Chapter 10 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?
By pressing F1 while in Windows
By pressing F2 while the system is booting up
By reading the paper copy that comes with the laptop
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.
Your manager tells you to replace the inverter on a broken laptop. Where will you find this component?
Underneath the keyboard
In the display
Next to the heat sink and fan
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.)
Inverter
Screen
Wi-Fi card
Backdrop
A, B. The components of an LCD screen are the inverter, screen, and backlight. LCD display units will also have a Wi-Fi antenna (not the card), webcam, and microphone. There is no backdrop component.
A user complains that his mouse cursor randomly jumps to different places on the screen when he types. Which device might you want to disable to prevent this from happening?
Touchpad
Mouse
Point stick
Trackball
A. The touchpad sits below the keyboard, where a user’s palms may rest when he is 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 she wants to work on the airplane. Which laptop accessory will allow her to power her laptop from the airplane?
AC adapter
DC adapter
Battery converter
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?
200
204
260
288
C. DDR4 SODIMMs have 260 pins. DDR2 SODIMMs have 200 pins, and DDR3 SODIMMs have 204 pins. No SODIMMs currently have 288 pins, but DDR4 DIMMs do.
A user complains that his 2-in-1 laptop screen does not properly detect where he places his finger on the screen. What should you do first to resolve the issue?
Replace the touch screen. Replace the touchpad. Recalibrate the touch screen. Recalibrate the touchpad. Degauss the touch screen. Degauss the touchpad.
C. If the touch screen 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 touch screens.
You are sitting in a coffee shop and using the public wireless network. You suddenly notice suspicious activity on your laptop. Which laptop feature should you use?
Wi-Fi function key
Cellular function key
Bluetooth function key
Laptop lock
A. Your best bet is to turn off your wireless connection immediately in order to sever the tie between your laptop and the public network. This is done using the Wi-Fi function key. Cellular and Bluetooth are different wireless connections. A laptop lock prevents a device from being physically stolen.
There has recently been a string of hardware thefts in your office building. What should you recommend that your users implement to help avoid this problem?
Enable GPS tracking.
Use a docking station.
Use a cable lock.
Use the screensaver lock.
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 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?
It changes the screen orientation when the laptop is rotated.
It converts AC power into DC power for the display backlight.
It converts DC power into AC power for the display backlight.
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.
Which of the following laptop features turns off all wireless communications?
Wireless function key
Cellular function key
Bluetooth function key
Airplane mode function key
D. When enabled, Airplane mode turns off all wireless communications, including Wi-Fi, cellular, Bluetooth, and GPS. Wireless, cellular, and Bluetooth function keys will toggle on or off that particular communication method, but not all wireless communications.
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 his laptop?
Inverter
Capturer
Digitizer
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 touch screen 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 barely too wide for the slot. What is the most likely scenario?
The technician is trying to install DDR4 into a motherboard with DDR3 slots.
The technician is trying to install DDR3 into a motherboard with DDR4 slots.
The technician is trying to install MicroDIMMs into SODIMM slots.
The technician is trying to install DIMMs into SODIMM slots.
A. Laptops use SODIMMs (or possibly MicroDIMMs), which are much smaller than 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?
Docking station
Keyboard, video, mouse (KVM) switch
Print server
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 _________________.
Underclocking
Cooling
Disengaging
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.
