CompTIA A+ Module 9 Supporting Mobile Devices

A large retail chain has asked Dillion to explore wireless technologies to see if there is a better way of tracking apparel inventories. What technology should Dylan recommend to his company?

• 4G tracking receivers

• NFC tags

• Bluetooth receivers

• RFID tags

Kiran realizes her iPhone has no battery power. She needs to make an emergency call and starts charging it. When she turns around, her two-year-old grabs the phone and starts running into the kitchen. She chases him so he tries to hide it in the sink, but it lands in a pot full of water. What should Kiran do with the wet iPhone?

• Use compressed air to dry the iPhone

• Use a heat chamber or hair dryer

• Submerge the phone in a bag of rice

• Try charging the phone anyway

You are in the market for a used smartphone, but you want to ensure it you can use it as a hotspot. Which technology should it support? Select all that apply.

• 5G

• 4G

• 3G

• 2G

A company asks Aurora to work on a mobile device that belongs to a colleague. After her evaluation, she narrows down the list of things to consider doing. They include uninstalling some apps, updating the OS, and possibly performing a factory reset. What would have prompted her to consider these actions?

• You are trying to remove suspected malware.

• The device is being returned to the provider.

• The device is being prepared for another user.

• The performance of the device had degraded.

Liem just discovered the used phone he bought is on an IMEI blacklist. What does this mean?

• The wireless transmitter is too strong

• He may not be able to activate it

• Password guesses locked the phone

• The phone will need a factory reset

Juniper wants to buy her father a tablet. He has relatively poor vision, so she does not want him to have to worry about the orientation of the plug on the cable when he charges the device. Juniper will get her father a tablet with what type of USB charging port?

• MiniUSB

• MicroUSB

• Lighting

• USB-C

Collette wants to stream a movie from her iPad to her Apple TV. What type of connection should she use?

• CDMA

• NFC

• AirDrop

• RFID

The back cover of a mobile device is warmer than usual, and the battery seems to lose its charge much quicker than normal. The user has scanned for malware, closed unused apps, and decreased the brightness level of the screen, but the symptoms persist.Which of the following is the most likely cause for this behavior?

• The charger is defective.

• The firmware is out of date.

• The battery is going bad.

• The AC power outlet is faulty.

Derek is planning a camping trip and wants to be able to listen to music at the campsite. Derek currently has a smartphone but does not like the sound coming from the speakers.What can Derek do to enjoy better sound quality while at the campsite?

• Tether to his laptop.

• Connect to a Bluetooth speaker.

• Create a hotspot.

• Use his smartphone speakers; this is the only way Derek can listen to music on his smartphone.

Mark has been asked to set up several smartphones to connect to the email server in the company for which he works.What is the effect of configuring POP3 vs IMAP using the default settings?

• IMAP deletes messages from the email server, POP3 does not.

• Both will preserve messages on the server once downloaded.

• Both will delete messages from the server once downloaded.

• POP3 deletes messages from the email server, IMAP does not.