Which I/O port belongs to LPT2? A. 378H B. 278H C. 3f8h D. 2e8h E. None of the above

378H
278H
3f8h
2e8h E. None of the above

The correct answer is C. 3f8h.

LPT2 is the second parallel port on a computer. It is typically used to connect a printer. The I/O port for LPT2 is 3f8h. This means that when the computer sends a signal to the LPT2 port, it is sending it to the address 3f8h.

The other options are incorrect. Option A, 378h, is the I/O port for LPT1. Option B, 278h, is the I/O port for the serial port COM1. Option D, 2e8h, is not a valid I/O port.

I hope this helps!