人愚见：使用通用模板创建数据库，块尺寸为指定尺寸不能修改。
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题库：053
37、install
37.During the installation of Oracle Database 11g, you do not set ORACLE_BASE explicitly. You selected the option to create a database as part of the installation. How would this environment variable setting affect the installation?
A. The installation terminates with an error.
B. The installation proceeds with the default value without warnings and errors.
C. The installation proceeds with the default value but it would not be an OFA-compliant database.
D. The installation proceeds with the default value but a message would be generated in the alert log file.
Answer: D
个人愚见：没有设置根目录不影响安装进行，会选择默认oracle目录，但此信息会出现在告警日志中提示你对其进行设置。
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