12.1.10 Practice Questions

Match each notebook fn key icon label on the left to the corresponding key on the right.

1 > Touchpad (on/off) 2 > Screen orientation 3 > Wireless (on/off) 4 > Bluetooth (on/off) 5 > Dual displays 6 >Play/pause media Explanation: The notebook fn key icons are as follows: 1. Turn the touchpad on or off 2. Change the screen orientation 3. Turn the wireless on or off 4. Turn Bluetooth on or off 5. Enable dual displays 6. Play or pause media

A manufacturing company has customized a computer application that supervisors use to track line worker efficiency. Supervisors will interact with the application while walking within and between work areas and will also use the laptop while sitting at their desks. Which of the following laptop features will BEST minimize the awkward movement of carrying a bulky laptop with a hinged display while providing the flexibility to use the device at a desk?

> A rotating or removable screen Explanation: A laptop with a removable or rotating screen gives the user the flexibility of a notepad or tablet computer, especially if stylus functionality is included. When removed from a docking station, a hinged laptop is still awkward to carry in an opened position. Special function keys do not make a hinged laptop less awkward to use. A touchscreen display is usually incorporated into a laptop with a removable or rotating screen, but is also available for hinged laptops. This feature would not make the device less awkward to carry.

Which component is designed to let you use a notebook system as a desktop system by making it possible to connect a normal-sized external mouse, keyboard, monitor, and speakers?

> Docking station Explanation: A docking station lets you use a notebook systems as a desktop system. The docking station includes special ports that connect to the back of the notebook and let you use normal-sized external mouse, keyboard, monitor, and speakers. USB ports can allow you to individually connect external components, such as a keyboard or mouse, but are not designed as an all-in-one solution for simulating a desktop environment. FireWire ports are often used for connecting external hard drives and digital camcorders that benefit from a high transfer rate. However, they are not designed as an all-in-one solution for simulating a desktop environment. Bluetooth is designed for connecting short-range wireless devices (such as speakers or a headset), but is not designed as a desktop environment connection solution. Infrared wireless sends data and communications wirelessly over an infrared connection from a device to a computer. However, infrared is not designed as a desktop environment connection solution.

You need to replace the video card in a laptop. Which of the following is the first step?

> Find a service manual with correct disassembly procedures. Explanation: Before replacing the video card, find the documentation to determine the location of screws and to identify installation sequences for accessing the system components. On most notebooks, you access the video card by removing the keyboard. Some video cards are integrated on the motherboard and cannot be replaced. If the video card can be replaced, you will need to disconnect the display wires. You can typically view or add memory to a laptop by removing the access panel on the bottom of the notebook. The bezel is the case that the LCD screen is set in and typically houses the antennae for wireless network cards.

You have a notebook computer with a built-in wireless network card. One day, the network card stops working. Because the network card is integrated onto the motherboard, you do not want to replace the entire motherboard. What can you use to connect to the wireless network? (Select two.)

> Insert a wireless USB network card. > Insert an ExpressCard wireless network card. Explanation: You can add devices (such as a wireless card) to a notebook computer using USB or ExpressCard interfaces. You cannot add a PCI card to a notebook. The infrared port is not able to connect to the wireless network, as it uses a different signal type to communicate between devices. Bluetooth is used to connect to personal area networks (PANs), not LANs.

While using the touchpad on a laptop computer, you notice that the mouse is not responding very well, making it difficult to move the mouse around the screen. Which of the following actions would MOST likely fix this problem?

> Recalibrate the touchpad. Explanation: To fix this problem, you need to recalibrate the touchpad. The most common problem for a touchpad is that the mouse cursor is not controlled properly based on where you press. Some notebooks recalibrate the touchpad at every system boot. Most notebooks include a utility for calibrating the touchpad. A stylus is used on a digitizer pad or the touchscreen on tablet PCs. Replacing the touchpad would be expensive and not the most likely fix for this particular issue. Cleaning your fingers would probably not resolve the issue.

You recently replaced a malfunctioning video card on your laptop. After you reassemble the laptop, everything works well except for the wireless network connection. The wireless adapter functioned correctly before you replaced the video card. Which action can MOST likely resolve this problem?

> Reconnect the antenna connections. Explanation: The wireless connection is affected by the internal antenna. After replacing a video card or LCD screen, be sure to reconnect the antenna. Because the wireless connection functioned correctly before you replaced the video card, you know the network card works fine and should not need replacement. A USB-compatible wireless network device would provide a new connection, but does not necessarily resolve the problem. Because all of the other components function correctly, removing and reconnecting the battery would not resolve the internal internet connection.

As a technician in a computer repair shop, you have determined that the processor in a laptop needs to be replaced with one with a faster processing speed. However, when you remove the keyboard to expose the processor, you notice that the processor is soldered onto the motherboard. Which of the following is the BEST solution for replacing the processor?

> Replace the motherboard with a faster processor. Explanation: Some notebooks have processors soldered onto the motherboard. On these systems, you will not be able to upgrade or replace the processor. Instead, the best solution is to upgrade the motherboard with a faster processor. You should never attempt to unsolder the processor and solder a new one into the motherboard. Replacing the entire laptop with a new one that has the required processor is an expensive solution and is not the best solution in this particular scenario. Upgrading or adding new memory can sometimes help enhance the processing speed, but doing so is not equivalent to upgrading the processor.

You are troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while they were downloading a large file through the wireless network while the system was plugged in at their desk. You have checked the system and determined that the backlight has stopped working. Which of the following are the MOST likely causes? (Select two.)

> The inverter in the LCD assembly has malfunctioned. > The cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced. Explanation: The two main problems encountered with LCD backlights are a burnt-out CCFL or a malfunctioning inverter. It is also possible to have a power management setting that turns off the backlight to save power. However, this setting would only be applied if the system were running on battery. Wireless radio signals do not interfere with the workings of the backlight. Extended downloads does not demand higher DC power. There is no malware that can target backlight circuitry.

A user opens a help desk ticket to replace a laptop keyboard. The user reports that the cursor randomly moves when typing, causing them to make frequent typing corrections. The problem does not occur when the laptop is attached to a docking station and an external keyboard is used. You want to find a more affordable solution than replacing the keyboard. Which of the following actions BEST mitigates this problem?

> Use the special function key to disable the touchpad when the laptop keyboard is used. Explanation: The random cursor movements are caused by the user interacting with the touchpad. Using the special function keys to disable the touchpad will remedy the unwanted interactions. The screen resolution does not affect cursor movements, typing interactions, or touchpad interactions. The mouse speed settings do not affect cursor movements, typing interactions, or touchpad interactions.