A+ Practice Questions Mobile

True or False: A benefit of using a cloud backup service is that data from a mobile device can be easily recovered if a mobile device is lost or stolen.

• True

• False

What is the function of a digitizer in a modern smart phone?

• Converts digital wireless signals into analog for WiFi use

• Translates touches on a device's screen into computer readable input

• Allows mobile devices to support analog printing devices

• Used by the headphone jack to accept input from headphones with buttons, typically used to pause music or change the system volume

Which option is a reversible connector based on an open specification?

• Mini USB

• Micro USB

• Lightning

• USB C

Your employer requires all mobile devices have a VPN client installed. The VPN client should be enabled whenever public or otherwise untrusted wireless networks are used. What is the benefit of using a VPN?

• VPNs are a client only application that scans network traffic for possible viruses and worms

• VPNs upgrade any HTTP traffic to HTTPS automatically

• VPNs provide a packet scanning service that ensures the untrusted wireless network is safe to use

• VPNs provide an encrypted tunnel that protects data transmitted wireless from being read by malicious actors

Which keyboard feature allows laptop manufactures to reduce keyboard size and provide small form-factor laptops?

• Function key

• F1

• PS2

• Touch Screen

Which of the following is a network protocol used to download emails onto a mobile phone?

• YahooMail

• IMEI

• POP3

• SMTP

An employee with a Windows 10 laptop and a docking station has opened a ticket with the IT Help Desk where you work. The ticket asks if the two monitors at their desk can be swapped because they are not in the correct order when the user docks their laptop. How should you proceed?

• Right-click on the desktop, select Display Settings and find the Re-arrange your displays section

• Re-arrange the displays on the desk so they are in the correct order

• Unplug the two monitors from the docking station, then plug them back into the docking station in the opposite order

• Right-click on the desktop, select Personalize and find the swap display order button

What type of battery is most common for use in mobile devices like laptops and smart devices?

• Alkaline

• Lead-acid

• Silver-oxide

• Lithium-ion

Which of the following correctly explains the following statement: > Small mobile devices like smart phones and tablets do not use spinning disks.

• False. Like laptops, smart phones and tablets use spinning disks

• True. The moving parts of a spinning disk are too fragile for small mobile devices

What wireless technology is used by contactless payment services?

• IR

• Bluetooth

• NFC

• WiFi