How to Configure a Second Monitor on a Laptop

C.

The correct answer to the question is option B: Use the Fn and function key combination.

When an end user wants to connect a second monitor to a laptop, the laptop must have a video output port such as HDMI, VGA, or DisplayPort. Once the monitor is connected to the laptop via the appropriate cable, the laptop must be configured to show the image on both screens.

To do this, a technician can use the Fn and function key combination. Many laptops have a function key (Fn) on the keyboard that can be used to toggle between different display modes. This function key is often located next to one of the F keys at the top of the keyboard.

To configure the laptop to display on both screens, the technician should follow these steps:

1. Connect the second monitor to the laptop using the appropriate cable.
2. Press the Fn key on the keyboard and hold it down.
3. While holding down the Fn key, press the function key that corresponds to the display mode you want to use. The function key may have a picture of a monitor on it or may be labeled with the letters "LCD/CRT" or "Display".
4. Release the Fn key.

The display mode options may include:

• Duplicate or clone: This displays the same image on both the laptop screen and the external monitor.
• Extend or dual: This extends the desktop across both screens, allowing the user to drag windows and applications between them.
• Projector mode: This is similar to duplicate mode, but is optimized for presentations and may change the display resolution and orientation.

Once the display mode is configured, the technician may need to adjust the monitor display settings to optimize the image quality and resolution on the external monitor. This can be done through the Windows or macOS display settings, or through the graphics card control panel if applicable.

Option A (Plug an external monitor into the USB port) is incorrect because USB ports do not typically support video output, unless the laptop has a USB-C port with DisplayPort Alt Mode or Thunderbolt 3 support.

Option C (Adjust the monitor display settings) is only part of the solution and does not address how to configure the laptop to show both screens.

Option D (Enable DisplayPort) is also incorrect because enabling DisplayPort does not automatically configure the laptop to show both screens. DisplayPort is simply a type of video output port that can be used to connect external displays.