【单选题】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
【单选题】You are trying to bring up a new Testking location onto your existing frame relay network. The new location is using an Adtran router and you are having difficulties getting the site to connect via fr...
【简答题】In a network, one computer is designated as the server, and the others are s. The server is connected to an external router, which the s are also connected to. Any device that is connected...