Friday, January 21, 2011

Top 20 Tibco Rendezvous and EMS Interview questions and answers

Hi Guys, in this part of my Tibco Rendezvous tutorial series I am sharing some Tibco RV interview questions and answers most often asked in any TIBCO messaging interviews. These are based on fundamental TIBCO concepts and also offer some new way of learning TIBCO RV or TIBCO Rendezvous technology. Some of the TIBCO Interview questions I have already discussed in my TIBCO command series.

TIBCO Rendezvous Interview Questions

Here is the list of TIBCO interview question, I am not putting answer for these interview questions right now but will put together in some other post but these questions are really great in terms of any Tibco messaging interview. For better organization and quick access I will divide TIBCO Interview questions on various category e.g. TIBCO Rendezvous Interview questions, TIBCO EMS Interview questions, TIBCO Certified Messaging questions, TIBCO Hawk Interview questions and Miscellaneous TIBCO Interview questions. Please let me know if you want some more categories. Answers of these Tibco Interview questions can be found in different tutorials available in my blog; I will also try to post relevant links here.

This article is in continuation of my interview articles 10 Interview questions on Singleton Pattern in Java , Top 20 FIX Protocol Interview questions and Top 20 Core Java interview questions asked in Investment banks and Top 10 Java Serialization Interview questions




TIBCO Rendezvous or RV Interview Questions

Tibco Interview questionsIn this category all Tibco interview questions are related to Rendezvous and subdivided into different category based on complexity of different Tibco Interview questions and functionality covered on that Tibco Interview questions

Tibco Interview questions based on Fundamental
To answers fundamental Tibco Interview questions and to learn more about RV fundamental please see my posts Fundamentals of Tibco RV messaging. And TIBCO Rendezvous  messaging

1) What do you mean by TIBCO RVD (Rendezvous Daemon)?
2) How TIBCO Rendezvous works?
3) What do you mean by Rendezvous Routing Daemon? Why do you need that?
4) What do you mean by Rendezvous (RVD)? What are its responsibilities?
5) What is the difference between RVD and RVRD?
6) What are the main benefits of using Rendezvous?
7) What is request reply messaging, in which condition we should use request reply messaging.

8) What is difference between request/reply and publish/subscribe?
9) What are Inbox topics?
10) What are advisory messages?

Answer to this Tibco Interview question see here DATALOSS Advisory on Tibco RV

Advanced Tibco Interview questions

1) what is the fundamental difference between working of Tibco RVD and JMS Queue?
2) What will happen if you kill the Rendezvous Daemon (RVD) and your process is running?

2) Can you bind one service to different TIBCO transport in case of RV?
4) Which protocol Rendezvous is based upon?

5) What do you mean by service, daemon and network in Rendezvous?
6) What are the benefits and drawback of using Rendezvous?
7) What do you mean by remote daemon in case of Rendezvous? When do you use remote daemon? What are disadvantage of using Rendezvous remote daemon?

8) What do you mean by Rendezvous (Rendezvous) storm?
9) What do you mean by DATALOSS? What is inbound and outbound data loss?
For this Tibco Interview question see here  DATALOSS Advisory on Rendezvous

10) What is Rendezvous reliability parameter? How does it affect working of Rendezvous?

Tibco Interview questions based on commands

To find our answers about Tibco interview questions related to Tibco commands please check my post Tibco Rendezvous tips and commands

1) How do you find out whether RVD is running or not in both windows machine and Linux machine?
2) How do you find out on which topics your RVD has made subscription?
3) How do you publish message on a topic and how do you receive message from a topic?
4) What will happen if an application tries to create a Rendezvous transport and RVD is not running on that host?

TIBCO Certified Messaging Interview Questions 

To find out answers of below Tibco Interview questions on Tibco Certified messaging and know more about Certified messaging please refer to my post Certified Messaging in Tibco Rendezvous  and Ledger file in Certified Messaging
1) If want to ensure that no message lost by using Rendezvous, how do you achieve it?
2) How does Certified messaging works?

3) What will happen if you delete ledger file while your process is still running using certified transport?
4) What do you mean by transport? Do you make topic as certified or transport as certified?

5) How do you view message form ledger file?
6) What do you mean by pre registration in case of Rendezvous certified messaging?
7) How do you ensure a message will not be lost between two process even if one of them is not up and running?
8) What is ledger file?
9) When should we use file based ledger and when should we use in memory ledger?

TIBCO EMS Interview Questions 

To find answers of below Tibco Interview questions, please refer to my post Difference between Tibco EMS and Tibco RV

1) What is the bus architecture and what is hub spoke architecture?
2) Difference between Rendezvous and EMS?
3) What is the advantage and disadvantage of using EMS?
4) When should you use Rendezvous and when should you prefer EMS?
5) What do you mean by durable topic/queue?


TIBCO Hawk Interview Questions

To find answers for these Tibco Interview questions please see my post Introduction to Tibco Hawk
1) What is Tibco hawk?
2) How does Hawk helps in terms of monitoring application?
3) How does Tibco hawk works?
4) What are main components of  hawk?

Miscellaneous TIBCO Interview Questions 

1) What do you mean by subject based filtering or subject based addressing?
2) You have your GUI application and running on windows machine and server is running on Linux machine? How do you communicate between server and GUI?

3) What are the advantage and disadvantage between TCP and multicast?

JMS TIBCO Interview Questions

1) What do you mean by JMS Selector?
2) How does JMS Selector works?

These all Tibco interview questions I have gathered from different sources, Please contribute any TIBCO interview questions you have been asked and not present in this list.
This list of TIBCO Interview questions are by no means complete and please post/comment any TIBCO interview questions you come across.

To read more about Rendezvous or EMS see my TIBCO Tutorials series

8 comments :

jason said...

Nice interview questions but when are you going to put answers , I have to go for a Tibco interview tommorrow can you please post answer man ?

Anonymous said...

Hi All ,

I am planning to move to Tibco from testing .May i know the demand of tibco in market in USA .Please help me .

chithra venkatasubramanian said...

Hi , Thanks for your tutorial. Its very helpful for beginnners. Can i have the answer for the below 3 questions pls...

You have your GUI application and running on windows machine and server is running on Linux machine? How do you communicate between server and GUI?
What will happen if you kill the Rendezvous Daemon (RVD) and your process is running?
What are disadvantage of using Rendezvous remote daemon?



Anonymous said...

hi all,
Can you please post latest interview questions on tibco Thanks Inadvance

Anonymous said...

Some latest questions asked to me related to Tibco rendezvous in an Interview :

Difference between TCP and UDP protocol?
Which Protocol Tibco RV uses for communication? (TRDP and PGM which is based on UDP)
Difference between TRDP and PGM protocol?
If UDP is not reliable then how does Tibco RV achieves reliable delivery using UDP protocol?

I manage to answer few of them, key is to remember sequence number and re-transmission of messages from publisher to subscribers.

Anonymous said...

What is difference between TRDP and TCP protocol? or How Tibco Rendezvous works? or How does Tibco Rendezvous delivers messages reliably?

Well TRDP is protocol over UDP, which is implemented by rvd ( rendezvous daemon). As opposed to TCP, which is pessimistic protocol and require acknowledgement for every received messages, TRDP is optimistic and only sends NAK, if it doesn't receive any particular messages. This is tracked by unique sequence number. RVD assigns unique sequence number to each outbound messages and also buffer certain number of messages for 60 seconds, to support re-transmission. If other RVD doesn't receives a message, it request for retransmission and this way TRDP gets its reliable delivery. This is much faster than TCP, but obviously less reliable. This is also how Tibco RV works, though it can also use a different proprietary protocol called PGM.

Anonymous said...

2) You have your GUI application and running on windows machine and server is running on Linux machine? How do you communicate between server and GUI?

What is the answer for thos?

Anonymous said...

Difference between Certified messaging and reliable messaging in Tibco?

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