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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: Actualtests.com - The Power of Knowing 1Z0-023
Why would a DBA create multiple online redo log members in a
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 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.
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.
- Fall '09