Lesson 8: Supporting Mobile Devices - Practice Questions

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?

3.5 in. - A 3.5" disk drive is the traditional drive size that is used in desktop systems. These are magnetic drives.

A user complains that when typing on a laptop keyboard, the mouse cursor slowly moves across the screen. What actions can the help desk perform to prevent this mouse behavior from happening? (Select all that apply.)

Adjust the sensitivity setting. - On a laptop, if touchpad sensitivity is too high, typing can cause vibrations that move the cursor. A sensitivity setting can adjust mouse behavior. Disable the touchpad. - Although not ideal, the help desk can disable the touchpad either through software or a function key on the laptop. Update the driver. - It is possible that a driver update is required for the mouse to behave normally. Software drivers often fix glitches and provide updates to functionality.

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?

Configure an account. - The owner of a mobile device configures an account when they use the device for the first time. This account manages the apps installed on the device and represents the user on the app store.

A technician plans a memory upgrade for a fleet of laptops for sales users. As the laptops are ultraportable, which memory form factor is likely NOT correct? (Select all that apply.)

DIMM - A dynamic inline memory module (DIMM) is a memory form factor that is used in desktop systems. SODIMM - Laptop memory is packaged in small outline DIMMs (SODIMMs). A SODIMM is like a DIMM only it has a smaller form factor for laptop use rather than on a desktop.

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?

Dust and debris - Dust trapped in laptop cooling vents acts as an insulator and can prevent proper cooling. It can also slow or stop the fan. The vents are likely the issue due to the warehouse environment.

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 will the user enter in the incoming mail server field? (Select all that apply.)

FQDN - When configuring corporate email, the user will enter the fully qualified domain name (FQDN) or IP address of the Internet Mail Access Protocol (IMAP) or Post Office Protocol (POP3) server. IP address - When configuring corporate email, the user will enter the IP address or the FQDN of the Internet Mail Access Protocol (IMAP) or Post Office Protocol (POP3) server.

A user's smartphone 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.)

Fingerprint reader - A fingerprint reader is an example of an authentication mechanism that allows a user to perform a biometric scan to operate an entry or access system. Facial recognition - Facial recognition is a biometric authentication method stored as a digital data template, and a smartphone can use it to authenticate a user. Voice recognition - Voice recognition is a biometric authentication method that a user can configure. Other typical biometric methods include facial pattern, iris, retina, fingerprint pattern, and signature recognition.

A company uses cell phones that do not have SIM cards and that Verizon manages. The company wants to buy 3G cell phones that have SIM cards so they can switch to any chosen provider. In which network type does the company want to upgrade?

GSM - Global System for Mobile Communication (GSM) allows subscribers to use a removable subscriber identity module (SIM) card to use an unlocked handset with their chosen network provider.

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?

Global Positioning System - Global Positioning System (GPS) is a means of determining the device's latitude and longitude based on information received from orbital satellites via a GPS sensor.

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?

Hotspot - A hotspot is using the cellular data plan of a mobile device to provide internet access to a laptop or PC. A USB, Bluetooth, or Wi-Fi (a mobile hotspot) can tether the PC to the mobile device.

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?

IP67 - Some mobile-device cases provide a degree of waterproofing. Waterproofing is rated on the ingress protection (IP) scale. The first (6) is a rating for repelling solids. In this case, dustproof.

A user states that a mobile phone does not hold a very good charge. What might the cause be? (Select all that apply.)

Improper battery charging - An improper charging routine will reduce the usable life of a battery. Following manufacturer instructions on the proper charging and discharging of the battery is recommended. Lack of power management - Making use of power management features included with a device/OS to prolong battery life is a good practice. An aging battery - As batteries age, the maximum charge they can sustain decreases, so short battery life will usually indicate that the battery needs replacing.

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?

In-plane switching - In-plane switching (IPS) uses crystals that rotate rather than twist. The main benefit is to deliver better color reproduction at a wider range of viewing angles making it the best TFT option for graphics design work.

A technician needs to replace a solid-state disk (SSD) in a user's laptop. The technician requested the purchasing department to order a drive that fits into a PCI Express bus. Which drive type does the purchasing department order?

M.2 - An M.2 SSD usually interfaces with the PCI Express bus, allowing much higher bus speeds than SATA. M.2 adapters can be of different lengths.

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?

MDM - Mobile device management (MDM) sets device policies for authentication, feature use (camera and microphone), and connectivity. MDM can also allow device resets and remote wipes.

A user returned a new tablet 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 tablet have?

OLED - In an organic light-emitting diode (OLED) display, or technically an advanced matrix OLED (AMOLED), the panel does not require a separate backlight but the screen is darker and images burn into the screen easier.

A laptop has an internal battery that requires tools to access and remove. What step should a repair technician take prior to opening the laptop to install a replacement? (Select all that apply.)

Power the laptop off. - Before inserting or removing any battery pack, it is recommended and best to turn the machine off. This will prevent issues with the operating system and is a best practice for safety. Disconnect the AC power. - When working on a laptop to replace any physical component, it is recommended to unplug the laptop from the AC wall outlet for safety purposes.

A user notices that a smartphone is not functioning properly. Switching between applications takes an excessive amount of time. What symptoms should a technician look for?

Resource usage - Poorly coded apps and malware can cause high resource usage which potentially leads to overheating problems for a device.

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.)

Smartphone - Smartphones have both front-facing and rear-facing camera lenses, both of which can function either as a still camera or as a webcam for video recording and streaming. Tablet - Tablets have both front-facing and rear-facing camera lenses, both of which can function either as a still camera or as a webcam for video recording and streaming.

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?

USB peripheral device - If a laptop does not have an integrated fingerprint scanner, it is possible to obtain models that connect to a universal serial bus (USB) port. An external webcam may also be used.