Chapter 9 - Laptop and Mobile Device Hardware Flashcards
A client has a laptop with which you are unfamiliar. you are asked to perform a memory upgrade. How can you obtain the service manual for this laptop computer?
A. By pressing F1 while in Windows
B. By pressing F2 while the system is booting up
C. By reading the paper copy that comes with the laptop
D. By searching the manufacturer’s website
D. Laptop service manuals can be obtained from the manufacturer’s website. It’s very rare that paper service manuals are shipped with the laptop. Pressing F1 while in Windows will open Windows Help, and pressing F2 on many laptops during the system boot will take you into the BIOS/UEFI.
Your manager tells you to replace the inventor on a broken laptop. Where will you find this components?
A. Underneath the keyboard
B. In the display
C. Next to the heat sink and fan
D. Near the CPU
B. The inverter, which transforms AC power into DC power for an LCD backlight, is found in the display. It’s not underneath the keyboard, next to the heat sink and fan, or near the processor, which are all located in the bottom half of the laptop.
You need to replace an LCD on a defective laptop. Which of the following are components of an LCD? (Choose all that apply.)
A. Inverter
B. Screen
C. Wi-Fi card
D. Backdrop
A, B. The components of an LCD screen are the inverter, screen, and blacklight. LCD display units also have a Wi-Fi antenna (not the card), webcam, and microphone. There is no backdrop component.
A user complains that their mouse cursor randomly jumps to different places on the screen when they type. Which device might you want to disable to prevent this from happening?
A. Touchpad
B. Mouse
C. Point stick
D. Trackball
A. The touchpad sits below the keyboard, where the user’s palms may rest when they are typing. That contact may cause the mouse cursor to appear to jump on the screen. Disabling the touchpad should prevent this from happening.
One of the users on your network needs to travel and wants to work on the airplane. Which laptop accessory will allow them to power their laptop from the airplane?
A. AC adapter
B. DC adapter
C. Battery converter
D. Airplane mode
B. - A DC adapter converts the DC output from a car or airplane accessory power plug into the DC voltages required by your laptop. An AC adapter is used with standard wall electrical outlets. There is no battery converter. Airplane mode shuts off all wireless communications.
You need to replace defective DDR4 memory in a laptop. How many pins will the replacement memory module have?
A. 200
B. 204
C. 260
D. 288
C. DDR4 SODIMMs have 260 pins. DDR2 SODIMMs have 200 pins, DDR3 SODIMMs have 204 pins, and DDR5 has 262. No SODIMMs currently have 288 pins, but DDR4 DIMMs do.
A user complains that their 2-in1 laptop screen does not properly detect where they place their finger on the screen. What should you do first to resolve the issue?
A. Replace the touch screen
B. Replace the touchpad
C. Recalibrate the touch screen
D. Recalibrate the touchpad
E. Degauss the touch screen
F. Degauss the touchpad
C. If the touchscreen is not responding properly, the first step is to recalibrate it. If it continues to have problems, the screen may be defective and might need to be replaced. Degaussing is a process used on old CRT monitors and is not relevant to touchscreens.
You need to wirelessly connect two accessories to a smartphone. Which of the following could be valid options to connect these wireless accessories? (Choose two.)
A. USB
B. Lightning
C. NFC
D. Bluetooth
C, D. Two wireless connectivity options are NFC and Bluetooth; hotspot (not mentioned) is the third. USB, Lightning, and serial are wired connectivity methods.
There has recently been a string of hardware thefts in your office building. What should you recommend that your users do to help avoid the problem?
A. Enable GPS tracking
B. Use a docking station
C. Use a cable lock
D. Use the screensaver
C. Sometimes the only way to ensure that equipment doesn’t walk away is to lock it down physically. Laptops come equipped with holes for cable locks that can be used to secure them to a desk or other workstation. GPS tracking might help after the device is stolen, but it’s best to prevent that in a the first place. A docking station does not prevent physical theft, nor does a screensaver with a password.
Which of the following describes the job of an inverter in a laptop?
A. It changes the screen orientation when the laptop is rotated
B. It converts AC power into DC power for the display backlight
C. It converts DC power into AC power for the display backlight
D. It allows the laptop display to function in tablet mode
C. The laptop power supply converts AC power into DC power for the laptop’s internal circuitry. The display backlight, if used, needs AC power. The inverter’s job is to convert (invert) the DC power into AC power for the backlight.
A user is getting a new laptop. Which of the following is not a valid option to get the user’s files and data from the old hard drive to the new hard drive?
A. Manually copy files from the old drive to the cloud, and then to the new drive.
B. Manually copy files from the old drive to an external hard drive, and then to the new drive.
C. Use a hard drive migration app
D. Use the NFC disk transfer utility
D. To migrate data from one hard drive to another, you can manually copy the data or use a migration app. There is no NFC disk transfer utility.
A user on your network wants to be able to draw images on a screen and have the laptop capture them. What type of device needs to be installed on the user’s laptop?
A. Inverter
B. Capturer
C. Digitizer
D. Touchpad
C. The user needs a digitizer, which takes input from the device, such as drawn images, and converts them into electronic images on the computer. The user could also use a touchscreen for the same purpose. An inverter changes DC power into AC power for a display backlight. There is no capturer laptop device. A touchpad is a pointing device that allows a user to control the mouse cursor.
A user has requested a laptop memory upgrade. The technician attempts to put in new memory, but the memory module is a bit too wide for the slot. What is the most likely scenario?
A. The technician is trying to install DDR4 into a motherboard with DDR3 slots.
B. The technician is trying to install DDR3 into a motherboard with DDR4 slots.
C. The technician is trying to install MicroDIMMs into SODIMM slots.
D. The technician is trying to install DIMMs into SODIMM slots.
A. Laptops use SODIMMs (or possibly MicroDIMMs), which are much smaller than the standard DIMMs used in desktops. DDR2 and DDR3 SODIMMs are 67.6 millimeters wide, whereas DDR4 SODIMMs are 69.6 millimeters wide. It’s likely that the technician has DDR4 SODIMMs and the motherboard supports DDR3 SODIMMs.
You have a user who needs to keep desktop devices such as keyboard, monitor, and mouse permanently connected so that they can be used by an attached laptop. what type of device do you recommend that they use?
A. Docking Station
B. Keyboard, video, mouse (KVM) switch
C. Input/Output virtual server
D. USB hub
A. A docking station made specifically for its associated brand and model of laptop can host desktop components permanently, regardless of whether the laptop is attached to the docking station. When the laptop’s portability is not required, but instead use of the desktop components is the priority, attaching the laptop to the docking station makes such components available to the laptop without separately attaching each component.
The process by which the processor slows down to conserve power is officially called ________.
A. Underclocking
B. Cooling
C. Disengaging
D. Throttling
D. The processor can reduce how fast it’s working, which is called throttling, to help conserve battery life. CPUs do not perform underclocking, cooling, or disengaging.
