Oracle Apps DBA Interview Questions part 5

30.   Where is database plssql cache stored?
plssql & session cache are stored under $IAS_ORACLE_HOME/ Apache/modplsql/cache directory
31.   How to determine Oracle Apps 11i Version?
select RELEASE_NAME from fnd_product_groups;
You should see output like
RELEASE_NAME
11.5.9 or 11.5.10.2
32.   What is content of dbc file & why is it important?
DBC file is quite important as whenever Java or any other program like forms want to connect to database it uses dbc file. Typical entry in dbc file is
GUEST_USER_PWD
APPS_JDBC_URL
DB_HOST
33.   There are lot of dbc file under $FND_SECURE, How is it determined that which dbc file to use from $FND_SECURE?
This value is determined from profile option "Applications Database ID"
34.   What is RRA/FNDFS?
Report Review Agent (RRA) also referred by executable FNDFS is default text viewer in Oracle Applications 11i for viewing output files & log files.
35.   What is PCP is Oracle Applications 11i?
PCP is acronym for Parallel Concurrent Processing. Usually you have one Concurrent Manager executing your requests but you can configure Concurrent Manager running on two machines. So for some of your requests primary CM Node is on machine1 and secondary CM node on machine2 and for some requests primary CM is on machine2 & secondary CM on machine1.
36.   Why I need two Concurrent Processing Nodes or in what scenarios PCP is used?
If you are running GL month end reports or taxation reports annually these reports might take couple of days. Some of these requests are very resource intensive so you can have one node running long running resource intensive requests while other processing your day to day short running requests. Another scenario is when your requests are very critical and you want high resilience for your Concurrent Processing Node, you can configure PCP. So if node1 goes down you still have CM node available processing your requests.
37.   How to confirm if Report Server is Up & Running?
Report Server is started by executable rwmts60 on concurrent manager Node & this file is under $ORACLE_HOME/bin Execute command on your server like
ps -ef | grep rwmts60
38.   What is difference between ICM, Standard Managers and CRM in Concurrent Manager?
ICM stand for Internal Concurrent Manager, which controls other managers. If it finds other managers down, it checks & tries to restart them. You can say it is an administrator to other concurrent managers. Standard Manager: These are normal managers which performs actions on the requests and does batch or single request processing. CRM is acronym for Conflict Resolution Manager and is used to resolve conflicts between managers & requests. If a request is submitted whose execution is clashing or it is defined not to run while a particular type of request is running then such requests are assigned to CRM for incompatibilities & conflict resolution.
39.   What is use of Apps listener?
Apps Listener usually run on All Oracle Applications 11i Nodes with listener alias as APPS_$SID is mainly used for listening requests for services like FNDFS & FNDSM.
40.   How to start Apps listener?
In Oracle 11i, you have script adalnctl.sh which will start your apps listener. You can also start it by command lsnrctl start APPS_$SID (Replace sid by your Instance SID Name)