DB Administration Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

DB Administration Interview Questions

Questions Answers Views Company eMail

I have kept recovery catalog on same target database and taken backup of target DB to disk. deleted the target DB & tried to restore and revoer DB using the backup on disk but it is not possible, how do we restore & recover DB

1885

If CPU is very slow What can u do to speed up?

1 4391

if monday take full backup and tuesday it was cumulative backup and wednesday we taken incremental backup, thursday some disaster happen then what type of recovery and how it will take?

1 3920

when we login sql editor using username and password then it says this error "could not resolve service name" then what can we do at client side.( here thing is tnsnames.ora file is ok till yesterday and worked well, but now it giving error.

1660

How many memory layers are in the shared pool?

3 7571

How do you find out from the RMAN catalog if a particular archive log has been backed-up?

IBM,

2 11174

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?

2446

Define the SGA and: How you would configure SGA for a mid-sized OLTP environment? What is involved in tuning the SGA?

3697

What is the cache hit ratio, what impact does it have on performance of an Oracle database and what is involved in tuning it?

2405

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?

1944

How do you tell what your machine name is and what is its IP address?

4 7096

How would you go about verifying the network name that the local_listener is currently using?

3157

You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?

4383

What view(s) do you use to associate a user's SQLPLUS session with his o/s process?

2482

What is the recommended interval at which to run statspack snapshots, and why?

1 3169

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Un-Answered Questions { DB Administration }

What are the operating modes in which database mirroring runs? : sql server DBA

1106

what is logical system in sap basis

1576

How can you control the amount of free space in your index pages? : sql server DBA

1232

What is the difference between clustered and non-clustered index? : sql server DBA

1023

What are the different ways you can create databases in sql server? : sql server DBA

1077

In which dictionary table or view would you look to determine at which time a snapshot or MVIEW last successfully refreshed?

2641

Which dictionary view(s) would you first look at to understand or get a high-level idea of a given Advanced Replication environment?

1868

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?

2446

Why does Oracle not permit the use of PCTUSED with indexes?

2880

What are the different sql server versions you have worked on? : sql server DBA

963

how can you communicate with operating system files from oracle?

981

How would you extract DDL of a table without using a GUI tool?

2440

how can you initialize log miner?

1085

What is the difference between dropping a database and taking a database offline? : sql server DBA

1013

Does any body has ORACLE Certification Dumps or Materials on 9i DBA, 10G DBA, Internet Application Developer, OCP 8i to 10g DBA Upgrade, Oracle 11i if any body have it, please kindly drop an email to: taruni_2k8@yahoo.com

2060

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