[单选] Company.com has encountered a problem on the HMC， which requires access to the root shell on the HMC. Which of the following is necessary to access the root userid on the HMC？（）

You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table？（）  You must enable the block change tracking feature.。  You must have enable the flashback feature.。  You must use the OMF in your database.。  You must define the tablespace of the SCOTT.EMP table for automatic segment space management.。 消毒 Consider the MySQL Enterprise Audit plugin, You add the following lines to the my.cnf configuration tile: [mysqld] Plugin-load=audit_log.so Audit-log=FORCE_PLUS_PERMANENT You attempt to start up the MySQL service and notice that it fails to start. Which two statements would explain why the service did not start?（） FORCE_PLUS_PERMANENT is not valid for the audit-log option。 The audit_log.so library does not exist。 The audit_log.so library is in a location that is different from that defined by the plugin_dir option。 The audit plugin must be loaded dynamically by using the INSTALL PLUGIN command。 The audit log file does not exist in which to write audit events。 The audit_log.so library is not an executable file。 Which of the following are benefits of the IBM Sizing Guide？ （） Available worldwide。 Up-to-date hardware selection。 Wide range of support at no cost。 All of the above。 对护扳长度大于或等于750mm的对开三通（对开四通）进行纵向直焊缝的焊接时，每道焊缝应至少（）名焊工同时施焊。 2。 3。 4。 1。 Company.com has encountered a problem on the HMC， which requires access to the root shell on the HMC. Which of the following is necessary to access the root userid on the HMC？（）