ACCENTURE1.switch over commands and failover commands?2.oracle installation prerequisites?3.can we change orainvntory location?4.alertlogfile location in rac?5.users are trying to connect to the database and takes much time to connect. what is the reason?6.catalog commands?7.have u applied cpu patches?8.how to check the status of rac instance?9.how to check the status of rac database?10.how to check the status of rac cluster status?---------------------------------------------------------------------------------------------------------SAPIENTBASIC ADMINISTRATION. What is use of root.sh at the end of the installation?. Display How long a user (Top_user) connected to a server along with current session details.. Create a new readonly user?. In which situation we will start the database in STARTUP RESTRICTED.BACKUPS. difference between cumulative and incremental backups with example.. RMAN script to restore the previously backup database by using cron.. what is the use of crosscheck command with suitable example.RAC. what is the location of spfile in RAC?. write command to find the names of the votedisk files.. write the steps to shutdown the crs stack. PERFORMANCE TUNNING. write to command to collect the current stats of the table.. Difference between Rebuild and Rebuild online?. what are the Tunning tools available in Oracle?. Difference between DBfile Sequential and Scattered files?. what is the command to display Execution plan and already used Explained Query?DATAGUARD. How to find the gap in physical standby?. Difference between Physical standby and Logical standby. How to skip the table replication (DDL & DML) on Logical Standby?NETWORKING. What is the command to make the changes to listener effective without restarting listener?. How to verify whether listener is receiving the incoming connections?RDBMS. write the levels of Normalization?. DRAW an ER-Diagram for examination system in an institute----------------------------------------------------------------------------------------------. which utility used to apply the patches?. Datapump parameters added in 11g. Tell me some Sql loader variables. Database POINT IN TIME RECOVERY----------------------------------------------------------------------------------------------Ericcson1. In RMAN how can we check the successful backups and failure backups2. RMAN, while running backups if the archivelog destination full, what will happen to backup and what will u do?3. How to connect to os server. 4. U have 10 dbs among that u need to conect to a particular db. How will u connect to that db.5. How will find the port number in oracle. 6. How to change the port number7. How to find the table size8. How to find the db size9. Redundancy levels in ASM10. what is RAID 011. crosscheck command 12. oracle rdbms installation procedure13. 14.----------------------------------------------------------------------L&T Infotech1. How to check the session details in RAC2. What is OCR file and Voting disk, what it contains.3. How to take the backup of the voting disk4. What is new in 11g R1 RAC.5. How to resolve huge archivelog gap in dataguard6. Explain the protection modes in Dataguard7. we have Server A,Server B Now i want to import a table from Server A to Server B Ans) It is possible through "Network_link" parameter for this we need to create "databaselink"8. Difference between normal exp and expdp9. How many voting disks recommended by oracle in RAC.10. What are the Redundancy levels in ASM and Explain.11. What is RAID 0, RAID 1? What is oracle recommended?12. We lost one table in database and we dont have archivelogs Can we do TSPITR in Production Database?-----------------------------------------------------------------------