Oracle DBA Interview Questions By B G
1. How many memory layers are in the shared pool?
2. How do you find out from the RMAN catalog if a particular archive log has been backed-up?
3. How can you tell how much space is left on a given file system and how much space each of
the file system’s subdirectories take-up?
4. Define the SGA and：
? How you would configure SGA for a mid-sized OLTP environment?
? What is involved in tuning the SGA?
5. What is the cache hit ratio， what impact does it have on performance of an Oracle database
and what is involved in tuning it?
6. Other than making use of the statspack utility， what would you check when you are monitoring
or running a health check on an Oracle 8i or 9i database?
7. How do you tell what your machine name is and what is its IP address?
8. How would you go about verifying the network name that the local_listener is currently using?
9. You have 4 instances running on the same UNIX box. How can you determine which shared
memory and semaphores are associated with which instance?
10. What view(s) do you use to associate a user’s SQLPLUS session with his o/s process?
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