多项选择题 You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns. Which two conditions must be true?（）

单项选择题 You are attempting to secure a MySQL server by using SSL encryption. On starting MySQL, you get this error: 130123 10:38:02 [ERROR] mysqld: unknown option —ssl What is the cause of the error?（）

多项选择题 You examine the output of SHOW GLOBAL STATUS and notice that the value of Created_tmp_disk_tables is consistently increasing. Which two variables would likely fix this issue?（）