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  1. Which system variable enables mysqld to keep more tables open simultaneously?
    1. max_connect
    2. delayed_queue_size
    3. max_allowed_packet
    4. table_cache
    5. None of these
Correct Option: D

The ‘table_cache’ stores the size of the table cache. Increasing the value enables ‘mysqld’ to keep more tables open simultaneously by reducing the number of file open and close operations.


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