[单选] Which of the following will be a consequence of defining the column IDCOL2 in TABLE2 as a foreign key referencing the primary key (IDCOL1) of TABLE1?（）

不论采用什么方法评估在建工程，其基本前提条件是（）。 项目仍然在建设中。 建成后的项目有效益性。 预计项目能够建成。 建成后能够形成生产能力。 An administrator is attempting to recover afilesystem that fails to manually unmount. The fsck command produces the following output: The current volume is: /dev/fslv02 File system is currently mounted. Invalid file system size in the primary superblock. Invalid file system size in the secondary superblock. Primary superblock is corrupt. Secondary superblock is corrupt. fsck: Cannot continue tried to mount Which steps will resolve the problem?（） Reboot the server into maintenance mode and run 'fsck' with the '-p' parameter while the filesystem is mounted。 Reboot the server into maintenance mode and run 'fsck' with the '-y' parameter whilethe filesystem is unmounted。 Force a umount of the filesystem with 'umount -F /dev/fslv02', and then run 'fsck p /dev/fslv02' while the file system is unmounted。 Force a umount of the filesystem by varying off the hosting volume group and then varyon the volume group. This will permit 'fsck -y' to be run against the failing filesystem。 以下关于SVC支持iSCSI的说明中，错误的是：（） 自SVC5.1版本起支持主机用 iSCSI 访问 SVC；。 支持 ipv4 和 ipv6 的地址。 支持 CHAP 的 iSCSI 安全验证方式。 可将 iSCSI 存储加入到虚拟化存储环境。 治疗青光眼首选药为（）。 餐厅的环境设计包括哪几个方面，有哪些要求？ Which of the following will be a consequence of defining the column IDCOL2 in TABLE2 as a foreign key referencing the primary key (IDCOL1) of TABLE1?（）