COMPTIA A+ Practice Exam

Question: 1 / 525

What is the default IRQ for COM2?

While COM1 typically uses IRQ4, COM2 uses IRQ3 as its default.

This is because COM1 is considered the primary serial port and therefore has higher priority,

so it is assigned a lower IRQ value.

COM2 is considered the secondary port and is assigned a higher IRQ value.

Therefore, options A, C, and D are incorrect as they do not correspond to the default IRQ value for COM2.

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