3. Wireless and Mobile Networks

Question 1

Mobile phones use ___________ to transmit voice signals to antennas mounted on towers located in specific geographic areas.

Answer 1

radio waves

Question 2

It is located within the smartphone enable the phone to connect to local networks and the internet.

Answer 2

Wi-Fi transmitters and receivers

Question 3

It is an area where Wi-Fi signals are available.

Answer 3

hotspot

Question 4

It is wireless technology that allows devices to communicate over short distances. Multiple devices can be connected at the same time with it.

Answer 4

Bluetooth

Question 5

It is a wireless communication technology that enables data to be exchanged by devices that are in very close proximity to each other, usually less than a few centimeters.

Answer 5

NFC

Question 6

NFC meaning?

Answer 6

Near Field Communication

Question 7

These 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

Do Bluetooth consume high or low power?

Answer 8

It uses very little power, which helps conserve battery life.

Question 9

When a Bluetooth device is in discoverable mode, it transmits the following information when another Bluetooth device requests it:

Answer 9

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