TIBCO Latest Interview Questions with Answers by Garuda Trainings

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Tibco
inTerview QuesTions

1.What is TIBCO Certified Messaging?
TIBCO certified messaging is an approach to guarantee delivery of every message
from sender to its intended recipient. TIBCO certified messaging works on the
principle of registration and acknowledgement.

2.What is functionality of TIBCO RVD
(Rendezvous Daemon)?
TIBCO RVD is a background process that runs automatically to support all RV
messaging.

3.What is the difference between TIBCO RV
and TIBCO EMS?
Below are some major differences between TIBCO RV and TIBCO EMS:
1.TIBCO RV is based on TRDP/PGM Protocol while TIBCO EMS is based on
JMS protocol.
2.TIBCO RV is based on dynamic subject based messaging while TIBCO EMS
is based on static queues and topic based messaging.
3.In TIBCO RV, RVD Runs on every machine and hence it doesn’t have single
point of failure. In case of EMS, EMS server is single point of failure.
4.TIBCO RV works on Bus model while TIBCO EMS works on Hub and Spoke
model

4.What are TIBCO Ledger files and why they
are important?
TIBCO Ledger files are used to store messages in case of RV certified messaging.
Ledger files are important as they ensure delivery of each and every message to
intended recipient in certified RV communication model in TIBCO.

5.What is difference between in memory
ledger and file ledger in TIBCO?
Programs that require certification only for the duration of the program process can
choose a process-based ledger. Once the process terminates the ledger file is no longer
available.
Programs that require certification that transcends process termination and program
restart can choose a file-based ledger.
Therefore, a file-based ledger preserves certified delivery information beyond transport
invalidation, or process termination and restart. A memory/process-based ledger does
not possess these characteristics.

6.What are the three types of RV messaging
interactions?
•Publish/Subscribe interaction.
•Request/Reply Interactions.
•Multicast Request/Reply interactions.

7.What is purpose of Subjects in TIBCO RV
communication?
In TIBCO Rendezvous, publish subscriber mechanism of messages works on the
basis of subjects. Messages are published on specific subjects which are then
subscribed by other processes on the same subject.

8.When we should use Reliable RV
messaging and certified messaging?
Certified RV messaging should be used for critical messaging where delivery of each
and every message is very important. Certified message delivery protocols offer
stronger assurances of delivery, along with tighter control, greater flexibility and fine-
grained reporting.
Reliable RV messaging is preferred when message sending is urgent but not critical.

9.What is meant by service and daemon in
Rendezvous?
TIBCO RV Service is the UDP Port number on which Rendezvous messages are
sent.
Daemon is the port number on which communication takes place between RVD
and application.

10.What is RV Storm?
TIBCO RV Storm is a situation in which TIBCO Rendezvous publisher bombards
network with publishing so many messages and exhaust all network bandwidth of
WAN links resulting in complete breakdown of network lines and communication.

11.What are the modes of TIBCO BW
Installations ?
GUI mode
Console mode
Silent mode

12.If you have installed a particular version of
TIBCO software e.g. TIBCO BW X.Y.Z,
What are X, Y and Z number stands for?
Integration can be at different application layers:
X:Patch
Y:Major
Z:Minor

13.What is the role of TRA?
TRA stands for TIBCO Runtime Agent.
The TRA has two main functions:
Supplies an agent that is running in the background on each machine.
•The agent is responsible for starting and stopping processes that run on a
machine according to the deployment information.
•The agent monitors the machine. That information is then visible via TIBCO
Administrator.
•Supplies the run-time environment, that is, all shared libraries including third-party
libraries

14.What is vcrepo.dat?
TIBCO Designer creates a file named vcrepo.dat in the project root directory when
you first save the project. This file is used to store properties such as display name,
TIBCO Rendezvous encoding, and description. This file can be used for
identification in place of the project root directory and can be used as the repository
locator string (repoUrl).

15.What are the TIBCO BW activities that
can
participate in transactions?
Not all TIBCO Business Works activities can participate in a transaction. Only the
following types of activities have transactional capabilities:
•JDBC activities
•JMS activities
•ActiveEnterprise Adapter activities that use JMS transports
•EJB activities
•TIBCO iProcess BusinessWorks Connector activities

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TIBCO Latest Interview Questions with Answers by Garuda Trainings

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