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Which dba certification is best?
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When should you increase copy latches?
What exactly does a dba do?
You look at the dba_rollback_segs view and see that there is a large number of shrinks and they are of relatively small size, is this a problem? How can it be fixed if it is a problem?
using hot backup without being in archive log mode, can you recover in the event of a failure? Why or why not?
Describe hit ratio as it pertains to the database buffers. What is the difference between instantaneous and cumulative hit ratio and which should be used for tuning?
When using oracle export/import what character set concerns might come up? How do you handle them?
What is a production dba?
What is the difference between truncate and delete? Can we rollback both? How would a full table scan behave after?
How many types of database software are there?
What is dump destination? What are bdump, cdump and udump?
What kinds of responsibilities does a dba have in a database environment?
How can you find dead processes?
Oracle General 
