WGU Comptia 25-26

What is one major indicator of a weak cellular signal? Select one: a. Dropped connections b. High transfer speeds c. Apps freezing d. Constant reboots

a. Dropped connections

What is the most accurate way to get a device's location? Select one: a. GPS b. Wi-Fi c. Cellular network d. IP address

a. GPS

Which identifier represents the unique 15-digit number of a mobile device? Select one: a. IMEI b. IMSI c. SSID d. ICCID

a. IMEI

Why is a hard reset the most disruptive reset option? Select one: a. It removes all of a user's data and settings. b. It causes battery drain. c. It closes applications. d. It frees up more internal space.

a. It removes all of a user's data and settings.

Modern mobile devices use what type of battery? Select one: a. Li-Ion b. Ni-CD c. Ni-Ion d. Ni-MH

a. Li-Ion

What type of screen technology do the less expensive portable devices and desktop monitors use? Select one: a. Twisted nematic (TN) b. Checkerboard backlit (CB) c. In-Plane Switching (IPS) d. Organic light-emitting diode (OLED)

a. Twisted nematic (TN)

Tablets generally lack _______________. Select one: a. cellular data connection b. Wi-Fi connection c. Apps d. Operating systems

a. cellular data connection

The _______________ feature enables smartphones to receive broadcasts from national emergency broadcast systems, such as the Emergency Alert System (EAS) in the United States. Select one: a. emergency notification b. airplane mode c. geotracking d. virtual assistant

a. emergency notification

Most mobile devices have a few _______________ stickers that change color when exposed to water. Select one: a. liquid contact indicator b. water contact c. damage d. IMEI

a. liquid contact indicator

Most mobile devices allow the user to set a(n) _______________ by using a password, PIN, pattern, fingerprint, and/or facial recognition to block strangers from accessing the device. Select one: a. screen lock b. permissions policy c. device reset d. data cleanup

a. screen lock

Secure SMTP uses TCP port _______________. Select one: a. 110 b. 465 c. 993 d. 995

b. 465

A mobile device overheats for seemingly no reason. What is the most likely cause? Select one: a. HD video recording b. Defective battery c. Low battery d. Auto-dimming screen

b. Defective battery

What hidden menu might exist to help with device calibration? Select one: a. Touch menu b. Diagnostics menu c. Device menu d. Information menu

b. Diagnostics menu

What is it called when you hold a system's power button for several seconds until it turns completely off? Select one: a. Soft reset b. Hard reboot c. Force quit d. Force stop

b. Hard reboot

A(n) ______________ number can be used to unlock a phone. Select one: a. IMEI b. IMSI c. ICCID d. SSID

b. IMSI

Which identifier is a number that is tied to the user's account with the carrier and is included with a mobile device's SIM? Select one: a. EMI b. IMSI c. SSID d. ICCID

b. IMSI

Which standard is used to configure digital signature settings for e-mail and contacts from the corporate address book, depending on how the corporate e-mail server is set up? Select one: a. SMTP b. S/MIME c. Exchange d. DNS

b. S/MIME

What was one of the earliest types of mobile devices? Select one: a. The phablet b. The personal digital assistant (PDA) c. The miniframe computer d. The tablet

b. The personal digital assistant (PDA)

What might a dim display mean? Select one: a. The memory is low. b. There is a problem with the display panel. c. An update is available. d. There are too many apps open.

b. There is a problem with the display panel.

A hot, sluggish device might use _______________ to protect the device's CPU from heat damage? Select one: a. heat dispersion b. thermal throttling c. liquid cooling d. automatic backup

b. thermal throttling

POP3 uses TCP port _______________. Select one: a. 25 b. 55 c. 110 d. 143

c. 110

What is the screen size for a typical smartphone? Select one: a. Three inches b. Four inches c. Five inches d. Six inches

c. Five inches

What type of screen technology does the Apple iPad use? Select one: a. Twisted nematic (TN) b. Checkerboard backlit (CB) c. In-Plane Switching (IPS) d. Organic light-emitting diode (OLED)

c. In-Plane Switching (IPS)

The _______________ is a priority-ordered list of the other carrier networks and frequencies it should search for when it cannot locate its home carrier's network. Select one: a. Preferred Release List (PRL) b. Product Roaming Instruction (PRI) c. Preferred Roaming List (PRL) d. Product Release Instruction (PRI)

c. Preferred Roaming List (PRL)

What type of authentication is a username and a password? Select one: a. Blind authentication b. Multifactor authentication c. Single-factor authentication d. Double-factor authentication

c. Single-factor authentication

What is the name of Apples's virtual assistant? Select one: a. Apple Now b. Google Now c. Siri d. Cortana

c. Siri

When a mobile app is shut down, what might the user lose? Select one: a. Saved data b. Persistent data c. Unsaved data d. System settings

c. Unsaved data

Besides the display, what is a very large battery drain for a mobile device? Select one: a. Weather apps b. Location settings c. Wireless communication d. Maps

c. Wireless communication

One of the most common fitness tracker features is counting your steps using _______________. Select one: a. GPS b. VR c. an accelerometer d. Bluetooth

c. an accelerometer

Infrared Data Association (IrDA) requires _______________, meaning that devices have to be directly facing each other, requires very short distances (sometimes inches) between devices, and has very slow data rates. Select one: a. Near Field Communication (NFC) b. Exchange ActiveSync (EAS) c. line of sight d. geotracking

c. line of sight

Having a user logon at a certain time of day, or even within so many seconds or minutes of another event, is known as a(n) _______________ factor. Select one: a. knowledge b. ownership c. temporal d. possession

c. temporal

Removing OS restrictions on an Android device is known as _________________. Select one: a. rooting b. device Spoofing c. unlocking d. jailbreaking

c. unlocking

What is the name of Microsoft's virtual assistant? Select one: a. Apple Now b. Google Now c. Siri d. Cortana

d. Cortana

When should you attempt to repair a battery? Select one: a. When the device is off b. After the battery is removed c. When the device is cool to touch d. Never

d. Never

What is a last resort you can do if your device is stolen? Select one: a. Remote restore b. Remote update c. Remote email d. Remote wipe

d. Remote wipe

The stereotypical e-reader uses a low-power _______________ screen technology called e-paper. Select one: a. OLED b. virtual c. digitized d. grayscale

d. grayscale

Factory reset, or reset to factory default, is also known as a _______________. Select one: a. hard backup b. restore c. soft reset d. hard reset

d. hard reset

Users rely on _______________ to conveniently find things near them, such as stores and restaurants, or to determine when your Uber driver will show up. Select one: a. single sign-on b. digitizers c. airplane mode d. location services

d. location services

Setting up equipment to spoof a carrier's tower and infrastructure is known as _______________. Select one: a. network ghosting b. cell tower control c. network analysis d. tower spoofing

d. tower spoofing

Generally, mobile devices have two types of radios: _______________. Select one: a. 802.11 and Bluetooth b. Satellite and Bluetooth c. 802.11 and Satellite d. 802.A and 803.B

a. 802.11 and Bluetooth