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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