RV) use by default for reliable multicast messaging?

Accepted Answer

UDP multicast with PGM

Answer

TIBCO RV uses UDP multicast with its own reliability layer (PGM-compatible) for efficient one-to-many delivery.

TIBCO - Assessment Test Practice Test