The storage engine for which the runtime options are always enabled is . . . . . . . .

Solution (By Examveda Team)

This question asks about a specific storage engine in MySQL that always has its runtime options enabled.
Let's break down the options:
Option A: Falcon
Falcon is not a standard MySQL storage engine. So, it's not the right answer.
Option B: FEDERATED
The FEDERATED storage engine allows you to access tables from other MySQL servers. While it has its own settings, it's not the engine where runtime options are always enabled.
Option C: InnoDB
InnoDB is the most common storage engine in MySQL, known for its features like transactional support and row-level locking. InnoDB has runtime options that can be enabled or disabled, making it the correct answer.
Option D: MEMORY
The MEMORY engine stores data in memory, which is fast but can lead to data loss if the server restarts. While it has its own settings, it's not the engine where runtime options are always enabled.
Therefore, the answer is Option C: InnoDB.