Mobile Device Networks

Question 1

Why is it called a cell phone?

Answer 1

Because cellular networks divide geographic areas into cells covered by antennas.

Question 2

Cellular networks divide land into areas called ______.

Answer 2

Cells

Question 3

Cellular networks provide both ______ and ______ communication.

Answer 3

Voice, Data

Question 4

True or False: Airplane mode disables all wireless communication on a device.

Answer 4

True

Question 5

True or False: You can disable cellular data but still use voice services.

Answer 5

True

Question 6

4G is often referred to as ______.

Answer 6

LTE (Long-Term Evolution)

Question 7

What does GSM stand for?

Answer 7

Global System for Mobile Communications

Question 8

4G LTE supports speeds up to approximately ______ Mbps.

Answer 8

150

Question 9

LTE Advanced (LTE-A) supports speeds up to ______ Mbps.

Answer 9

300

Question 10

5G can support speeds up to ______ Gbps on higher frequencies.

Answer 10

10

Question 11

True or False: 5G was introduced around 2020.

Answer 11

True

Question 12

True or False: 5G only operates at one frequency range.

Answer 12

False

Question 13

Why is 5G important for IoT (Internet of Things)?

Answer 13

It provides higher bandwidth, allowing more data to be transmitted quickly.

Question 14

What does 802.11 refer to?

Answer 14

Wireless networking standards (Wi-Fi)

Question 15

True or False: 802.11 networks require a wired Ethernet cable for each device.

Answer 15

False

Question 16

True or False: Wi-Fi has a more limited range compared to cellular networks.

Answer 16

True

Question 17

A user has poor 5G signal but strong Wi-Fi. Can they still make calls?

Answer 17

Yes, using Wi-Fi calling over 802.11.

Question 18

What is hotspot functionality?

Answer 18

Turning a mobile phone into a router so other devices can share its cellular internet connection.

Question 19

When using hotspot mode, the phone connects to the cellular network and shares it over ______.

Answer 19

Wi-Fi (802.11)

Question 20

True or False: All carriers allow hotspot functionality at no additional cost.

Answer 20

False

Question 21

What does SIM stand for?

Answer 21

Subscriber Identity Module

Question 22

A SIM card stores your ______ identity and phone number information.

Answer 22

Subscriber

Question 23

You can move your phone number to another device by moving the ______ card.

Answer 23

SIM

Question 24

True or False: A SIM card can store contacts and messages.

Answer 24

True

Question 25

True or False: An eSIM can be physically removed from a phone.

Answer 25

False

Question 26

What is an eSIM?

Answer 26

An embedded SIM built into the device that is managed through software.

Question 27

A user wants two phone numbers on one device. What feature makes this possible?

Answer 27

Multiple SIM support (dual SIM / eSIM + SIM)

Question 28

What is the purpose of Bluetooth pairing?

Answer 28

To securely connect two Bluetooth devices.

Question 29

Bluetooth pairing often requires entering or confirming a ______.

Answer 29

PIN

Question 30

True or False: You must repeat the full pairing process every time you reconnect a Bluetooth device.

Answer 30

False

Question 31

What must you enable on both devices before pairing?

Answer 31

Bluetooth

Question 32

Before pairing, devices must be set to ______ mode.

Answer 32

Discoverable

Question 33

What does GPS stand for?

Answer 33

Global Positioning System

Question 34

GPS was created by the ______ Department of Defense.

Answer 34

United States

Question 35

For accurate GPS positioning, a device typically needs signals from at least ______ satellites.

Answer 35

Four

Question 36

True or False: GPS determines latitude, longitude, and altitude.

Answer 36

True

Question 37

Besides GPS, what two other methods can help determine your location?

Answer 37

Wi-Fi positioning and cellular tower triangulation

Question 38

If GPS signals are weak indoors, what alternative technologies may determine location?

Answer 38

Wi-Fi positioning or cellular triangulation