Lesson 8: Supporting Mobile Devices (CompTIA A+)

A user utilizing an external mouse complains that when typing on a laptop keyboard, the cursor slowly moves across the screen. What actions can the help desk perform to prevent this behavior from happening? (Select all that apply.) a. Adjust the sensitivity setting. b. Disable the touchpad. c. Update the driver. d. Replace the keyboard.

a. Adjust the sensitivity setting. b. Disable the touchpad. c. Update the driver.

An organization that does not support the autodiscovery feature for email servers is deploying new phones to its team. A user is configuring their email server on their new device. What options could the user enter in the incoming mail server field to implement a proper configuration? (Select all that apply.) a. FQDN b. IP address c. SMTP server address d. Ports

a. FQDN b. IP address

A company uses cell phones that do not have SIM cards and can only be managed by a specific network provider. The company wants to buy 3G cell phones that have SIM cards so they can switch to any chosen provider. What network type best suits the company's needs? a. GSM b. CDMA c. PRL d. LTE

a. GSM

A traveling user looks to purchase a smartphone that has a high tolerance for differing environments. This includes indoor and outdoor use. What ingress protection (IP) rating does the user look for when wanting to protect the device from solids as best as possible? a. IP67 b. IP57 c. IP58 d. IPX8

a. IP67

A user states that a mobile phone does not hold a very good charge. What might the cause be? (Select all that apply.) a. Improper battery charging b. Lack of power management c. An aging battery d. Broken digitizer

a. Improper battery charging b. Lack of power management c. An aging battery

A technician needs to replace a solid-state drive (SSD) in a user's laptop. The technician requested the purchasing department to order a drive that has higher bus speeds than other SSDs and fits into a PCI Express bus. Which drive type does the purchasing department order? a. M.2 b. mSATA c. SATA d. uSATA

a. M.2

A user's device allows them to bypass the screen lock using biometric authentication. Which of the following are biometric authentication methods the user can configure? (Select all that apply.) a. PIN b. Fingerprint reader c. Facial recognition d. Voice recognition

b. Fingerprint reader c. Facial recognition d. Voice recognition

A Windows-based laptop has an internal battery that requires tools to access and remove. What steps should a repair technician take prior to opening the laptop to install a replacement? (Select all that apply.) a. Discharge the battery. b. Power the laptop off. c. Disconnect the AC power. d. Charge the battery.

b. Power the laptop off c. Disconnect the AC power

A user notices that a smartphone is not functioning properly as internal diagnostics show a majority of the RAM being used continuously with certain applications. What symptoms should a technician look for? a. Power drain b. Resource usage c. Data usage d Malware activity

b. Resource usage

A network technician trains a new employee on the company devices they received during orientation. Which devices will have both a front and rear camera? (Select all that apply.) a. Digital camera b. Smartphone c. Tablet d. Webcam

b. Smartphone c. Tablet

A user would like to take advantage of biometric technology for a quicker and more secure login to a laptop. The user discovers the laptop has no built-in technology for biometrics. What solution does the IT department offer? a. Near-field scanner b. USB peripheral device c. Keyboard replacement d. Touchpad replacement

b. USB peripheral device

A warehouse user reports an issue with a laptop to the IT helpdesk. The issue is that the laptop becomes very hot after only a few minutes of use whether it is plugged in or not. The user states that laptop use is under the usual circumstances. What does IT conclude the likely problem to be? a. Faulty AC adapter b. Battery discharging c. Dust and debris d. Room temperature

c. Dust and debris

A network technician is working from a coffee shop and does not want to use their insecure wireless connection. What can the technician enable on his smartphone to provide his laptop with his own Wi-Fi connectivity? a. Airplane mode b. Cellular data networking c. Hotspot d. Bluetooth

c. Hotspot

A network technician is purchasing new displays for the graphics design team. Which type of thin-film transistor (TFT) will be optimal for supporting that type of work? a. TN b. Digitizer c. In-plane switching d. VA

c. In-plan switching

Enterprises use different deployment models to specify how they provision mobile devices and apps for employees. Which function of enterprise management allows the organization to perform remote wipes on devices? a. App store b. EMM c. MDM d. MAM

c. MDM

A technician plans a memory upgrade for a fleet of computers for sales users. When evaluating the various types of memory modules, what module types are commonly used for ultraportable laptops? (Select all that apply.) a. DIMM b. SODIMM c. Mini-DIMM d. Micro-DIMM

c. Mini-DIMM d. Micro-DIMM

A non-tech savvy laptop user orders a new hard drive from a large online retailer to install in the laptop. When the drive arrives, the user discovers that it is physically too big to install. What size drive did the user order? a. 1.8 in. b. 9.5 mm c. 7 mm d. 3.5 in.

d. 3.5 in

A user purchased their first smartphone and wants to download useful apps to it. What must the user do before they can use the app store? a. Grant privileges. b. Synchronize between multiple devices. c. Autodiscover. d. Configure an account.

d. Configure an account

A mobile device user is traveling out of the area and left their device somewhere outside. The user wants to track where they last had their mobile device in order to retrace their steps and find the device. Which of the following options is the system that relies solely on satellite communication to pinpoint a device's location and help the user find their device? a. Geolocation b. Location Service c. Near Field Communication d. Global Positioning System

d. Global Positioning System

A user returned a new laptop to the helpdesk with complaints that the screen was too dark and that the desktop image they put on it burned into the display. What kind of display does the laptop have? a. Touch screen b. LED c. TFT d. OLED

d. OLED