问题：
[单选] Which of the following statements is mot correct about mirroring?（）
A . Mirroring, with the write-verify option turned on, can be used to increase performance.
B . Mirroring is a better choice that disk-striping, for large sequential-access file system when one is looking for performance.
C . Mirroring, with a parallel-scheduling policy, may improve I/O read-operation performance.
D . Mirroring, with maximum inter-disk allocation policy, is used to enhance availability.
（）是调查者在提出问题的同时，还将问题的一切可能答案或几种主要可能答案全部列出，由被调查者从中选出一个或多个答案作为自己的回答，而不作答案以外的回答。 指导性问题。 封闭式问题。 开放式问题。 实质性问题。
Which statement about recovering from the loss of a redo log group is true?（） If the lost redo log group is ACTIVE, you should first attempt to clear the log file.。 If the lost redo log group is CURRENT, you must clear the log file.。 If the lost redo log group is ACTIVE, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.。 If the lost redo log group is CURRENT, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.。
Given a new implementation， which of the following procedures should be used to determine a default gateway’s IP address？（） The address will always end in 255.。 The address will always be the first interface’s IP address。 The address will always be the network with a 1 as the final octet.。 It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP addre。
Company.com complains that an outage is required when adding a new filesystem to cluster. The System management function of HACMP （C-SPOC） functions in which manner when adding filesystems to a cluster？（） Adds to all nodes with the cluster running.。 Adds to all nodes with the cluster stopped.。 Adds with the cluster running，uses "Lazy Update" to perform the logical volume synchronization.。 Adds to all nodes with the cluster running but requires the volume groups to be exported andimported after.。
在意外伤害残疾保险中，被保险人遭受合同约定的意外事故而残疾时，其获赔金额为（）。 保险金额。 保险金额乘以残疾比例。 实际治疗费用。 实际治疗费用乘以残疾比例。
Which of the following statements is mot correct about mirroring?（）
