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COMPTIA A+ Core 1 > 1.0 Mobile Devices > Flashcards

1.0 Mobile Devices Flashcards

1
Q

What are two types of laptop batteries?

A

Lithium-ion (Li-ion) and Lithium-ion polymer (LiPo). They both have no memory effect

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2
Q

What does SO-DIMM stand for?

A

Small outline dual in-line memory module. It’s memory used in laptops and mobile devices

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3
Q

What are two types of laptop storage?

A

Magnetic disk and solid-state drive (SSD). Can’t forget M.2 drives, a smaller, modular version of SSD

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4
Q

How can you migrate a user from one drive to another?

A
  1. Install an OS on the SSD and move files manually, cumbersome process.
  2. Image/clone the hard drive device, then move image to new SSD. Requires imaging software
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5
Q

What are three different ways to send data wirelessly (hint: wireless)

A
  1. 802.11 or WAN, wireless area network
  2. Bluetooth or PAN, personal area network
  3. WWAN, wireless wide area network (cellular)
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6
Q

Besides biometrics, what’s another common way to authenticate yourself to an OS?

A

NFC or near-field communication. Used on phones, smart watches, and ID cards

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7
Q

What are types of laptop displays?

A

LCD, liquid crystal display
–TN, twisted nematic display (gaming)
–IPS, in plane switching (graphics/publishing)
–VA, vertical alignment (kind of middle ground)
OLED, organic light emitting diode
–light and great color representation

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8
Q

What is a laptop component that helps it receive network connection?

A

Antenna, typically on high point of display for good signal

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9
Q

What kind of backlighting might you find in an old laptop?

A

CCFL, cold cathode fluorescent lamp. Newer laptops will use LED-backlit LCD display

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10
Q

What do LCD displays need in order to function?

A

A backlight. Some laptops have inverters that convert DC to AC power to turn on the backlights

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11
Q

How can you verify is backlight is broken or not?

A

Shine a flashlight on it to see if color shows or not

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12
Q

What component lets a stylus send information to the display?

A

A digitizer, used commonly on laptops, tablets, or hybrid devices. A touchscreen digitizer is another example of this

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13
Q

What is the primary wired connection type for mobile phones?

A

USB, universal serial bus. Different types include micro B, type A, USB-C. Can transmit signals like DisplayPort, HDMI, and Thunderbolt

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14
Q

What was the main serial connection type before USB?

A

DB-9, also called DE-9. Transmits RS-232 signal, the industry standard since 1969

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15
Q

Why would someone want to use a stylus, as opposed to their fingers, on a touchscreen?

A

It allows them to see the screen while they’re writing. A more advanced writing tool is called a digital stylus or active stylus

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16
Q

What’s one benefit to using an external digitizer?

A

Support across many different OS

17
Q

What is another name for the 3.5mm audio jack, and what does it stand for?

A

TRRS, tip-ring-ring-sleeve connector

18
Q

When you have multiple workspaces, what’s one way to eliminate the constant plugging and unplugging of a laptop?

A

Docking station. It uses an external keyboard and mouse to extend existing laptop interfaces

19
Q

What’s a smaller alternative to a docking station?

A

Port replicator. Usually connects using USB and does not typically have an expansion card option

20
Q

Where did the name “cellular” come from when referring to cellular networks?

A

We separate the land into cells by using cell towers

21
Q

What are the two types of cellular networks?

A

GSM, global system for mobile communications
CDMA, code division multiple access

22
Q

What kind of cellular network allows you to move your SIM card from phone to phone?

A

GSM, used by AT&T and T-Mobile. (SIM card stands for subscriber identity module.) Each user gets a slice of time

23
Q

How does a CDMA network work?

A

Everyone communicates at the same time using a different call code. Your device filters out calls that aren’t important

24
Q

What is LTE?

A

Long term evolution. 4G network technology that converged standards between GSM and CDMA, allows more data throughput

25
Q

What is a PRL update?

A

Preferred roaming list. Allows your phone to connect to the right tower, can be updated over the air (OTA)

26
Q

How many satellites does your phone need access to in order to provide precise navigation?

A

At least 4. Your location is determined by longitude, latitude, and altitude

27
Q

What technology can you use to manage company-owned and user-owned mobile phones?

A

MDM, mobile device management. This allows you to set policies on apps, data, camera, etc. You can also manage access control by forcing screen locks and PINs

28
Q

Are docking stations proprietary or generalized?

A

Proprietary

29
Q

Which of the following answers refers to a dedicated mobile app management software?
UEM
MAM
RCS
MDM

A

MAM (mobile application manager)

COMPTIA A+ Core 1 (5 decks)

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