A DBA notices a decline in query performance in a DB2 database. What steps can they take using the Runstats and Reorg utilities to improve performance?

Analyzing query execution plans helps identify areas where statistics are outdated or missing, which can lead to poor query performance. Running Runstats updates these statistics, providing the query optimizer with accurate information for generating efficient execution plans. Reorganizing the database using the Reorg utility helps to defragment tables and indexes, improving data locality and access efficiency, thus further enhancing query performance. Adjusting buffer pool sizes and memory configurations may optimize memory usage but may not directly address the root cause of performance degradation related to outdated statistics or fragmented data. Disabling logging for tables and indexes is not a recommended practice as it compromises data integrity and recoverability.