Candice, a graphic designer, attaches a new portable hard disk to her computer. She can connect to the hard disk immediately without installing any drivers. After some time, she turns on the second monitor attached to her computer. The display malfunctions despite being connected to the computer and receiving adequate power supply. What is the most likely explanation for this issue?
A) Candice did not open the Device Manager when attaching the hard disk.
B) Hard disks are not PnP-friendly devices.
C) Computers contain a limited number of IRQ lines.
D) The display driver did not go through driver signing when Candice turned it on.

Question

Quizplus · Accepted Answer

The issue is most likely due to the computer running out of available IRQ lines. When Candice attached the hard disk, it was recognized by the computer as a PnP device and was assigned an available IRQ line. However, when she turned on the second monitor, there may not have been any available IRQ lines left, causing the display to malfunction.

Candice, a Graphic Designer, Attaches a New Portable Hard Disk