CompTIA A+ 220-1101 Domain 1: Mobile Devices

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 (Continuous Glucose Monitoring) - Fingertip EKG (Electrocardiogram)

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 they use to add this display device? (Select two.)

- DisplayPort using a DisplayPort-to-HDMI cable. - USB port using a USB-to-HDMI adapter.

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 an ExpressCard wireless network card. - Insert a wireless USB network card.

Which of the following display technologies require backlighting? (Select two.)

- LCD - LED

Which of the following is true of modern LCD monitors in regards to backlighting?

- LEDs are used to backlight the screen.

Which of the following are considered input devices? (Select three.)

- Microphone - Scanner - Keyboard

Which of the following are considered computer hardware? (Select two.)

- Motherboard - Printer

You are a technician for a company. Additional funds have been allocated to the sales department, and they have asked you to upgrade the memory modules in each employee's notebook computer. Which of the following are the MOST common methods to access these memory slots? (Select two.)

- Remove the keyboard. - Open a panel on the bottom of the notebook.

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

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

What are the disadvantages of plasma display technology? (Select two.)

- The gasses inside the cells are sensitive to air pressure fluctuations. - They generate much more heat than other display types.

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

- Wi-Fi antenna wires - Microphone - Webcam

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

Which feature makes it possible to close some notebook computers and still use the touchscreen?

180-degree rotating touchscreen

You need to replace the hard disk in your laptop computer. Which of the following hard drive sizes should you choose for the laptop?

2.5"

Ida, one of the employees in the sales department, needs a way to display her PowerPoint sales presentation to a large group of potential customers. She has asked you to set up the conference room in preparation for her presentation. You will need to purchase a display system for the conference room. Which of the following display systems would be the BEST to purchase?

A large screen and a projector

You are a technician tasked with replacing the processor in a client's laptop. The laptop has been experiencing overheating issues and the client suspects the processor might be the cause. After opening the laptop, you notice that the processor is soldered onto the motherboard. What which of the following would be the BEST next step?

Advise the client to purchase a new laptop.

As a technician, you have been tasked with increasing the RAM memory on a laptop by adding a SO-DIMM module to an empty memory slot. Which of the following processes seats 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.

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 that you are working with?

An LCD display that uses CCFL (Cold Cathode Fluorescent Lamp) backlighting.

Which of the following devices would you add to a computer if you needed to take inventory at a retail store by scanning the UPC symbols on products?

Bar code reader

Which of the following devices authenticates users based on their physical features?

Biometric scanner

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

In order to edit print server properties in Windows 11, which section do you need to select from the Settings menu?

Bluetooth & devices

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

Capacitive touchscreen

You work as the IT administrator for a small news station. Jill, an employee in Building 2, works in the audio-video editing department and would like to increase her productivity. For example, she would like to be able to run multiple programs simultaneously and be able to compare video clips side by side. Which of the following configuration changes would provide the BEST solution for Jill?

Configure Jill's computer with dual monitors.

Which of the following terms describes the difference between white and black in an LCD monitor?

Contrast ratio

You have just set up a food truck business, and you need to find a device that allows you to accept credit card and debit card payments through your smartphone. Which of the following devices do you need?

Credit card reader

You are in charge of putting together the display design for a new conference center at your organization. The conference center will be in a large auditorium with 500 or more seats. Which of the following technologies will provide a large display for such a group and also provide very high resolutions?

DLP projector

Which of the following input devices uses a stylus?

Digitizer

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 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.

Which function is commonly associated with the following icon?

GPS (on/off)

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 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.

Why are plasma displays smaller than 32 inches not typically sold?

It's too cost-prohibitive to manufacture plasma screens under 32 inches.

Which of the following display technologies suffer from motion blur?

LCD Projector

You are putting together a system for a graphic artist and need to make sure that you find a display that meets their needs. The display needs to have very good color reproduction quality and viewing angles. The display also needs to have proper cooling and be power-efficient. Which of the following display types will MOST likely meet these needs?

LCD display with IPS (In-Plane Switching) panel.

You are putting together a gaming system and need to make sure that you find a display that meets your needs. The display needs to have a very good response time, and you would prefer that it be affordable and power-efficient. Which of the following display types will MOST likely meet these needs?

LCD display with TN (Twisted Nematic) panel.

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.

Which of the following battery types is the MOST expensive?

Lithium Ion (Li-Ion)

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

Lithium Ion (Li-Ion)

Drag each computer function on the left with its associated hardware component on the right. (Each option may be used more than once.)

Long-term memory: - hard disk - DVD-RW Processing: - CPU - RAM Input: - Keyboard - Microphone Output: - Printer - Speakers

Which of the following is a 172-pin DIMM that is 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

Which of the following connectivity technologies allows you to tap your credit card rather than swipe it or insert it into a chip reader?

NFC (Near Field Communication)

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

Which of the following battery types has the greatest need to be completely drained before being recharged?

Nickel Cadmium (NiCad)

A company is purchasing new laptops for their graphic artist division. Which of the following display technologies provides better contrast and deeper blacks, resulting in better picture quality?

OLED (Organic Light-Emitting Diode)

Lloyd works for a graphic design company. His monitor recently failed, and you have been asked to purchase a new one for him. Lloyd would like a monitor with a fast pixel refresh rate, low energy consumption, and accurate color representation. Which of the following types of display devices will BEST meet the requested requirements?

OLED (Organic Light-Emitting Diode)

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 (Organic Light-Emitting Diode)

Which of the following is an extra button or knob on a laptop keyboard that moves the mouse cursor?

Pointing stick

A user wants to utilize her laptop to give a presentation on a video projector. She has called, asking you how to switch the display to the external monitor port on her laptop. Which of the following should you tell her?

Press and hold the fn key. Then press the monitor function key (with an image of a monitor on it).

Which computer function takes data through a series of procedures as defined by a set of instructions?

Processing

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 (Cold Cathode Fluorescent Lamp) 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.

Which of the following connects the internal laptop keyboard to the laptop's system board?

Ribbon cable

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 (Secure/Multipurpose Internet Mail Extensions)

Which function is commonly associate with the following icon?

Screen orientation

Which peripheral device is best for capturing a customer's signature when they check out at a convenience store or supermarket?

Signature pad

You need to replace a broken monitor on a desktop system. You decide to replace it with a spare monitor that wasn't being used. Even though the monitor is made by a different manufacturer than the desktop computer, it still works with the computer. Which computer design concept makes this possible?

Standardization

A technician is tasked with replacing an internal laptop hard drive. Which of the following hard drive standards is of MOST concern when selecting a replacement that is compatible with the laptop?

The hard drive's form factor

Match each LCD type with the corresponding benefit or characteristic.

The least expensive, thinnest, and most widely used type of LCD: - WLED Able to dim specific regions of the screen: - Full-array WLED Superior accuracy (most expensive type of backlighting technology): - RBG-LED Produces better colors than WLED (consumes more energy): - CCFL (Cold Cathode Fluorescent Lamps)

Match each type of mobile device on the left with the description on the right. (You can use a mobile device type more than once.)

This type of mobile device provides a high-contrast display, making it ideal for reading electronic newspapers in direct sunlight: - E-Reader This type of mobile device includes virtual reality headsets: - Wearable Device This type of mobile device often includes a stylus for precise drawing and control: - Tablet This type of mobile device most likely uses a 4G, 5G, or LTE connection: - Smartphone This type of mobile devices uses E Ink technology: - E-Reader

When a presenter at a conference connects a laptop to a projector, the projector mirrors the laptop's display. The presenter wants 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.

Which of the following is considered a computer input device?

Touchscreen

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

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

After replacing a laptop touchpad, a technician finds that the touchpad does not move the cursor. However, the attached USB mouse does. Which of the following actions should the technician perform before opening the laptop case to re-check the connection?

Unplug the USB mouse and re-check touchpad movements.

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 (Virtual Private Network)

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

Which of the following laptop features is specifically designed to facilitate online meetings, take still pictures, and record videos?

Webcam

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 (Internet Message Access Protocol) and SMTP (Simple Mail Transfer Protocol) protocols.

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.

Which of the following statements about cleaning LCD monitors and display devices is true?

You should power off your monitor and clean it with a lint-free dry cloth.

Which type of authentication would require a user fingerprint or facial recognition for a user to get past the screen lock on a mobile device and gain access?

biometrics

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

Jamie has been tasked with designing a solution for the paralegals in his office. They need to review old documents that are on paper files and create word processor documents from them that can be searched and cross-referenced. Which of the following devices should Jamie use to create the solution? (Select two.)

- Scanner - Digitizer

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 cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced. - The inverter in the LCD assembly has malfunctioned.

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 BEST meets these requirements?

A laptop docking station

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

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 purchased an external speaker to play music from your mobile phone over a wireless connection. Which of the following actions do you MOST likely need to perform to connect the speaker?

Enable pairing

A technician is tasked with replacing a Wi-Fi antenna in a laptop computer. Which of the following places is the antenna MOST likely to be located in?

Around the laptop's bezel

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

You are a trainer for your company and often teach courses in a classroom located on campus or in a hotel conference room. In your office, which is separate from the classroom, you have two external monitors connected to your laptop, and you are able to display different content on each monitor. However, when teaching, you only have your laptop and a projection unit. To make teaching easier, you want the same content to show on both the laptop monitor and the projection screen. Which of the following multiple display options would be BEST to select when you are teaching?

Duplicate these displays

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

Inverter

A new laptop was delivered to your home and left on the porch while you were at work. It is very cold outside, and you don't know how long it has been there. You unpack the laptop. You would like to know if it is working properly. Which of the following is the BEST action to take?

Let the laptop warm up to room temperature before turning it on.

You are a computer technician. A user reports that an older laptop is having trouble connecting with newer wireless networks. Which of the following actions should you consider as an alternative to replacing the laptop?

Replace the internal wireless card.

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)

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 (Near Field Communication) Provides mobile devices with access to network resources and software applications on a home network: - Mobile VPN (Virtual Private Network) Allows you to share a phone's internet connection with a laptop: - Tethering A wireless technology standard for exchanging data over short distances: - Bluetooth