Hello..Interview

Question

Hello friends,
I had an interview and was asked with simple questions i suppose..
can u please help me in this:
- what is a Java Web Start?
- In how many ways can we do the monitoring?
- what is cache? use? and how many we have?
- what are usage dependancies?
- How many types of mapping? and when to use which mapping?
- difference between end-to-end and performance monitoring?
Thank you in advance...
Have a nice day..
regards,
Amit.

Answer 1

Hi,
please find here with you the answers for these.
what is a Java Web Start?
-->The main purpose and benefit of Java Web Start is to synchronize the libraries (jar files) between your computer (client) and the XI server. So, if there is a new patch installed on the XI server, Java Web Start will download the effected library files from the server to your computer before IR or ID is started.
In how many ways can we do the monitoring?
-->Either by SXMB_MONI or RWB
Here either you could monito the End- to End flow or Componenet level or Message wise monitoring or cache monitoring.
refer
SAP Network Blog: Monitoring a flow in XI
/people/sergio.locatelli2/blog/2006/10/09/monitoring-a-flow-in-xi
/people/ronen.fox/blog/2007/11/05/monitoring-applications-in-a-complex-xi-driven-landscape
what is cache? use? and how many we have?
-->There are 2 types of caches.....
CPA cache - is your Collaboration profile agreement cache, ie to mean it will contains the cache copy of all objects created during configuration time (ID).CPA (Collaboration profile agreement )Cache-mainly for J2EE engine/Adapter engine.
Refreshing the cache means, back end connections are made during the next request and the cache is validated for any new or any deleted items. Before contacting the back ends, expired items are removed from the cache.
Cache monitoring
The Runtime Workbench provides access to all these monitoring activities. You can also run component monitoring by using a special CCMS Alert Monitor, which monitors the individual XI components.
http://help.sap.com/saphelp_nw04/helpdata/en/45/d169186a29570ae10000000a114a6b/frameset.htm
How To…Handle Caches in SAP XI 3.0
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1a69ea11-0d01-0010-fa80-b47a79301290
SXI_CACHE - Ripped Off
/people/sravya.talanki2/blog/2005/12/02/sxicache--ripped-off
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1a69ea11-0d01-0010-fa80-b47a79301290
/people/sravya.talanki2/blog/2006/12/19/unable-to-read-integrationdirectoryhmiundocumented-bug-sxicache
About Cache Monitoring-
http://help.sap.com/saphelp_nw2004s/helpdata/en/92/2fd93f130f9115e10000000a155106/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1a69ea11-0d01-0010-fa80-b47a79301290
what are usage dependancies?
--> Usage dependancy is used to create if you wish to use the object of one SWCV in another.
You defined the SCVs on which the new SCV is based, and the dependencies for the central build.
It require to create dependencies in SLD. Software catalogue --> Software components.
Inside the software component you will see a link for Usage dependencies
have a look at my weblog:
/people/michal.krawczyk2/blog/2005/08/26/xi-are-you-independentfrom-your-dependencies
http://help.sap.com/saphelp_nw04s/helpdata/en/43/e95ac0a0302d56e10000000a422035/frameset.htm
How many types of mapping? and when to use which mapping?
There following types of mapping
1.Graphical Mapping
2. Java Mapping (SAX / DOM)
3. XSLT Mapping
4. ABAP Mapping
Mapping functionality in XI
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9202d890-0201-0010-1588-adb5e89a6638
SAP Network Blog: Mapping Enhancements in SAP NetWeaver Process Integration (PI) 7.1
/people/jin.shin/blog/2008/01/11/sap-pi-71-mapping-enhancements-series-mapping-enhancements-demo
see here all the details under standard functions.
http://help.sap.com/saphelp_nw04/helpdata/en/43/c4cdfc334824478090739c04c4a249/content.htm
IfWithoutElse and CreateIf Node Function of Graphical Mapping
/people/stefan.grube/blog/2006/01/09/the-use-of-suppress-in-the-xi-30-graphical-mapping-tool
Also check these
Message Mapping Simplified (good examples of mapping function)
/people/sravya.talanki2/blog/2005/08/16/message-mapping-simplified--part-i
/people/sravya.talanki2/blog/2005/12/08/message-mapping-simplified-150-part-ii
Introduction to Context Handling in Message Mapping
/people/riyaz.sayyad/blog/2006/04/23/introduction-to-context-handling-in-message-mapping
New functions in the Graphical Mapping Tool SP13
/people/stefan.grube/blog/2005/12/29/new-functions-in-the-graphical-mapping-tool-xi-30-sp13
difference between end-to-end and performance monitoring?
--> End to End Monitoring will give you the whole flow of Mesasge from sedner system to receiver systems at verious stages in XI.
Performacne monitoring will analyse the utilization of XI resources and the consumption to process the message
Thanks
Swarup