The default case sensitivity of the database and table names depends on . . . . . . . .

Solution(By Examveda Team)

Server SQL mode: This is the correct option. The default case sensitivity of database and table names in MySQL is influenced by the SQL mode set for the server. The SQL mode determines various aspects of MySQL's behavior, including how it handles identifier case sensitivity. In certain SQL modes, such as ANSI_QUOTES, database and table names are treated as case-sensitive, while in others, such as IGNORE_SPACE, they are treated as case-insensitive.
Operating system of machine: This option is incorrect. The default case sensitivity of database and table names in MySQL is not determined by the operating system of the machine where MySQL is running. MySQL's behavior regarding case sensitivity is primarily controlled by server settings and SQL mode.
Does not depend on anything: This option is incorrect. The default case sensitivity of database and table names in MySQL does depend on certain factors, particularly the server SQL mode.
SQL server: This option is incorrect. The default case sensitivity of database and table names in MySQL is not determined by an external SQL server. It is determined by MySQL's own configuration and SQL mode settings.

Therefore, the correct answer is Option A: Server SQL mode, as it accurately reflects that the default case sensitivity of database and table names in MySQL is influenced by the server's SQL mode setting.