MySQL8.0 OCP最新版1Z0-908认证考试题库整理-004

原题

Choose two.

User `fwuser`@`localhost` is registered with the MySQL Enterprise Firewall and has been granted

privileges for the SAKILA database.

Examine these commands that you executed and the results:

mysql> SELECT MODE FROM INFORMATION_SCHEMA.MYSQL_FIREWALL_USERS

WHERE USERHOST = 'fwuser@localhost' ;

 

mysql> SELECT RULE FROM

INFORMATION_SCHEMA.MYSQL_FIREWALL_WHITELIST

WHERE USERHOST = 'fwuser@localhost';

 

You then execute this command:

mysql> CALL mysql.sp_set_firewall_mode('fwuser@localhost' , 'RESET') ;

Which two are true?

A) The fwuser@localhost account is removed from the mysql.user table.

B) The information_schema.MYSQL_FIREWALL_WHITELIST table is truncated.

C) The whitelist of the fwuser@localhost account is truncated.

D) The mysql.firewall_users table is truncated.

E) The firewall resets all options to default values.

F) The fwuser@localhost account mode is set to DETECTING.

G) The fwuser@localhost account mode is set to OFF.

 

解析

Answer：CG

When a profile is assigned any of the preceding mode values, the firewall stores the mode in the profile. Firewall mode-setting

operations also permit a mode value of RESET , but this value is not stored: setting a profile to RESET mode causes the firewall to

delete all rules for the profile and set its mode to OFF .

RESET 概要文件设置为 RESET 模式会导致防火墙删除概要文件的所有规则并将其模式设置为 OFF 。

设置为 RESET 时，除了关闭 Firewall 保护，同时也会将该账号之前训练学习的白名单全部清空，这样下次再想采用

Firewall 保护就需要重头开始了，除非再也不用了，否则不建议这么做。

https://dev.mysql.com/doc/refman/8.0/en/firewall-usage.html

b 选项指定的表是对的，但其中保存了全部的 profile 。