Mobile Devices in the new CompTIA A+ exams (Part 2 of 2)

October 26, 2012 at 2:39 pm | Posted in CompTIA | Leave a comment
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Well, it’s been two weeks since I introduced you to the Mobile Devices domain in the new A+ 220-802 exam. In that post, I gave information on the first two objectives in the Mobile Devices domain. In this post, I want to finish by discussing the last three objectives from the domain:

3.3 Compare and contrast methods for securing mobile devices.
3.4 Compare and contrast hardware differences in regards to tablets and laptops.
3.5 Execute and configure mobile device synchronization.

For objective 3.3: Compare and contrast methods for securing mobile devices, the main focus is mobile device security. The main points that you should concern yourself with are as follows:

  • Passcode locks – This is the most basic security measure. Passcode locks block unauthorized users from accessing any of the device’s functions. In Android phones, this is configured in the Settings Location & Security section. In iOS-based devices, it is configured in the Settings – General section.
  • Locator applications – This security measure uses the GPS feature to locate a lost or stolen mobile device. For iPhones, you would enable the Find My iPhone feature. For Android devices, you can use a number of third-party security applications (such as Android Lost, AVG Antivirus, or Lookout) to remotely locate a phone.
  • Remote wipes – This security measure ensures that all data on the mobile device can be erased if the mobile device is lost or stolen. For iPhones, there is an iCloud feature (available in iOS 5) that allows the Remote Wipe feature. Google Apps administrators can perform this function with Google Sync (in beta, as of this writing). Most third-party Android security apps will have the option to locate, lock, or remotely wipe the device.
  • Remote backup applications – This functionality allows all data and applications to be backed up to ensure that the data could be restored if the mobile device is lost or stolen. For iPhones, backups are managed by the iTunes application. For Android devices, you will need to download an application that provides this functionality.
  • Failed login attempts restrictions – This security feature will lock a device after the configured number of failed login attempts. For iPhones, the lock occurs by default after 6 failed attempts and erases the data after 10 failed attempts. For Android devices, this feature is not built in, so you will need to add an application to provide this functionality. Most mobile devices also let you wipe the device contents after the configured number of failed logins.
  • Antivirus – Because mobile devices can be corrupted by malware, you should install an anti-malware application. Desktop antivirus vendors, like McAfee and AVG, also have products designed for mobile devices. Keep in mind that the product must be regularly updated to protect against the latest malware and virus threats.
  • Patching/OS updates – Patching the operating system and applications is necessary for all mobile devices. Most mobile devices have a built-in function that will notify you periodically when updates are detected. Make sure your device is updated so that all the latest security patches are installed, because security patches are the most common type of update.

For objective 3.4: Compare and contrast hardware differences in regards to tablets and laptops, you need to understand the hardware that is used in a mobile device and how it typically compares to laptop hardware.

  • You should keep in mind that most mobile devices do NOT have field-serviceable parts. Specialized tools are needed to replace any mobile device hardware, including the screen and internal parts. Repairs should only be carried out by technicians who are properly trained. If you have a device repaired by a technician that is not backed by the vendor, the warranty will be voided.
  • Also, keep in mind that mobile devices typically cannot be upgraded. Therefore, you should purchase the device that provides the maximum level of hardware for your current and future needs.
  • Most mobile devices are touch screen devices, which uses two technologies: touch flow or multitouch. With touch flow, finger movement (up, down, left, right) controls how the screen scrolls. With multitouch, the screen will recognize multiple touches, which means that more than one finger can work with the interface at the same time.
  • Mobile devices typically use solid-state drives, which are lighter and less prone to crashes.

For objective 3.5: Execute and configure mobile device synchronization, you need to understand how to sync your mobile device. This includes understanding the type of data that will need to be synced, the software requirements to install the syncing application on your desktop computer or laptop, and the connection types that can be used with synchronization. Users will need to be able to sync contact information, applications, e-mail, pictures, music, and videos.

  • Push synchronization is automatic and requires no user effort. Any change made will be synced to the other devices at regular intervals that you configure. (Remember that push synchronization can consume battery so use a longer schedule time if battery consumption is a concern.)
  • Pull synchronization, on the other hand, requires the user to actually activate the synchronization, which then pulls new information from the other device.
  • Synchronization can occur via a direct USB connection between devices, over a Bluetooth connection between the devices, and even over a 802.11 wireless network. Some specialized synchronization applications even allow you to use the Internet for synchronization.

While most mobile devices have a built-in sync feature, applications available through the marketplace usually do a much better job and include many more options. If you purchase a synchronization application, make sure that your mobile device meets the application’s requirements.

In closing, I hope these two Mobile Devices posts have helped to shed a bit of light on just where CompTIA is going with this topic. I have to say that I am glad to see this topic included as part of an IT technician’s job analysis. As mobile devices gain in popularity, technicians will definitely be expected to understand how to configure mobile devices in the real world.

I’ll be taking the 220-801 and 220-802 exams this week. I am really looking forward to seeing how the exams have changed, and assessing the new mobile device coverage and performance-type items.

Watch for my post in the coming weeks where I review Mike Meyer’s Eighth Edition of the CompTIA A+ Certification All-in-One Guide. I’ll also be posting some ideas about mobile phone emulators to help in labs and classrooms, and to help students self-study for the new mobile device topic coverage on the 220-802.

– Robin Abernathy

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