Question: 7
You are setting up a new installation of MySQL Server 5.7 (a GA release.) You have used a ZIP or TAR package to ensure that the mysqld binary, along with its support files, such as plug-ins and error messages, now exist on the host. Assume that the default datadir exists on the host. You installed the binary in the default location (the default --basedir value) for your operating system. Which step should you perform before defining your own databases and database tables? A. Execute a command with a minimal form of: mysqld --initialize B. Register mysqld as a service that will start automatically on this host machine. C. Create a configuration file containing default-storage-engine=InnoDB. D. Set an exception in the host machine’s firewall to allow external users to talk to mysqld. E. Create additional login accounts (so that everyone does not need to login as root) and assign them appropriate privileges.复制
答案：A
解析：使用tar包或zip包安装数据，由于是直接解压缩后使用，必须先执行初始化操作，否则无法启动数据库实例
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