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Oracle DBA (Database Administration) Interview Questions
Questions Answers Views Company eMail

How can be determining the size of the log files?

 583

Show one instance when you encountered an error in alert log and you overcome that error. What actions you took to overcome that error.

 573

What will you do if in any condition you do not know how to troubleshoot the error at all and there are no seniors or your co-workers around?

 586

How can you tell if a tablespace has excessive fragmentation?

 599

If a tablespace has a default pctincrease of zero what will this cause (in relationship to the smon process)?

 590

What is a database instance?

 590

Which is the best option used to move database from one server to another serve on same network and why?

 547

What is the most important action a dba must perform after changing the database from noarchivelog to archivelog?

 668

How can you determine the number of sqlnet users logged in to the unix system?

 574

The system administrator tells you that the system has not been rebooted in 6 months, should he be proud of this?

 577

How can you find your id on a system?

 566

What os user should be used for the first part of an oracle installation (on unix)?

 549

The system has a program that always includes the word nocomp in its name, how can you determine the number of processes that are using this program?

 575

You have installed oracle and you are now setting up the actual instance. You have been waiting an hour for the initialization script to finish, what should you check first to determine if there is a problem?

 601

Why are recursive relationships bad? How do you resolve them?

 588

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Un-Answered Questions { Oracle DBA (Database Administration) }

Is it necessary to have database in archive log mode in configuration dataguard , if yes then why?

587

How do you analyze table partition using oracle provided package?

520

If you are not sure what command does a particular unix function what is the best way to determine the command?

565

Which process writes data from data files to database buffer cache?

608

What are the various ingredients of sga?

572

What are elements of administration?

596

What are the main benefits of using spfile over pfile?

641

How do you install statspack?

685

What degree do database administrators need?

544

What skills do you need to be an administrator?

566

What is the difference between sga and pga?

618

If a tablespace has a default pctincrease of zero what will this cause (in relationship to the smon process)?

590

How to uncatalog backup?

567

What is an artificial (derived) primary key?

613

What is da in database?

543

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