220-1202 Mobile OS Features and Tools — 15 Questions

Question 1

A user's iPhone is running iOS 15 and they are unable to install a new app from the App Store. The error message says 'Unable to Download App. This app requires iOS 16 or later.' However, the user's iPhone model supports iOS 16. Which built-in iOS feature should the technician use to resolve this?

Accepted Answer

Update iOS via Settings > General > Software Update.. This question tests iOS update management. The correct answer is 'Software Update' in Settings > General, which allows the user to upgrade to iOS 16. The error indicates the app requires a newer OS version, and updating the OS is the standard solution.

Answer

Offload the app and reinstall it.

Answer

Clear the App Store cache by force-closing the app.

Answer

Perform a factory reset.

Question 2

During a security audit, a technician discovers that an employee's company-issued iPhone has been jailbroken. The employee claims they only did it to customize the home screen. Which security risk is most directly associated with a jailbroken device in a corporate environment?

Accepted Answer

It bypasses app sandbox restrictions, potentially exposing corporate data.. This question tests understanding of jailbreaking risks. The correct answer is that jailbreaking removes sandbox restrictions, allowing apps to access data from other apps, which can lead to data leakage. This is a primary concern for corporate devices handling sensitive information.

Answer

The device cannot receive iOS updates.

Answer

It voids the warranty.

Answer

The device will perform slower.

Question 3

A user is setting up a new Android tablet for a child and wants to restrict access to adult content, limit app purchases, and set screen time limits. Which built-in Android feature should the technician configure?

Accepted Answer

Google Family Link. This question covers Android parental controls. The correct answer is 'Google Family Link', a dedicated app and service that allows parents to manage app permissions, content filters, and screen time across Android devices. It is the standard tool for child safety on Android.

Answer

Guest Mode

Answer

Do Not Disturb

Answer

Developer Options

Question 4

A technician is tasked with deploying 50 Android tablets for a field sales team. The tablets need to have a consistent set of apps, settings, and security policies. The technician wants to avoid manually configuring each device. Which Android feature should the technician use?

Accepted Answer

Android Enterprise (Zero-Touch Enrollment). This question tests enterprise deployment tools. The correct answer is 'Android Enterprise' (formerly Android for Work), which supports zero-touch enrollment and managed configurations via a Mobile Device Management (MDM) system. This enables bulk provisioning without manual setup.

Answer

Samsung DeX

Answer

Google Backup

Answer

Developer Options > OEM Unlocking

Question 5

A technician is configuring an Android phone for a user who frequently travels internationally. The user wants to ensure that data roaming is disabled to avoid high charges, but still wants to receive calls and texts while abroad. Which setting should the technician configure?

Accepted Answer

Turn off Data Roaming in the mobile network settings.. This question tests Android connectivity settings. The correct answer is to disable 'Data Roaming' while keeping 'Roaming' enabled for voice and SMS. This allows calls and texts over partner networks without using mobile data, preventing unexpected charges.

Answer

Enable Airplane Mode and turn on Wi-Fi.

Answer

Disable Mobile Data entirely.

Answer

Set the network mode to 2G only.

Question 6

A customer reports that their Android phone's screen is unresponsive to touch after a drop. They can still hear notifications and see the display. Which built-in tool should you use to test the touchscreen functionality without relying on third-party apps?

Accepted Answer

Diagnostics Mode (e.g., *#0*#). This question tests knowledge of Android's built-in diagnostic tools. The correct answer is the 'Diagnostics' or 'Test' mode, often accessed via the dialer code or settings, which allows hardware testing without third-party apps. This is a standard feature for verifying touchscreen integrity after physical damage.

Answer

Safe Mode

Answer

Developer Options

Answer

Factory Reset

Question 7

A user on iOS 17 complains that their iPhone's battery drains quickly and the phone gets warm during normal use. They have not installed any new apps recently. Which built-in tool should you use first to identify the cause?

Accepted Answer

Settings > Battery > Battery Health. This question covers iOS battery management tools. The correct answer is the Battery Health feature, which shows maximum capacity and peak performance capability, and can indicate if the battery needs service. Checking this first helps rule out hardware degradation before troubleshooting software.

Answer

Settings > General > iPhone Storage

Answer

Settings > Privacy > Analytics & Improvements

Answer

Settings > Display & Brightness

Question 8

A technician is configuring a company-issued Android tablet for a kiosk mode in a retail store. The tablet must only run the store's inventory app and prevent users from accessing other apps or settings. Which built-in Android feature should the technician use?

Accepted Answer

Screen Pinning. This question tests knowledge of Android enterprise features. The correct answer is 'Screen Pinning', which locks the device to a single app and requires a PIN or password to exit. This is a native Android security feature ideal for kiosk scenarios without third-party software.

Answer

Guest Mode

Answer

Developer Options > Force GPU Rendering

Answer

Do Not Disturb

Question 9

A user reports that their iPhone's camera app crashes immediately after opening, but other camera-related apps (like Instagram) work fine. They have already restarted the phone. Which iOS feature should you use to restore camera functionality without losing personal data?

Accepted Answer

Offload App. This question tests iOS app-specific troubleshooting. The correct answer is 'Offload App', which removes the app but keeps its documents and data, allowing a fresh reinstall without data loss. This is ideal for fixing a corrupted app without a full restore.

Answer

Reset All Settings

Answer

Erase All Content and Settings

Answer

Update iOS

Question 10

A technician is troubleshooting an Android phone that cannot connect to Wi-Fi networks, even though other devices connect fine. The technician notices that the phone's MAC address is displayed as '02:00:00:00:00:00' in the Wi-Fi settings. Which feature is likely causing this, and how should it be resolved?

Accepted Answer

The phone has a randomized MAC address enabled; disable it for the network.. This question tests knowledge of Android's privacy features. The correct answer is 'Randomized MAC Address', a security feature that spoofs the MAC address per network. The displayed address suggests the randomization is active, and disabling it for the specific network or turning off 'Use randomized MAC' can resolve connectivity issues.

Answer

The phone is using a static IP configuration; change it to DHCP.

Answer

The Wi-Fi hardware is faulty; the phone needs repair.

Answer

The phone is in Airplane Mode; turn it off.

Question 11

A small business deploys 20 Android tablets for inventory management. The tablets must remain in a single app (the inventory app) and prevent users from accessing settings or other apps. Which Android feature should you enable to lock the devices into this single-app mode?

Accepted Answer

Use the Screen Pinning feature in Security settings.. Android's Screen Pinning feature allows you to lock the device to a single app, requiring a PIN or password to exit. This is ideal for kiosk-style deployments. Guest Mode and Multi-User Mode do not restrict app access, and Factory Reset Protection is a security feature for lost devices.

Answer

Enable Guest Mode from the user switcher.

Answer

Set up a separate user account with restricted profile.

Answer

Activate Factory Reset Protection (FRP).

Question 12

A user reports that their Android phone's screen is flickering and the touch response is erratic after they dropped it. They have already tried a reboot. Which built-in diagnostic tool should you use to test the touchscreen and display functionality without any third-party apps?

Accepted Answer

Open the phone dialer and enter the hardware test code (e.g., *#0*#).. Android includes a hidden 'Diagnostics' or 'Hardware Test' mode (often accessed via a code like *#0*# on Samsung devices) that allows you to test individual hardware components including the touchscreen, display colors, and sensors. The Developer Options 'Show taps' only visualizes touches but does not run a systematic test. Safe Mode only disables third-party apps, and a factory reset is too drastic.

Answer

Boot the device into Safe Mode to see if the issue persists.

Answer

Enable 'Show taps' in Developer Options.

Answer

Perform a factory reset from Recovery Mode.

Question 13

A technician is troubleshooting an Android device that is unable to connect to a corporate Wi-Fi network using WPA2-Enterprise with a username and password. The device connects successfully to other open Wi-Fi networks. Which Android setting should the technician check first to resolve the authentication failure?

Accepted Answer

Check if a CA certificate is installed and selected in the Wi-Fi network's advanced settings.. For WPA2-Enterprise networks, Android often requires the user to install and trust a CA certificate for server validation. If the certificate is missing or untrusted, the connection will fail. The technician should check the Wi-Fi advanced settings for the network and ensure that the correct CA certificate is selected, or that the option to not validate the server certificate is enabled (though less secure). IP settings and proxy configurations are unrelated to authentication, and MAC filtering is a network-side issue.

Answer

Verify that the device's IP address is set to DHCP.

Answer

Disable the proxy settings for that Wi-Fi network.

Answer

Configure a static MAC address on the device.

Question 14

A user reports that their Android phone is running slowly and the battery drains quickly. They have many apps installed. Which built-in Android feature should you use to identify and stop a misbehaving app that is consuming excessive CPU and battery resources?

Accepted Answer

Check the Battery Usage menu in Settings to see which app is using the most power.. The correct answer is the Battery Usage tool, which is a standard Android feature that breaks down power consumption by app and system services. This allows a technician to pinpoint which app is causing excessive drain and then force stop or uninstall it. Task Killers are not recommended, and a factory reset is too drastic for this issue.

Answer

Use a third-party Task Killer app to automatically close background processes.

Answer

Perform a factory reset from the Recovery Mode menu.

Answer

Enable Developer Options and increase the background process limit.

Question 15

A technician is configuring a company-issued Android phone for a new employee. The employee will use the phone for both work (email, calendar) and personal activities. The company requires that work data be securely containerized and managed without affecting the employee's personal apps. Which Android feature should the technician enable?

Accepted Answer

Enable the Work Profile via the device's Settings under Accounts.. Android's Work Profile (part of Android Enterprise) creates a separate, managed profile on the device for work apps and data. This allows IT to enforce policies (like encryption and remote wipe) on the work profile without affecting the personal profile. Multi-User mode is for separate users, not a single user with two contexts, and Screen Pinning is for single-app lockdown.

Answer

Set up a separate User account for work.

Answer

Use Screen Pinning to lock the device to the email app.

Answer

Install a third-party MDM agent only.