CIT 111 Ch.12: Mobile devices

Mobile device applications fall into two categories. Some are reviewed, approved, and signed with a certificate by the app service, while others are not. Which category do apps fall into if they have been reviewed, approved, and signed with a certificate?

- Trusted - Untrusted

Which of the following help to improve the security of sensitive information on your mobile device if it is lost or stolen? (Select three.)

-A screen lock -Locator applications -Remote wipe

Which of the following medical devices utilize Bluetooth or Wi-Fi technology to communicate with a mobile phone? (Select two.)

-CGM -Fingertip EKG

When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright for the user. Which of the following technologies detects this movement on a mobile device? (Select two.)

-Gyroscope -Accelerometer

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.

Which of the following are devices categorized as part of the Internet of Things (IoT)? (Select two.)

-Medical sensors -Smartwatches

Which of the following are advantages of using an OEM replacement LCD display? (Select two.)

-The LCD display is the same quality as the screen you are replacing. -The LCD display is guaranteed to work as a replacement.

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.

You just purchased an iPad tablet device. You want to synchronize your photos, music, email, and contacts from your Windows 11 PC to the device. Which of the following can you use to connect the device to your PC? (Select two.)

-USB cable -Wi-Fi wireless connection

Which of the following mobile device components are often installed under the bezel of a mobile device display? (Select three.)

-Webcam -Wi-Fi antenna wires -Microphone

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

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

Joe, a frequent visitor to a branch office, attempts to connect his tablet to the office wireless network, but is unable to connect to the internet, even though he has verified that the SSID and password are correct. Joe attempts to connect to a coworker's hotspot, but is still unable to connect to the internet. Which of the following is the MOST likely cause of this issue?

Airplane Mode has been set on his tablet.

One of your users suspects that the battery in their laptop computer is failing. You test it by using a known good power adapter long enough to receive a full charge. The battery reads that it is fully charged in Windows. You then disconnect the laptop from its power source and wait to see how long the battery lasts. The battery dies after only about 15 minutes. Which of the following actions will MOST likely fix this problem?

Assume that the battery is failing and replace it.

Joe, a mobile device user, is allowed to connect his personally owned tablet to a company's network. Which of the following policies defines how company data is protected on Joe's tablet?

BYOD Policy

A user has configured their mobile device to unlock with facial recognition. Which of the following methods for securing the mobile device is being used?

Biometric authentication

You have just purchased a smart watch to track your fitness statistics and health. To change the interface or update the firmware, you need to use an app on your smartphone. Which of the following connection technologies will you MOST likely use to communicate between your watch and the app?

Bluetooth

You want to be able to use a high-quality, noise-cancelling headset with your mobile phone to make conference calls and to listen to music. However, your new mobile phone does not have an earphone jack. Which of the following technologies allows you to wirelessly connect your headset to your new phone?

Bluetooth

Which of the following components allows a tablet to provide a screen interface that recognizes multiple finger touches at the same time?

Capacitive touchscreen

Lately, your laptop shuts down before it reaches the 5% set in your Windows Power Scheme. You suspect that the power meter is incorrectly reporting the battery power level. You want to calibrate the battery to synchronize the power meter to the actual battery charge capacity. However, the laptop system does not include a calibration tool. You decide to perform a manual calibration. Which of the following is the first step you need to take when manually calibrating the battery?

Charge the battery to 100%.

Joe has been issued a company-owned tablet. He finds that the performance decreases after a few hours of use. After he power-cycles the tablet, performance returns, but the tablet begins to slow again after an hour of use. Which of the following is the BEST action to troubleshoot the problem?

Check the number of apps that are running.

Which of the following is the surest way to prevent the loss of important information on your mobile device if it is lost, stolen, destroyed, or there is a natural disaster?

Configure your device to remotely back up important data to the cloud.

You have a mobile device that provides a touchscreen, but does not have touchscreen technology embedded into the display. Which of the following mobile device display components provides the touchscreen functionality?

Digitizer

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

You have recently been hired by a course development company to develop online simulations, and you have been given permission to work at home. The company has given you a laptop computer, two external displays, and a wireless mouse and keyboard. However, you also want to connect several of your own personal devices to the laptop, including a printer, headset, webcam, a third external display, and a drawing pad. You also want to be able to boot your laptop with all these devices without opening up the laptop. Which of the following items should you request from your company to help connect all these devices in the EASIEST and most EFFECTIVE way possible

Docking station

You want to use hibernation on your Windows notebook. What does it need to have for this to work?

Enough free hard disk space

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.

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. 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.

You are comparing methods for securing your mobile device. Which of the following is the BEST method to secure your device's storage?

Full device encryption

Which ACPI power state allows a system to start where it left off, but turns all other components off?

Hibernate

Which of the following mobile connection types can enable other mobile devices to connect to the internet?

Hotspot

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 the user MOST likely using?

Hotspot

Which of the following BEST describes the purpose of the USB Selective Suspend feature?

If a USB device is not in use, the USB Selective Suspend feature stops providing power to the port.

Which of the following LCD display technologies is the BEST choice for use on touchscreen displays?

In-plane switching (IPS)

Which of the following MOST accurately describes a touch pen?

Includes features such as tilt and pressure sensitivity.

Which of the following mobile device display components provides the required power for a mobile device's screen?

Inverter

Which of the following is a disadvantage of using a Lithium Ion (Li-Ion) battery over a Nickel Metal Hydride (NiMH) battery?

Li-Ion batteries have a shorter lifespan than NiMH batteries.

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

Which of the following battery types offers the greatest storage capacity in the smallest amount of space?

Lithium Ion (Li-Ion)

After entering a user ID and password, an online banking user must enter a PIN that was sent as a text message to their mobile phone. Which of the following digital security methods is being used?

Multifactor authentication

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

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 have recently purchased a new, foldable smart phone. Which of the following types of mobile device display technologies is MOST likely being used for the foldable display?

OLED

You have recently purchased a gaming laptop and want to make sure that it is properly ventilated to avoid overheating. Which of the following is the BEST way to avoid overheating the laptop (especially when gaming for hours)?

Purchase a special laptop cooling base.

You are troubleshooting a laptop system that uses a digitizer pad and stylus for user input. The user has complained that tapping the stylus on the digitizer pad 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.

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.

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.

You have ordered and are about to replace an LCD screen on a laptop device. You have already placed the laptop on a static mat, attached a static wristband, and unplugged the laptop. What is your next step in replacing the LCD screen?

Remove the battery.

Your older notebook LCD display often goes dim or sometimes blank. Which of the following would be the BEST first step to resolve this issue?

Replace the CCFL inverter

While servicing your laptop, you notice that your Lithium Ion battery is swelling. What is the BEST action you can take to resolve the situation?

Replace the battery.

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.

A technician suspects that an app on a tablet device may be surreptitiously using the camera without permission. Which of the following would be the BEST way to troubleshoot this issue?

Run an anti-malware scan.

A technician is tasked with adding a valid certificate to a mobile device so that encrypted emails can be opened. Which of the following email protocols is best for the technician to use?

S/MIME

Which of the following protocols can encrypt emails on a mobile device?

SSL

A company is considering providing smartphones to their employees and is investigating the interaction of the phones with iCloud, Google Drive, Dropbox, and OneDrive. Which of the following data synchronization methods is the company considering?

Synchronization to the cloud

Match each battery type on the left with the battery characteristics on the right. (You can use each battery type more than once.)

Takes up the most physical space. -Nickel Cadmium (NiCad) takes up the least physical space. -Lithium Ion (Li-Ion) The most expensive of Nickel batteries -Nickel Metal Hydride (NiMH) Cannot be overcharged. -Lithium Ion (Li-Ion) Suffers from swelling and catching fire. -Lithium Ion (Li-Ion)

You are troubleshooting a malfunctioning laptop computer system. The customer has indicated that the screen is always dark and difficult to read, even while the system is plugged into a wall outlet. You checked the system and determine that the backlight isn't working. Which of the following is the MOST likely cause of this issue?

The LCD cutoff switch is stuck in the Off position.

Your laptop's LCD screen is beginning to flicker and dim. You have checked the brightness setting to make sure that it is configured correctly. Which of the following is the MOST likely cause of your screen issue?

The LCD screen inverter is failing.

You've just purchased an Ethernet adapter for your Android tablet. Which of the following USB connector types would you MOST likely use to plug in to the adapter?

USB-C connector

Maria, a smartphone user, has recently installed a new app. She now experiences a weak signal and sometimes a complete signal loss at locations where she used to have a good cellular signal. Her phone battery is fully charged. Which of the following actions would BEST address this issue?

Uninstall the new app and scan for malware.

You are walking through a shopping mall. Your smartphone frequently displays a message that additional information is needed to log in. Which of the following is the MOST likely cause of this message?

Unintended Wi-Fi connections

An employee in the sales department cannot get his laptop to display through a projector. He sees the screen output on the built-in laptop display, but the video is not being displayed through the projector. Which of the following steps would be BEST to try first?

Use the fn key to redirect display to the external video port.

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.

Mobile devices can connect to the internet and other devices using a variety of connection types. Drag each connection type on the left to the appropriate description on the right.

Used to obtain wireless internet access using a WLAN. - Hotspot Used to emulate cryptographic smart card functionalities. - NFC Provides mobile devices with access to network resources and software applications on a home network. - Mobile VPN Allows you to share a phone's internet connection with a laptop. - Tethering A wireless technology standard for exchanging data over short distances. - Bluetooth

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

You have recently been given an older laptop to use for performing basic tasks such as sending emails and editing documents. However, when the display changes from one color to another, you notice that there is some distortion in the image. Which of the following LCD technology types is MOST likely being used for the LCD display?

Vertical alignment (VA)

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

From your Windows 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 laptop lid, 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, 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

You currently use the Exchange email client on your desktop PC. You use the Exchange email client to connect to an email server, which utilizes 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 you can accomplish this task?

You can configure the Mail app on an iPad to connect to an email server using the IMAP and SMTP protocols.

You have purchased a refurbished Windows laptop and have just plugged the power adapter into the wall socket to begin charging the battery. However, after several hours of charging, the laptop does not turn on. What is the MOST likely cause of the power issue?

You have been given the incorrect adapter.

You are removing the bezel from a laptop's LCD display screen. After several attempts to pry up the bezel and remove it, you have not separated the bezel from the case. Which of the following is the MOST likely reason for your inability to remove the bezel?

You missed a screw.