//3. Wireless and Mobile Networks

Question 1

What are the topics for this Module?

Answer 1

1. Wireless Network
2. Mobile Device Connectivity

Question 2

This connection uses satellites to transmit signals that cover the globe. The smartphone can receive these signals and calculate the phone’s location to an accuracy of within ___________.

Answer 2

GPS, 10 meters

Question 3

Bluetooth is a low-power, shorter range wireless technology that is intended to replace _________ for accessories such as speakers, headphones, and microphones.

Answer 3

wired connectivity

Question 4

Because Bluetooth technology can be used to transmit both data and voice, it can be used to create _________

Answer 4

small local networks

Question 5

Meaning of NFC?

Answer 5

Near Field Communication

Question 6

NFC uses what to transmit data?

Answer 6

electromagnetic fields

Question 7

What precautions should be taken to protect Wi-Fi communications on mobile devices?

Answer 7

• Never send login or password information using unencrypted text (plaintext).
• Use a VPN connection when possible if you are sending sensitive data.
• Enable security on home networks.
• Use WPA2 or higher encryption for security.

Question 8

If your mobile device does not prompt to connect to a Wi-Fi network it may be what?

Answer 8

The network SSID broadcast may be turned off, or the device may not be set to connect automatically.

Question 9

It is the name assigned to a wireless network.

Answer 9

SSID (Service Set Identifier)

Question 10

How to connect to a Wi-Fi network manually on an Android device?

Answer 10

Step 1. Select Settings > Add network.
Step 2. Enter the network SSID.
Step 3. Touch Security and select a security type.
Step 4. Touch Password and enter the password.
Step 5. Touch Save.

Question 11

How to connect to a Wi-Fi network manually on an iOS device?

Answer 11

Step 1. Select Settings > Wi-Fi > Other.
Step 2. Enter the network SSID.
Step 3. Touch Security and select a security type.
Step 4. Touch Other Network.
Step 5. Touch Password and enter the password.
Step 6. Touch Join.

Question 12

How the mobile device network transitions from one network to another ?

Answer 12

As a mobile device moves from an area of 4G coverage to 3G coverage, the 4G radio shuts off and turns on the 3G radio.

Question 13

What are the three methods to on/off a bluetooth on a laptop?

Answer 13

1. Go to bottom right corner > click action center > clik on off bluetooth (you can also right click the bluetooth from there and click settings to check bluetooth)
2. Click windows > control panel > Under “hardware and sound” click “add a device” > then add bluetooth
3. Search bar > Type “Settings” > Click “devices” > on off bluetooth

Question 14

Up to how many bluetooth devices can be connected together at any one time.

Answer 14

Eight. But google says Seven

Question 15

When a Bluetooth device is in discoverable mode, it transmits what information when another Bluetooth device requests it?

Answer 15

• Name
• Bluetooth class
• Services that the device can use
• Technical information, such as the features or the Bluetooth specification that it supports