Testout chapter 12.4 Mobile devices

You want to be able to use a high-quality, noise-cancelling headset with your mobile phone to make conference calls and to listen to music. However, your new mobile phone does not have an earphone jack. Which of the following technologies allows you to wirelessly connect your headset to your new phone? Answer USB MicroSD Bluetooth Docking station

Bluetooth Bluetooth is a wireless technology that is widely used to connect mobile phone accessories (such as headsets and earbuds) to a phone. USB requires a cable and a port on your mobile phone. USB is not a wireless technology. Docking Station (or port replicator) to provide a desktop experience for your laptop computer. MicroSD is a type of memory card that can expand the memory storage in your mobile phon

Bluetooth

Bluetooth is a low-power, short-distance wireless technology. It supports a 10-meter radius for connectivity and is usually used for multimedia. Often users use Bluetooth with earbuds, headphones, and speakers. Bluetooth is also used to connect printers wirelessly. Bluetooth requires devices be paired before they can be used.

Android Package (APK)

The package file format used by the Android operating system for the distribution and installation of mobile apps and middleware.

The human resources department wants to give gifts away at the company's summer party. They would like to have an assortment of fitness tracker wristbands, smartwatches, smart glasses, and virtual reality headsets. They have been trying to locate these on the internet, but have been unsuccessful. Which of the following types of mobile devices should you tell them to search for? Answer Wearable devices Tablets E-readers Smartphones

Wearable devices

Preferred Roaming List (PRL)

A database residing in a wireless device that contains information used during the system selection and acquisition process.

Gyroscope

A feature that measures the vertical and horizontal orientation of the device.

Software development kit (SDK)

A set of software development tools that allows the creation of applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar development platform.

Primary Rate Interface (PRI)

A telecommunications interface standard used on an Integrated Services Digital Network (ISDN) to carry multiple Digital Signal 0 (DS0) voice and data transmissions between the network and a user.

Accelerometer

A tool to detect the physical movements of a tablet by measuring its linear acceleration in one dimension.

International mobile subscriber identity (IMSI)

A unique identifier that defines a subscriber in the wireless world, including the country and mobile network to which the subscriber belongs. The IMSI is one of the pieces of information stored on a SIM card.

International Mobile Equipment Identity (IMEI)

A unique number given to each mobile phone. The number is typically found behind the battery.

Global Positioning System (GPS)

A space-based navigation system that provides location and time information in all weather conditions anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

Hotspot

Many smartphones can enable a hotspot feature. This feature allows the user to turn the smartphone into a WiFi hotspot. The smartphone uses its cellular connection to the internet and provides a WiFi host allowing WiFi enabled devices to connect and use the smartphone's internet connection. This is useful for any mobile device that does not have direct access to the internet. Several cellular providers offer devices specifically designed to do this; however, providing a hotspot is their only function. These devices generally sell for a fraction the cost of a mobile phone.

Universal Serial Bus (USB)

Universal Serial Bus (USB) is the most predominant connection type and the most versatile for mobile devices. USB is used to connect most external devices to a PC or tablet. There are different versions of USB: USB v2.0—used to connect keyboards, mice, printers, flash drives etc. USB v3.0—the same as v2.0, but faster. It introduced new type B connectors. USB-C—a newer technology with different connectivity. It is used for all external devices including displays and Ethernet adapters.

You have just purchased a smart watch to track your fitness statistics and health. To change the interface or update the firmware, you need to use an app on your smartphone. Which of the following connection technologies will you MOST likely use to communicate between your watch and the app? Answer: Bluetooth USB cable Wi-Fi E Ink

Bluetooth

Which of the following medical devices utilize Bluetooth or Wi-Fi technology to communicate with a mobile phone? (Select two.) Answer CGM Trackpad MicroSD USB-C Fingertip EKG

CGM Fingertip EKG Mobile phones are now used with medical technology. Devices utilize Bluetooth or Wi-Fi technology to communicate with a fingertip EKG (fingertip electrocadiogram) or CGM (continuous glucose monitoring) for diabetic patients. A microSD card is a memory card that is often used in mobile phones. USB-C is a type of USB cable connector. Trackpad is a small square below the keyboard on a laptop that allows you to move your finger in order to move the mouse.

Which of the following components allows a tablet to provide a screen interface that recognizes multiple finger touches at the same time? Answer Capacitive touchscreen E Ink OLED display Bluetooth

Capacitive touchscreen Capacitive touchscreens provide multi-touch or gestures, which allow a tablet to recognize multiple finger touches at the same time. Bluetooth is a wireless technology that allows the exchange of data between different mobile devices. E Ink is a special technology that creates a high-contrast, black and white display on an E-reader. OLED (organic light-emitting diode) is a type of display where each pixel is made of a material that glows when it receives an electric pulse. OLED utilizes a touch panel to provide interaction with your fingers. By itself, it does not provide touch capability.

Serial interfaces

Devices that use a serial interface include computers, routers, and switches. Serial allows devices to communicate via a stream of binary digits. There may be control signals embedded in the stream to mark the beginning or end of characters or to enable parity. Many serial connectors are a 9 pin D connector. However, some use a proprietary connector that has a specific use.While no longer widely used, serial communication was used to connect external serial devices to computers.These devices included printers, modems, scanners, and other serial devices.

You have recently been hired by a course development company to develop online simulations, and you have been given permission to work at home. The company has given you a laptop computer, two external displays, and a wireless mouse and keyboard. However, you also want to connect several of your own personal devices to the laptop, including a printer, headset, webcam, a third external display, and a drawing pad. You also want to be able to boot your laptop with all these devices without opening up the laptop. Which of the following items should you request from your company to help connect all these devices in the EASIEST and most EFFECTIVE way possible? Answer: CGM device Port replicator Bluetooth accessibility Docking station

Docking station At home or in the office, you may want a desktop experience with a full-sized keyboard, mouse, and multiple displays. You may also want to connect multiple wired devices. A docking station maintains these permanent connections and provides a dock for the laptop, making it the easiest and most effective way to provide the work experience you need. A Port Replicator can provide similar connectivity, it is a much simpler device that normally plugs into an available USB port. Also, a docking station does not provide a way to turn on all these devices without opening up the laptop to boot the system. Bluetooth is a wireless technology that is widely used to connect mobile phone or laptop accessories (such as headsets and earbuds) to a phone. Bluetooth is not designed to connect wired accessories to a laptop. A CGM (continuous glucose monitoring) device is used by medical professionals to monitor the glucose levels in diabetic patients.

When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright for the user. Which of the following technologies detects this movement on a mobile device? (Select two.) Geotracking GPS Gyroscope Accelerometer Wi-Fi

Gyroscope Accelerometer There are two technologies that mobile operating systems use to detect device movement. They are accelerometers and gyroscopes. GPS can detect lateral device movements, but not screen orientation movements. Wi-Fi is used for network connections. Geotracking determines the location of a mobile device by obtaining its GPS data.

Which of the following mobile connection types can enable other mobile devices to connect to the internet? Answer NFC Hotspot USB Bluetooth

Hotspot

Which of the following MOST accurately describes a touch pen? Answer Works well for high-quality digital drawings. Does not contain electronics. Includes a soft rubber tip at the end. Includes features such as tilt and pressure sensitivity.

Includes features such as tilt and pressure sensitivity. A touch pen, or digital pen, is a specific type of pen that usually includes finer abilities, such as tilt and pressure sensitivity. A touch pen allows users to become more creative with their drawings and writing. Unlike a touch pen, a stylus usually does not contain electronics. Most styluses have a soft rubber tip on the end. Although you can use a touch pen to create basic digital drawings, most professionals use a drawing pad to achieve high-quality digital drawings

Near-field communications (NFC)

NFC is a newer wireless technology. It is mostly used with credit cards allowing the user to tap the credit card rather than swipe it or insert it into the chip reader.It can also be used to transfer data between mobile devices. NFC's wireless range is less than one inch and uses very little power.

Universal Serial Bus (USB) connection types

USB has three connection types: The A connector is generally used to plug into the mobile device. The B connector is generally used to plug into the external device. It includes:Standard—older connector used mainly to connect to external hard drives and printers.MiniUSB—smaller version of USB connector used for connections as well as charging external devices.MicroUSB—same as MiniUSB, but smaller.Standard 3.0—dual connection, top and bottom, allowing for higher throughput on capable devices.MicroUSB 3.0—dual connection, side-to-side. It has the same connectivity as Standard 3.0. The C connector is used for connecting external devices including displays and Ethernet adapters.It may use type A or C to plug into mobile devices.It uses type C to plug into external devices.

You've just purchased an Ethernet adapter for your Android tablet. Which of the following USB connector types would you MOST likely use to plug in to the adapter? Answer USB-C connector USB-B connector Serial connector USB-A connector

USB-C connector A USB-C connector is normally used for connecting external devices, including displays and Ethernet adapters. A USB-A connector is generally used to plug in to the mobile device itself (such as the Android tablet). A USB-B connector is used to plug in to external devices, such as hard drives and printers. A serial connector is an older type of connection often used for computers, routers, and switches. It is not a USB connector type.