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Oracle Apps DBA Online Assessment Test

Topics Covered

  • Data Modeling - OLTP
  • Troubleshooting issues in Production / Development Environments
  • PL SQL - Joins Views Indexes and Sequences
  • Patching Cloning and System Admin
  • Troubleshooting Database issues
  • Queries and Subqueries
  • Query Optimization
  • Performance Monitoring and Tuning
  • Migration and Upgrading Database
  • Oracle - Backup and Recovery
  • Real Application Cluster (RAC)
  • Oracle - Monitoring using Enterprise Manager
  • Oracle Grid
  • Error/Exception Handling
  • Logging

Useful for hiring

  • Oracle Apps DBA Expert
  • Oracle Apps DBA - Sr. Consultant
  • Oracle Apps DBA
  • Senior Oracle DBA
  • Oracle Applications Administrator

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Question

Why sites that run with too few and too small redo logs doesn't perform well?

Answer
    • it cause system checkpoints to continuously put a high load on the buffer cache and I/O system

    • archive process are not stable

    • database has to wait for archive processes

    • All of the mentioned

Question

While troubleshooting your application you find that your database has encountered a large number of invalid objects, how will you find them using SQLPLUS query?

Answer
    • select count(*) from dba_objects where status like 'INVALID';

    • find count(*) from dba_objects where status like 'INVALID';

    • find count(*) from oracle_dba_objects where status like 'ERROR';

    • select count(*) from oracle_dba_objects where status like 'ERROR';

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