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This chapter is from the book

Cram Quiz

Answer these questions. The answers follow the last question. If you cannot answer these questions correctly, consider reading this section again until you can.

1. Which type of charging connector would you find on an iPad?

  • circ.jpg A. Micro-USB

  • circ.jpg B. Lightning

  • circ.jpg C. Thunderbolt

  • circ.jpg D. IP68

2. You are required to add long-term storage to a smartphone. Which type would you most likely add?

  • circ.jpg A. DDR4

  • circ.jpg B. microSD

  • circ.jpg C. LPDDR4

  • circ.jpg D. SSD

  • circ.jpg E. SIM

3. The organization you work for allows employees to work from their own mobile devices in a BYOD manner. You have been tasked with setting up the devices so that they can “beam” information back and forth between each other. What is this known as?

  • circ.jpg A. Mobile hotspot

  • circ.jpg B. IoT

  • circ.jpg C. CYOD

  • circ.jpg D. IR

  • circ.jpg E. NFC

4. Which of the following can be useful in areas where a smartphone has cellular access but the PC (or laptop) cannot connect to the Internet?

  • circ.jpg A. Proprietary vendor-specific connector

  • circ.jpg B. Accessories

  • circ.jpg C. IP codes

  • circ.jpg D. Tethering

Cram Quiz Answers

220-1001 Answers

  • 1. B. The Lightning connector is one of Apple’s proprietary charging and synchronization connectors used by iPads and iPhones, although Apple also uses USB-C. Micro-USB is used by older Android-based mobile devices—while USB-C is more common on newer devices. Thunderbolt is a high-speed hardware interface used in desktop computers, which we will discuss more in Chapter 9. IP68 deals with ingress protection from dust and water jets.

  • 2. B. You would most likely add a microSD card (if the smartphone has a slot available for add-on or upgrading). This is the most common method for adding long-term storage. DDR4 is a type of RAM; it is not used for adding long-term memory storage. Some smartphones will use LPDDR4 as their main memory, but this is part of the SoC, and not accessible to the typical user. An SSD is a solid-state drive, which generally means a hard drive that is installed to a PC or laptop, connected either as SATA or M.2. These are too large for smartphones and tablets. A SIM is a subscriber identity module, usually represented as a small card (mini-SIM) used in smartphones that securely stores authentication information about the user and device, such as the international mobile subscriber identity (IMSI), which we will discuss more in the following chapter.

  • 3. E. “Beaming” the information back and forth can be accomplished in a couple of ways, primarily by using near field communication (NFC). This can only be done if the devices are in close proximity to each other. NFC is commonly used for contactless payment systems. Another potential option would be Apple’s AirDrop, but this relies on Bluetooth (for finding devices) and Wi-Fi (for transmitting data), and of course relies on using Apple-based devices. A mobile hotspot enables a smartphone or tablet to act as an Internet gateway for other mobile devices and computers. IoT stands for the Internet of Things. In the question, it said employees can use their mobile devices in a BYOD manner, but CYOD is a bit different. This means that employees can choose a device to use for work purposes (most likely whichever type they are more familiar with). Whether or not the employees can use those for personal purposes is usually defined by company policy. IR stands for infrared, which is less commonly found on smartphones as of 2017.

  • 4. D. Tethering can allow a desktop computer or laptop to share the mobile device’s Internet connection. Tethering functionality can be very useful in areas where a smartphone has cellular access but the PC/laptop cannot connect to the Internet. Mobile device accessories such as headsets, speakers, game pads, extra battery packs, and protective covers are useful, but they are not used to connect to the Internet. IP codes are used to classify and rate the degree of protection against dust and water (for example, IP68). A perfect example of a proprietary, vendor-specific connector is the Apple Lightning connector that can only be used on iOS devices.

Chapter 3 is in the books, so to speak. Excellent work, keep going!

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