试题详情
- 单项选择题 An employee cannot access the company database. You check the connection variables:
What is a valid explanation for why one of the users is unable to connect to the database?（） A、Bob has max_user_connections set to zero, which blocks all his connections
B、Joe has exceeded the max_user_connections global limit
C、All users are blocked because max_user_connections is accumulated over the host account information
D、Kay is already connected elsewhere and attempting to log in again
E、Connect_timeout is too small to allow a connection to occur
- D
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