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DB2 Database Maintenance Quiz

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Questions and Answers

What is the purpose of the RUNSTATS command in DB2?

To perform database backups
To create new tables and indexes
To gather statistics about tables and indexes (correct)
To check for potential reorganization

What type of information does RUNSTATS gather in DB2?

Number of rows, distribution of values, and table size (correct)
Index creation timestamps
Database backup history
User access logs

What is the purpose of the REORGCHK command in DB2?

To gather statistics about tables and indexes
To create new tables and indexes
To perform database restores
To check and analyze tables and indexes for potential reorganization (correct)

How does REORGCHK help enhance database performance in DB2?

By improving data layout and access patterns (B) Signup and view all the answers

What is the basic syntax for the RUNSTATS command in DB2?

RUNSTATS ON TABLE (D) Signup and view all the answers

Which method is used to rebuild a database from backups and apply logs to reach a desired recovery point in DB2?

Restore and Recover (B) Signup and view all the answers

What does circular logging in DB2 limit beyond active transactions?

Recovery options (C) Signup and view all the answers

What does logging in DB2 support by capturing every modification for data integrity and consistency?

Database replication (D) Signup and view all the answers

Which recovery method in DB2 involves automatic recovery after an unexpected shutdown or crash using log files?

Crash Recovery (C) Signup and view all the answers

What does rollforward recovery in DB2 achieve after a backup?

Restoring the database to a specific point in time (D) Signup and view all the answers

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