Lesson15

Question 1

What do many apps and services on iPhone/iPad rely on?

Answer 1

A stable network connection (cellular or Wi-Fi).

Question 2

What happens when a device has neither Wi-Fi nor cellular data?

Answer 2

Features may be limited or stop working.

Question 3

What are the two types of SIM technology used on iPhone/iPad?

Answer 3

eSIM and physical SIM.

Question 4

What component provides cellular service along with the carrier?

Answer 4

The device’s SIM/eSIM.

Question 5

Where can cellular connectivity issues sometimes originate?

Answer 5

Carrier settings.

Question 6

How do you manually check for carrier settings updates?

Answer 6

Settings → General → About.

Question 7

Why might a carrier settings update be required?

Answer 7

To ensure the device uses the latest network configurations.

Question 8

If a carrier settings update doesn’t appear, what does that imply?

Answer 8

Carrier settings are up to date.

Question 9

What connection types must you have to trigger a carrier settings update?

Answer 9

Wi-Fi or cellular.

Question 10

What might cause data services to fail even with carrier connectivity?

Answer 10

eSIM/SIM issues.

Question 11

What does a physical SIM require for troubleshooting?

Answer 11

Reseating or replacing the SIM card.

Question 12

What does an eSIM require for troubleshooting?

Answer 12

Carrier re‑provisioning or reinstalling the eSIM.

Question 13

Which SIM technology is digital?

Answer 13

eSIM.

Question 14

What is a symptom of a damaged SIM card?

Answer 14

“No SIM” or “Invalid SIM” errors.

Question 15

What does eSIM rely on instead of a removable chip?

Answer 15

Digital provisioning by the carrier.

Question 16

What is the first step when cellular data stops working?

Answer 16

Confirm cellular data is turned on.

Question 17

What setting might cause cellular data to be unavailable?

Answer 17

Data roaming restrictions.

Question 18

What should you check if you see “No Service”?

Answer 18

Coverage, SIM/eSIM status, carrier settings.

Question 19

What might cause intermittent cellular issues?

Answer 19

Poor signal or network congestion.

Question 20

What is a sign of carrier authentication problems?

Answer 20

Activation errors or inability to connect.

Question 21

What should you toggle to refresh the connection?

Answer 21

Airplane Mode on and off.

Question 22

What setting determines which line provides data on dual-SIM devices?

Answer 22

Cellular Data Line.

Question 23

What might block cellular data even when signal appears?

Answer 23

Incorrect APN settings.

Question 24

What option resets carrier-related settings?

Answer 24

Reset Network Settings.

Question 25

What hardware issue can break cellular?

Answer 25

A malfunctioning cellular antenna.

Question 26

What may cause a device to fail to register with the carrier?

Answer 26

Incorrect or outdated carrier settings.

Question 27

Why should you restart the device during troubleshooting?

Answer 27

Restarts refresh radio, SIM, and network state.

Question 28

What network type might fail if the carrier blocks it?

Answer 28

Personal Hotspot.

Question 29

What can cause “No Service” after traveling internationally?

Answer 29

Disabled data roaming.

Question 30

What should you check if the device is managed and can’t connect?

Answer 30

MDM restrictions.

Question 31

What feature allows sharing of a device's cellular data?

Answer 31

Personal Hotspot.

Question 32

What menu enables Personal Hotspot?

Answer 32

Settings → Personal Hotspot.

Question 33

What must be enabled for others to join your hotspot?

Answer 33

"Allow Others to Join."

Question 34

What network types can Personal Hotspot share?

Answer 34

Cellular data only.

Question 35

What is required for devices that auto-join via Apple ID?

Answer 35

Same Apple ID and Bluetooth/Wi‑Fi enabled.

Question 36

What restriction might prevent Personal Hotspot usage?

Answer 36

Carrier‑level hotspot restrictions.

Question 37

What device type might block hotspot sharing?

Answer 37

Devices with MDM "Allow Hotspot" disabled.

Question 38

What causes repeated hotspot disconnects?

Answer 38

Poor signal or power-saving features.

Question 39

What can prevent a Mac from connecting to a Personal Hotspot?

Answer 39

Incorrect Wi-Fi password or incompatible mode.

Question 40

What might cause the hotspot name not to appear?

Answer 40

Wi-Fi or Bluetooth turned off.

Question 41

What should you do if a device can’t find the hotspot?

Answer 41

Toggle Personal Hotspot off and on.

Question 42

What should you verify if hotspot connects but has no internet?

Answer 42

Cellular data is active on the host device.

Question 43

What resolves many hotspot authentication issues?

Answer 43

Changing the hotspot password.

Question 44

What setting might interfere with hotspot when battery is low?

Answer 44

Low Power Mode.

Question 45

What prevents hotspot from broadcasting?

Answer 45

Airplane mode enabled.

Question 46

Who must you contact if all troubleshooting fails?

Answer 46

The carrier.

Question 47

What iPhone feature ensures proper network compatibility?

Answer 47

Carrier bundle installation.

Question 48

Who controls hotspot availability on corporate devices?

Answer 48

MDM administrator.

Question 49

What might cause a device to lose hotspot capability after an update?

Answer 49

Outdated carrier settings or config changes.

Question 50

What is always recommended before escalating a cellular issue?

Answer 50

Restart device; check signal, SIM, settings.