COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

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Where are POST routines stored?

RAM
SSD
HDD
BIOS

The correct answer is: BIOS

POST routines, which stand for Power-On Self-Test routines, are stored in the BIOS. The BIOS is firmware that initializes and tests the system hardware components during the startup process before loading the operating system. During POST, the BIOS conducts several checks on the hardware, such as the CPU, memory, and storage devices, to ensure they are functioning correctly. Since the BIOS is a type of non-volatile memory, it retains the POST routines even when the computer is powered off. This is crucial for ensuring that the testing and initialization of hardware occur every time the computer boots up. Understanding that POST routines are specifically part of the BIOS firmware highlights their essential role in the system's boot process and overall hardware health checking.