TIBCO Messaging 4

Question 1

Which TIBCO EMS configuration property controls the maximum number of messages that can be held in a queue before new messages are rejected?

Accepted Answer

max.msgs

Answer

The 'max.msgs' property sets the maximum message count for a queue or topic; when reached, new messages are handled per the overflow policy.

Question 2

What is TIBCO EMS 'message bridging' used for?

Accepted Answer

Forwarding messages from one destination to another, even across different EMS servers

Answer

Message bridging routes messages from a source destination to one or more target destinations, enabling cross-server or cross-destination flows.

Question 3

In TIBCO Rendezvous, what transport type uses multicast UDP for efficient one-to-many message delivery?

Accepted Answer

PGM (Pragmatic General Multicast) transport

Answer

TIBCO RV supports PGM multicast transport for high-throughput, low-latency one-to-many scenarios with optional reliability.

Question 4

When TIBCO EMS is deployed in a fault-tolerant (FT) pair, which server handles client connections during normal operation?

Accepted Answer

The primary (active) server handles all connections; the secondary is standby

Answer

In FT mode, the primary (active) server handles all client connections while the secondary (standby) replicates state and waits for failover.

Question 5

What is the purpose of 'message selectors' in TIBCO EMS when used with topics?

Accepted Answer

They allow subscribers to receive only messages whose header properties match a SQL-92 expression

Answer

Message selectors filter topic messages on the broker using SQL-92 expressions against message properties, reducing unnecessary network delivery.

TIBCO - Assessment Test Practice Test