Incorrect answers b there is no direct load update to

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Unformatted text preview: and direct path loading with archiving using NOLOGGING mode. Incorrect Answers: B: There is no direct load UPDATE to NOLOGGING mode in Oracle. E: There is no NOLOGGING initialization parameter in Oracle. Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 873-876. Chapter 18: Tuning Memory and Operating System Use QUESTION 76: The alert log file for a database instance indicates that the checkpoints are frequently Actualtests.com - The Power of Knowing 1Z0-024 failing to complete. Which action would be a remedy in this situation? A. Increase the number of archiver (ARCn) processes. B. Increasing the number of members for all log groups. C. Increasing the number of log writer (LGWR) processes. D. Increasing the number of database writer DBWn) processes. Answer: D Explanation: It's possible that sometimes the LGWR process must wait because DBWn has not compressed checkpointing a file. To avoid this situation you need to increase the number of database writer (DBWn) processes. Incorrect Answers: A: You may also find that contention exists between your ARCH and LGWR processes during checkpoints at log switches. To resolve this performance problem, you must do the following. Place your redo log files on separate disk resources so that ARCH can copy the recently filled online log to the archive destination. Also, place your archive destination on yet another separate disk resource, away from all the online redo logs. But question says nothing about log switches, so you can consider this answer as incorrect, because other answer is correct. B: The number of members for all log groups has no influence on the frequency of checkpoints. C: By increasing the number of log writer (LGWR) processes you will not fix problem, because it is related with database writer processes: they don't have enough time to write all dirty buffers into datafiles. Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 902. Chapter 19: Tuning Disk utilization QUESTION 77: What are fr...
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This document was uploaded on 03/08/2014.

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