What are the responsibilities of a Database Administrator ?

What are the roles and user accounts created automatically with the database ?

What are the database administrators utilities avaliable ?

What are the minimum parameters should exist in the parameter file (init.ora) ?

What is a trace file and how is it created ?

What are roles ? How can we implement roles ?

What are the steps to switch a database's archiving mode between NO ARCHIVELOG and ARCHIVELOG mode ?

How can you enable automatic archiving ?

How can we specify the Archived log file name format and destination ?

What is the use of ANALYZE command ?

How can we reduce the network traffic ?

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What is snapshots ?

What are the various type of snapshots ?

Differentiate simple and complex, snapshots ?

What dynamic data replication ?