CompTIA A+ Certification Core 2 (220-1102) - Maintaining Mobile Devices

The video tutorial covers maintenance and updates for Apple and Android devices, focusing on the differences between CDMA and GSM phones. It explains the importance of firmware updates, PRL and PRI updates for CDMA phones, and the update processes for GSM phones. The tutorial also discusses the significance of IMI and IMEI numbers, setting up VPNs, remote backups, and the use of antivirus and firewalls on mobile devices.

What is a key difference between GSM and CDMA phones?

• GSM phones require more frequent updates.

• CDMA phones are more common in Europe.

• GSM phones use SIM cards, while CDMA phones do not.

• CDMA phones are only used in Asia.

What is the primary purpose of firmware updates on CDMA phones?

• To maintain the phone's connectivity and performance.

• To change the phone's color settings.

• To install new applications.

• To update the phone's hardware components.

What is the PRL in CDMA phones?

• Preferred Roaming List

• Primary Radio Link

• Phone Reset Log

• Personal Reference List

How do GSM phones typically handle software updates?

• Updates are only available through a computer.

• They do not receive updates.

• Updates are automatically sent to the phone.

• They require manual updates only.

What does the IMEI number represent?

• The user's subscription details.

• The phone's unique identity.

• The phone's software version.

• The phone's battery status.

What is the role of the IMI number?

• It identifies the phone's hardware.

• It provides the user's subscription information.

• It tracks the phone's location.

• It is used for software updates.

What is essential for setting up a VPN on a mobile device?

• The server's IP address.

• The user's email address.

• The phone's IMEI number.

• The phone's battery level.

Why is it generally unnecessary to install antivirus software on iOS devices?

• Apple's store has strict controls that minimize malware risk.

• Antivirus software is incompatible with iOS.

• iOS devices have built-in antivirus software.

• iOS devices cannot connect to the internet.

What is a potential risk when installing apps from outside the Android store?

• The app could contain malware.

• The app will not update automatically.

• The app will drain the battery faster.

• The app may not function properly.

What is the main advantage of using host-based firewalls on Android devices?

• They increase internet speed.

• They enhance device security.

• They improve battery life.

• They allow for more app installations.