Mobile Devices in the new CompTIA A+ exams (Part 1 of 2)October 10, 2012 at 4:36 pm | Posted in CompTIA, Study hints | Leave a comment
Tags: a+, mobile devices, Study hints, study resources
Last month, I posted an article about the virtualization topics in the new A+ exams. At that time, I indicated that I would be posting about the new mobile devices topics. I expected to get the two articles out within a few weeks of each other, but as it always seems to happen around here, other things took precedence….and a month later, I am finally sitting down to fulfill my promise.
Mobile devices have increasingly become part of our lives. Because of the popularity of these devices and our dependence on them, the CompTIA A+ certification now includes mobile device topics to ensure that A+ technicians are proficient in certain aspects of mobile device management. The new A+ 220-802 exam has an entire domain that is dedicated to mobile devices. Domain 3, the Mobile Device domain, makes up 9% of the exam. The objectives from Domain 3 are as follows:
3.1 Explain the basic features of mobile operating systems.
3.2 Establish basic network connectivity and configure email.
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.
There’s a lot to chew on here, so let’s focus on the first two of these objectives. (I will discuss the other three in a coming post.) Please remember that I’m writing based on my experience with mobile devices and on what I’ve read in several reference books. As of this posting, I have not actually taken the new A+ exams. CompTIA released those exams this week, so I’ll hopefully have some time to take them before Part 2 of this blog post! But since I’ve been writing study material for the A+ exams since the 300-level A+, I am fairly confident that I won’t be too far off the mark.
For Obj 3.1: Explain the basic features of mobile operating systems, you will need to understand the features of the Android and iOS mobile operating systems.
- Android is an open-source operating system, while the Apple iOS is a vendor-specific OS.
- Developers for Android have access to the same APIs used by the operating system. Developers for Apple must use the software development kit (SDK) and must be registered as Apple developers.
- Android apps are purchased from the Google Android market (now called Google Play) or from other Android app sites, while Apple apps can only be purchased from the Apple App store.
- For screen orientation, mobile devices use an accelerometer and/or a gyroscope. While only one of these is required, many newer mobile devices use both because they work better together.
- Touch-screen mobile devices require screen calibration. The screen calibration tool will require you to touch the screen in different ways so that the mobile device can learn how you will touch the screen. If the device does not react in an expected manner when you touch the screen, it may need re-calibration.
- GPS information can be obtained from cell phone towers or from satellites. Keep in mind that keeping the GPS function enabled will cause the battery to be depleted much quicker. Android phones normally use satellites to obtain GPS data, while iPhones use a combination of satellites, cell phone towers, and WiFi towers to obtain GPS data.
- Geotracking allows a mobile device to periodically record location information and transmit this information to a centralized server. Consumers have recently raised privacy concerns overs this feature.
For Obj 3.2: Establish basic network connectivity and configure email, you will need to understand how to connect mobile devices to networks and how to configure email on mobile devices. For all of the following points, I would expect this to focus mainly on the two major smart phones (iPhone and Android), but wouldn’t be surprised if you are expected to know how to do this for the iPad and other tablets.
- Enable/disable the wireless and cellular data network.
- Understand Bluetooth configuration, including enabling/disabling Bluetooth, enabling device pairing, finding devices for pairing (including entering the PIN code), and testing Bluetooth connectivity.
- Configure email. You will need to know the URL of the incoming and outgoing email server, the port numbers used by these servers, and the encryption type (if applicable). You probably will also need to know your account details, including user name, password, and domain name. The process for setting up email will vary slightly based on the mobile device that you are configuring and the type of account. Some of the more popular mail services, such as Exchange and Gmail, are easier to set up because of configuration wizards.
To fully prepare for these objectives, it may be necessary to install a mobile phone emulator on your computer if you do not have access to a physical mobile phone. In many cases, there are free mobile phone emulators available so that you can learn how to perform many of the basic configuration steps. You may want to research the options that are available and install them in a lab environment, particularly if you are an instructor. These emulators can provide a valuable service to students who do not have experience with mobile devices.
Part 2 of this topic will be released in the coming days and will cover the other three Mobile Devices objectives in the 220-802 exam. I also plan to have a post in the coming months on mobile phone emulators, so feel free to send me any information on what you have found in this area.