Chapter 25 Review: Understanding Mobile Devices

Question 1

What is tethering?

Answer 1

When a WiFi device uses another device’s cellular connection to get on the Internet

Question 2

Which of the following are features of mobile devices? Select more than one

a. each has a single audio jack for earbuds or speakers
b. Uses SSD storage instead of HDD
c. No FRUs
d. CPU and GPU are integrated

Answer 2

a-d are correct answers

Except for APPLE who doesn’t have a headphone jack, but I guess for the exam, all mobile devices have an audio jack

Question 3

What feature allows a user to rotate a device and have the screen rotate?

Answer 3

Accelerometer

Question 4

True or false:

The APK is a set of development tools used to write/create apps and the SDK is the format used to distribute and install applications onto Android OS

Answer 4

False

The SDK is a set of etc. etc. and the APK is the format used to distribute and install onto Android

Question 5

What email protocol is associated with port 25?

Answer 5

SMTP

Question 6

What feature allows the government to track your location if you’re using a mobile phone?

Answer 6

Geotracking

Question 7

A _____ establishes a secure connection between two sites.

They use various protocols including L2TP, IPsec, and _____

Answer 7

VPN, SSL

Question 8

What wireless communication method has the shortest operational range?

Answer 8

NFC

Question 9

What technology do you use when you tap a phone next to a reader to pay for something?

Answer 9

NFC

Question 10

What is the typical screen size of a phablet?

Answer 10

5-7 inches

Question 11

What are the steps to pairing a bluetooth device to a mobile phone?

Answer 11

1) enable bluetooth on phone
2) enable bluetooth device
3. discover bluetooth device
4. enter PIN on phone
5. test connectivity

Question 12

What iPhone version introduced the Lightning connector?

Answer 12

iPhone 5

Question 13

Used to identify a SIM, which contains information unique to the owner of the phone

Answer 13

ICCID

Question 14

Used to identify a mobile device, and can be found in the battery compartment or device settings

Answer 14

IMEI

Question 15

Used to identify a user account with a particular carrier, unacceptable from the phone

Answer 15

IMSI

Question 16

____ uses Wi-Fi to provide mobile phone coverage over a wifi network where cellular service may be poor or non existent

Answer 16

Wi-Fi calling

Question 17

_______ OS maintains a closed environment. They control what apps can be distributed through their app store. This is a _______ source system.

Answer 17

Apple, closed

Question 18

______ OS manufacturers can customize the OS and there are many third party apps that work with it. This is a ______ source system.

Answer 18

Android, open

Question 19

Why would you prefer an E-Reader over a mobile device?

Answer 19

• Longer battery life

- Easier to read in low light

Question 20

Who offers more expansion capability in their mobile devices? Apple or Android?

Answer 20

Android

Question 21

A _____ refers to the mobile device component that provides the “touch” part of a touch screen

Answer 21

Digitizer

Question 22

What mobile device screen technology uses no backlight?

Answer 22

OLED