Chapter 9
Preferred Roming List (PRL)
A database residing in a wireless device that contains information used during the system selection and acquisition process.
Light-emitting diode
A semiconductor device that emits light when an electric current passes through it.
Sleep
A system power state where they system appears to be off, but volatile memory is refreshed and some components remain powered so the computer can wake up quickly if it receives input from a keyboard, LAN, or USB device.
You have removed the bezel from a notebook display that has stopped functioning. You see a DC-to-AC power inverter at the base of the screen. Which of the following BEST describes the type of display you are working with?
An LCD display that uses CCFL backlighting.
Near Field Communication Connector
An NFC connector used to emulate cryptographic smart card functionalities for RFID tags or memory cards.
Liquid crystal display (LCD)
An electronic display system that switches pixels on and off using liquid crystals that rotate polarized light.
The integrated mouse, the small monitor, and the compact nature of the keyboard are impeding your work when you use your notebook, but you still need a system that is portable if necessary. You currently own a spare USB mouse and keyboard, as well as a nice monitor. Which option will give you the portability you need while at the same time save money and not impede your work?
Buy a docking station for your notebook.
Tethering
Connecting one device to another.
You want to use Hibernation on your Windows notebook. What does it need to have?
Enough free hard drive space
An internal laptop keyboard is generally connected to the laptop's system board using a:
Ribbon cable
A technician is tasked to add a valid certificate to a mobile device so that encrypted emails can be opened. Which of the following email protocols is being used?
S/MIME
A technician is tasked with repairing a laptop keyboard with sticking keys. Which of the following actions should the technician perform before replacing the keyboard?
Spray compressed air between the keys.
A company is considering providing smartphones to their employees and is investigating the interaction of the phones with iTunes, iCloud, Google Drive, Dropbox, and OneDrive. Which of the following data synchronization methods is being considered?
Synchronization to the cloud
A technician is tasked with replacing an internal laptop hard drive. Which of the following hard drive standards would be of MOST concern when selecting a replacement?
The hard drive's form factor
Android Package (APK)
The package file format used by the Android operating system for the distribution and installation of mobile apps and middleware.
After replacing a laptop touchpad, a technician finds that the touchpad does not move the cursor. However, the attached USB mouse does. Before opening the laptop case to re-check the connection, which of the following actions should the technician perform?
Unplug the USB mouse and re-check touchpad movements.
In preparation to use your notebook on the airplane as you travel to a conference, you disconnected the external USB mouse. The cursor drifts consistently to the left side of the screen while using the built-in trackpad and mouse buttons on the notebook. Which of the following actions would MOST likely stop the mouse from drifting?
Update the trackpad drivers.
A user normally connects a laptop to a company's network using the laptop's internal wireless NIC. The laptop does not have an Ethernet port. The wireless network has failed, and the replacement part will take two days to arrive. Which of the following solutions will connect the laptop to the company's wired network?
Use a USB-to-RJ45 dongle and connect to a wall jack with an Ethernet cable.
Device manufacturers include Microsoft, Samsung, and HTC.
Windows
Closed source and second most popular mobile device operating system.
iOS
You have a notebook computer with a built-in wireless network card. One day, it 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 an ExpressCard wireless network card Insert a wireless USB network card
Which feature makes it possible to close some notebook computers and still use the touchscreen?
180 degree rotating touchscreen
Drivers for a small trucking company rely on a smartphone navigation application. When the smartphone loses internet connectivity, the maps don't update properly. Also, the company pays extra for a premium data service plan to support the application. Which of the following mobile devices could replace the smartphone navigation application, could provide map coverage when internet connectivity is lost, and does not require a data plan?
A GPS-enabled personal navigation device
Hibernate
A system power state where the system appears to be off and power consumption is reduced to a lower level.
A wireless technology standard for exchanging data over short distances.
Bluetooth
Which of the following input devices uses a stylus?
Digitizer
You need to replace the video card in a laptop. What is the first step?
Find a service manual with correct disassembly procedures.
You have just purchased a used laptop, and you want to configure it to hibernate when you press the power button. You edit the Power Options settings and enable hibernation, then you configure the power button to trigger hibernation. Everything works fine for several weeks. However, one day when you press the power button, the laptop does not hibernate. Which of the following will BEST resolve this issue?
Free up disk space.
Which feature allows a tablet to recognize multiple finger touches at the same time?
Multi-touch
Which of the following is an extra button or knob on a laptop keyboard that moves the mouse cursor?
Pointing stick
A user needs to use her laptop to give a presentation using a video projector. She called asking you how to switch the display to the external monitor port on her laptop. What should you tell her?
Press and hold the Fn key; then press the monitor function key (image of a monitor on it).
A user opens a help desk ticket to replace a laptop keyboard. The user reports that the cursor randomly moves when typing using the laptop keyboard, causing the user 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 would mitigate the problem?
Use the special function key to disable the touchpad when the laptop keyboard is used.
The human resources department wants to give gifts away at the company's summer party. They would like to have an assortment of fitness tracker wristbands, smartwatches, smart glasses, and virtual reality headsets. They have been trying to locate these on the internet, but have been unsuccessful. Which of the following types of mobile devices should you tell them to search for?
Wearable devices
Devices solely designed and developed by Apple.
iOS
You want to configure Power Plans on your Windows 10 laptop computer. Which of the following can do this? (Select TWO.)
-Go to settings > System > Power & Sleep -In the Notification Area, double-click the battery icon. Click Power Options
You need to replace the hard disk in your laptop computer. Which of the following hard drive sizes would you likely choose for the laptop?
2.5"
Gyroscope
A feature that measures the vertical and horizontal orientation of the device.
Hotspot
A hotspot is a physical location where you can obtain wireless Internet access using a wireless local area network (WLAN) with a router connected to an internet service provider.
Long-Term Evolution (LTE)
A mobile communications standard used by 5G.
Primary Rate Interface (PRI)
A telecommunications interface standard used on an Integrated Services Digital Network (ISDN) to carry multiple DS0 voice and data transmissions between the network and a user.
International Mobile Subscriber Identity (IMSI)
A unique identifier that defines a subscriber in the wireless world, including the country and mobile network to which the subscriber belongs. The IMSI is one of the pieces of information stored on a SIM card.
International Mobile Equipment Identity (IMEI)
A unique number given to every single mobile phone. The number is typically found behind the battery.
You are currently managing a few Apple iPad devices that run the iOS operating system. Which of the following BEST describes the architecture used by this device?
ARM
A technician is tasked with increasing the RAM memory on a laptop by adding a SODIMM module to an empty memory slot. Which of the following processes will seat the module in the slot?
Align the notch on the long side of the memory module with the rise in the memory slot. Insert the module pins into the slot at a 45-degree angle. Rotate the module by pressing down until the side hold-down clips snap into place.
Bluetooth
Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices and for building personal area networks (PANs).
Accelerometer
Detects the physical movements of the tablet by measuring its linear acceleration in one dimension.
You have just purchased a new laptop with built-in 802.11 wireless and Bluetooth capabilities. When you boot into Windows, you do not see a Bluetooth adapter listed in Device Manager. Which of the following would be BEST to perform first?
Enable Bluetooth in the BIOS/UEFI configuration.
You use productivity apps on your iPad tablet device while traveling between client sites. You're concerned that you may lose your iPad while on the road and want to protect the data stored on it from being compromised. Currently, your iPad uses a 4-digit PIN number for a passcode. You want to use a more complex alpha-numeric passcode. You also want all data on the device to be erased if the wrong passcode is entered more than 10 consecutive times. What should you do? (Select TWO. Each option is part of the complete solution.)
Enable the Erase data option Disable the simple passcode option
Which component within a tablet device, senses rotation to measures acceleration horizontally and vertically at the same time?
Gyroscope
When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright to the user. Which of the following technologies is uses to detect this device movement? (Select TWO).
Gyroscope Accelerometer
After arriving in a new city today, a traveling sales team member calls you stating that his wireless connection no longer works. He has checked the wireless configuration, and he knows it to be correct because it was working yesterday. What should you do first?
Have him verify that the wireless card's hardware switch is in the On position.
A technician is assisting a user with rebooting a frozen laptop that does not respond to keystrokes or mouse clicks. Which of the following is the SIMPLEST way to power down the laptop?
Hold down the power button for several seconds.
A physical location where you can obtain wireless internet access using a WLAN.
Hotspot
Which of the following is a 172-pin DIMM often used in laptops?
MicroDIMM
As an IT technician, you are often asked to work on laptop computers that included internal wireless network cards. Which of the following is the MOST commonly used type of card for these internal wireless adapters?
Mini-PCI
Which type of interface is typically used for internal wireless networking cards in laptops?
Mini-PCI
You have subscribed to a cloud-based service to synchronize data between your mobile device and your PC. Before allowing the data to be synchronized, this service uses a process where the cloud service and the client on the mobile device verify each other's security certificates. What is this process called?
Mutual authentication
A connector used to emulate cryptographic smart card functionalities.
NFC
A user reports that an older laptop is having trouble connecting with newer wireless networks. Which of the following actions should a technician consider as an alternative to replacing the laptop?
Replace the internal wireless card.
A user is trying to log into Windows on her notebook computer. She enters the correct password for her user account, but the system won't let her authenticate, claiming the wrong password has been entered. Which of the following is MOST likely causing this problem?
She has turned Num Lock on, causing the keyboard to register numbers instead of letters.
Which ACPI power state allows a system to start where it left off, but all other components are turned off?
Sleeping
Allows you to share the internet connection of a phone with a laptop.
Tethering
Bezel
The plastic casing around an electronic device's screen.
When a presenter at a conference connects a laptop to a projector, the projector mirrors the laptop's display. The presenter would like it to extend the laptop's desktop instead. Which of the following options is the QUICKEST way to make the change?
Toggle the dual display function key on the laptop.
A user calls the help desk stating that the touchpad on a laptop does not work. Which of the following actions would BEST help the technician diagnose the problem?
Toggle the touchpad function key.
A technician is tasked with configuring a mobile device to connect securely to the company network when the device is used at off-site locations where only internet connectivity is available. Which of the following should the technician configure?
VPN
From your laptop, you have been working on a large project that has required you to open a lot of items (programs, files, etc.). It is time to leave the office and make the two-hour journey home. You will be working on this project a bit more when you arrive at home. Your computer's battery is failing and only has a very short life span (about one hour) before your computer loses power. When you arrive home and open the lid of your laptop, nothing happens. After plugging in your computer and powering it on, you find that all of your programs and files have been closed. To troubleshoot this, you open Control Panel and navigate to the settings that control what your computer will do when the laptop lid is closed. Which of the following power settings MUST you choose to prevent the same problem in the future?
When I close the lid: Hibernate
Closed source and third most popular mobile device operating system.
Windows
You're troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while he was downloading a large file through his wireless network card while the system was plugged in at his desk. You've checked the system and determined that the backlight has stopped working. Which of the following is the MOST likely cause? (Select TWO).
• The inverter in the LCD assembly has malfunctioned. • The cold cathode fluorescent lamp has burned out and needs to be replaced.
A sales person typically carries a laptop computer to several off-site customer meetings each day, but needs the flexibility to quickly attach other peripherals and charge the laptop battery while at their office desk. Which of the following laptop feature would BEST meet these requirements?
A laptop docking station
Mobile Virtual Private Network (Mobile VPN)
A mobile virtual private network (mobile VPN) provides mobile devices with access to network resources and software applications on their home network when they connect using other wireless or wired networks.
Infrared port (IR)
A port on a mobile device that enables devices to exchange data without using cables.
Device manufacturers are countless.
Android
Open source and most popular mobile device operating system.
Android
Vera has brought her notebook computer to you for repair. After listening to her describe its symptoms, you hypothesize that the notebook may have a malfunctioning keyboard. Which of the following steps can you take to BEST determine whether the keyboard needs to be replaced? (Select TWO).
Connect an external keyboard. Check for special keyboard features that could be enabled that may cause some keys to perform alternate tasks.
Which of the following battery types offers the greatest storage capacity in the smallest amount of space?
Lithium ion (LIB)
Which of the following battery types has the greatest need to be completely drained before being recharged?
Nickel cadmium (NiCad)
Inverter
A power supply that converts DC power from a computer to AC power for a screen.
Lightning
A proprietary computer bus and power connector created by Apple Inc. to replace its previous proprietary 30-pin dock connector.
A manufacturing company has customized a computer application that supervisors will 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 would 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
Software development kit (SDK)
A set of software development tools that allows the creation of applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar development platform.
Global Positioning System (GPS)
A space-based navigation system that provides location and time information in all weather conditions anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
A technician is tasked with replacing a Wi-Fi antenna in a laptop computer. Which of the following places would the antenna MOST likely to be located?
Around the laptop's bezel
A user hibernates a laptop after giving a video presentation. Now, when it resumes, the display flickers for a moment, but remains blank. A technician suspects a bad graphics processing unit (GPU). Which of the following troubleshooting steps should be completed? (Select TWO).
Connect an external display device. Toggle the dual display function key.
Which component lets 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
While traveling in a car, a user who has an unlimited data plan on a smartphone opens a wireless connection to share the internet with other passengers. Which of the following connection types is MOST likely being used?
Hotspot
A landscaping company's employees receive payment for their services using a credit card reader that physically attaches to an Apple mobile device. Which of the following connection types is being used?
Lightning
A user complains that his notebook display has started to go dim intermittently. You suspect the backlight might need to be replaced, but you want verify that the backlight is failing before you replace it. Which of the following would be BEST to check before replacing the backlight?
Make sure that the dimming isn't being caused by a power saving method that has been configured to conserve notebook power.
Provides mobile devices with access to network resources and software applications on their home network when they connect using other wireless or wired networks.
Mobile VPN
Recently, your laptop won't power on, and the battery is not charging. You suspect the block on the power cord (also known as a brick) no longer works. Which tool will help you troubleshoot this problem?
Multimeter
You have recently issued new mobile phones to the sales team in your company. Each phone has the ability to store and transmit encrypted information for such things as making payments at a checkout counter. Which of the following technologies is being used in these phones?
NFC chips
You are troubleshooting a malfunctioning laptop computer. Nothing appears on the LED display when the system is powered on. Which of the following is the BEST step to try first?
Plug in an external monitor.
You're troubleshooting a notebook system that uses a digitizer pad and stylus for user input. The user has complained that the digitizer pad registers stylus registers taps about one inch to the right of where the taps actually occur. Which of the following actions would MOST likely fix this issue?
Recalibrate the digitizer pad.
A technician is servicing a laptop that works properly when the power adapter is plugged in. Even though the battery icon shows that the battery is fully charged, when the laptop is unplugged, the laptop immediately shuts down. Which of the following actions should the technician perform?
Replace the laptop battery.
A technician is replacing a hard drive in a laptop. Which of the following is the FIRST action the technician should perform before opening the laptop case?
Review the laptop manufacturer's documentation.
Which of the following protocols can be enabled so email is encrypted on a mobile device?
SSL
Backlight
The light that illuminates an LCD screen so that images on the screen are visible.
You just purchased an iPad tablet device. You want to synchronize your photos, music, email, and contacts from your Windows 10 PC to the device. How can you connect the device to the PC? (Select TWO. Each option is a complete solution.)
USB cable and Wi-Fi wireless connection
A user wants to use a laptop to display a presentation on a large TV monitor that has an HDMI connection. Which of the following laptop ports or connections can be used to add this display device? (Select TWO).
USB port using a USB-to-HDMI adapter DisplayPort using a DisplayPort-to-HDMI cable
You currently use the Exchange email client on your desktop PC. You use it to connect to an email server provided by a service provider using the IMAP and SMTP protocols. You recently purchased an iPad, and you want to configure its Mail app to connect to your email server. Which of the following BEST describes whether this task can be accomplished?
You can configure the Mail app on an iPad to connect to an email server using the IMAP and SMTP protocols.
