Since the real-time application uses a database that is located on a solid-state drive, Arthur should use a deadline I/O scheduler.
An I/O scheduler is an abbreviation for input-output scheduler and it can be defined as a technique which is used by the operating system (OS) of a computer to decide the particular order that input-output (I/O) operations are submitted to storage volumes such as solid-state drives.
In this scenario, Arthur should use a deadline I/O scheduler because his real-time application uses a database that is located on a solid-state drive.
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