Chapter 3. Mobile Device Network Connectivity and Application Support

What manual entry is required when connecting a mobile device to a hidden wireless network that does not broadcast its name?

The Service Set Identifier (SSID)

What wireless encryption standards should be prioritized when configuring a secure wireless connection or mobile hotspot?

WPA2 or WPA3

A user complains that their mobile device suddenly lost all cellular, Wi-Fi, and Bluetooth connectivity. What status setting should you check first?

Check if Airplane Mode was accidentally enabled

What primary wireless service is Airplane Mode specifically designed to disable to prevent interference?

Cellular network access

What is the provider-imposed limit on monthly data transmission that a technician should monitor when deploying mobile hotspots?

A data cap

What happens to a smartphone's internal Wi-Fi adapter capabilities when it is actively running a Mobile Hotspot?

The Wi-Fi client connection is automatically disabled (the device switches entirely to cellular data to share the connection)

What is the official 5-step CompTIA process for configuring a Bluetooth connection?

1. Enable Bluetooth

2. Enable pairing

3. Find a device for pairing

4. Enter the PIN code

5. Test connectivity

What is the default PIN code often used by legacy or simple Bluetooth accessories during the pairing process?

0000

What is the difference between "unpairing" and "forgetting" a Bluetooth device in mobile settings?

Unpairing removes the active link but the system remembers the device; forgetting deletes the connection profile completely

Why must you disconnect or "forget" a Bluetooth accessory from its current host before attempting to link it to a new mobile device?

A Bluetooth accessory can typically only be connected to one host device at a time

What cloud service model category do web-based email applications like Gmail, MSN, and Microsoft 365 fall under?

Software as a Service (SaaS)

What are the first two basic troubleshooting steps a technician should take when a user cannot authenticate or load their mobile email?

Verify that the username/password are spelled correctly (no typos from the touchscreen) and confirm the device has an active internet connection

What is the default secure port number for receiving email over POP3 using SSL/TLS encryption?

995

What is the default secure port number for sending email over SMTP using SSL/TLS encryption?

465

What are the default unencrypted and secure (SSL/TLS) port numbers for SMTP?

Unencrypted: 25 (or 587); Secure: 465

What are the default unencrypted and secure (SSL/TLS) port numbers for POP3?

Unencrypted: 110; Secure: 995

What are the default unencrypted and secure (SSL/TLS) port numbers for IMAP?

Unencrypted: 143; Secure: 993

What secure protocol is used to provide digital signatures and encryption for email message integrity and authentication?

S/MIME

What is the maximum theoretical data transfer rate supported by the 5G cellular standard?

20 Gbps

What high-frequency spectrum band does 5G utilize to achieve ultra-high speeds, which requires a dense grid of small cell base stations?

millimeter wave (mmWave)

A user's older mobile device is experiencing poor connection to cell towers. What cellular-specific firmware update should you apply?

Baseband update (Radio firmware)

Where are a user's mobile account number, IMSI, and carrier configuration files physically stored on a phone?

SIM (Subscriber Identity Module) card

How does an eSIM differ physically and operationally from a standard SIM card?

An eSIM is permanently embedded in the device, requires no physical card swap, and is activated remotely by the carrier

What setting or service on a mobile device should a user disable to prevent metadata containing geographic coordinates from being attached to photos and videos?

Geotagging (Location Services)

What location-based technology uses GPS, Wi-Fi, or cellular data to define a virtual boundary around a physical location, allowing organizations to control device policies based on geographic area?

Geofencing

Why might a technician deploy a dedicated GPS system in a commercial vehicle rather than relying on a smartphone's GPS app?

To free up the smartphone’s CPU, prevent performance lag, and ensure highly accurate, dedicated navigation tracking

What is required to troubleshoot connectivity issues with wired in-vehicle integration systems like Apple CarPlay or Android Auto?

Ensure vehicle firmware is updated, update the phone's OS/connectivity software, and use a high-quality physical USB cable

What radio-based technique uses signal strength and multiple cellular towers (multilateration) to triangulate a mobile device's physical location?

Cellular location (triangulation)

What is the primary difference between an IMEI and an IMSI?

IMEI (International Mobile Equipment Identity) uniquely identifies the physical hardware/device; IMSI (International Mobile Subscriber Identity) uniquely identifies the user/subscriber and is stored on the SIM card

What are the primary benefits of synchronizing mobile device data to a local computer or cloud-based storage system?

Ensures data redundancy, provides additional storage capacity, and allows quick recovery of personal data if the physical device is lost or stolen

What is the core difference between data synchronization and a standard data backup?

Data synchronization keeps files updated and accessible in real-time across multiple devices; a data backup is a separate, one-way copy of local settings, apps, and history stored for disaster recovery

A user connects their mobile device to a Windows PC via USB to copy files, but the phone only charges and does not show up in File Explorer. What must be changed on the mobile device?

The USB connection settings must be changed from "Charging" to "File Transfer" (or MTP)

What synchronization protocol is commonly used to sync corporate email, contacts, and calendars from a Microsoft Exchange Server to various mobile operating systems?

Exchange ActiveSync (EAS)

What software utility must be installed on a Windows PC to physically synchronize contacts, calendars, and backup data with an Apple iOS device?

iTunes for Windows (or the Apple Devices app)

What is the name of the centralized software solution used by IT administrators to monitor, configure, update, and physically secure a fleet of remote mobile devices?

Mobile Device Management (MDM)

What is the core difference between Mobile Device Management (MDM) and Mobile Application Management (MAM)?

MDM manages and secures the entire operating system and hardware of a device, while MAM specifically controls and secures individual corporate applications

What insecure practice describes downloading and installing third-party mobile applications from unofficial sources outside of the platform's official app store?

Sideloading

What corporate policy allows employees to use their personally owned smartphones and laptops to access company network resources?

Bring Your Own Device (BYOD)

What mobile deployment model allows employees to choose their preferred mobile device from a pre-approved list of company-provided options?

Choose Your Own Device (CYOD)

What mobile deployment model involves the organization purchasing and owning the devices, but allowing employees to use them for personal tasks?

Corporate-Owned, Personally Enabled (COPE)