CompTIA A+ 220-901

Answer: D - Of the hardware components listed, the most difficult to repair is the System Board.

Key Takeaway: Due to the condensed nature of laptops, replacing a system board is possible the most difficult task for a technician to undertake because it requires near dis-assembly of the entire laptop. Replacing RAM, Keyboard, and the Display are less of a hassle, although the replacement parts (in the instance of a display, for instance) may not be worth the cost.