Incorrect answers b the archive process does not

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Unformatted text preview: ency of checkpoints. C: The number of rollback segments does not affect checkpoints. D: The size of rollback segments has nothing to do with checkpoints. Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 328-330 Chapter 7: Managing the Physical Database Structure QUESTION 129: - The Power of Knowing 1Z0-023 Why would a DBA create multiple online redo log members in a single group? A. To distribute I/O. B. To back up the database. C. To protect against a single point of failure. D. To write the second redo log after the first redo log is full. Answer: C Explanation: Answer C is correct. To protect against a single point failure (disk crash, for example) a DBA create multiple online redo log members for each log group. This process is called multiplexing of redo log files. Incorrect Answers: A: Multiplexing redo log files will not help to distribute I/O because Oracle will write into all members of current group. B: Multiplexing of redo log files does not work with backup of th...
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This document was uploaded on 03/08/2014.

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