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CompTIA A+ 220-1001 & 220-1002_ > A+ 1002: CH17 Review > Flashcards

A+ 1002: CH17 Review Flashcards

1
Q

The vast majority of users will go with a _________ panel with a ________ backlight?

TN, direct LED
CCFL, direct LED
IPS, edge LCD
VA, direct LED

A

IPS, edge LCD

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2
Q

What is another term for thin film transistor (TFT) technology?

Active Matrix
Passive Matrix
Dual-Scan Passive Matrix
Dual Scan Matrix

A

Active Matrix

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3
Q

A Color LCD screen is composed of a large number of tiny liquid crystal molecules, called _________, arranged in rows and columns between polarizing filters?

backlights
inverters
sub-pixels
dots

A

sub-pixels

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4
Q

Which type of LCD monitor offers the best color?

vertical alignment
edge LED backlighting
Twisted pneumatic
in-plane switching

A

in-plane switching

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5
Q

What characteristics of a monitor is calculated by multiplying the number of horizontal pixels and the number of vertical pixels?

size
color
brightness
resolution

A

resolution

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6
Q

Which term describes the difference between the darkest and lightest spots that the monitor can display?

brightness formation
depth perception
pixilation
contrast ratio

A

contrast ratio

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7
Q

________ is considered to be a good contrast ratio?

450: 1
50: 1
250: 1
100: 1

A

450:1

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8
Q

Early LCD backlights use ______ technology, popular for its low power use, even brightness, and long life?

bright light
pixels
cold cathode fluorescent lamp
solar bulbs

A

cold cathode fluorescent lamp

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9
Q

A pixel that is stuck on pure white is known as _______ pixel?

burned-in
stuck
burned-out
lit

A

lit

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10
Q

A True 3D object is composed of a group of points called _______?

dimensions
pixels
vertices
triodes

A

vertices

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11
Q

Which LCD components are powered by a high-voltage electrical circuit that can give you a nasty shock?

CCFL frontlights
inverters
convergers
low-voltage b-nodes

A

inverters

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12
Q

A _______ is the amount of light given off by a light source from a certain angle that is perceived by the human eye?

nit
throw
lumen
pixel

A

lumen

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13
Q

What fast expansion card standard was developed to replace PCI and AGP?

LCD
PCIe
DVI
DirectX

A

PCIe

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14
Q

Some projectors use a connection technology called ______ that enables long-range connectivity for uncompressed HD video and audio over Cat 5a or Cat 6 network cables?

USB Type-C
Thunderbolt 1
MiniDisplayPort
HDBaseT

A

HDBaseT

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15
Q

The secret to understanding the most common type of LCD panels is to understand the concept of the _______ of light?

reflectiveness
color
polarity
length

A

polarity

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16
Q

Higher-end monitors are capable of _______ panels, meaning the monitor can display ______ color variations per channel, providing over 1 billion color variations?

24-bit, 16.7 million
30-bit, over 1 billion
8-bit, 256
10-biit, 1024

A

10-bit, 1024

17
Q

Average LCD panels are around ______, which most monitor authorities consider excellent brightness?

100 kHz
300 nits
300 pixels
100 bits

18
Q

Which LCD component sends power to backlights that need AC electricity?

Inverter
TFT
Active Matrix
GDDR5

19
Q 
One nit is equivalent to \_\_\_\_\_\_\_?
one candela/m
ten candellas/m2
one candela/m2
one lumen/m2
A

one candela/m2

20
Q

If you hear a hissing sound coming from the LCD, which component is most likely about to fail?

battery
vacuum tube
inverter
yoke

21
Q

What term identifies how many colors can be displayed on a screen?

Pixels
Color Depth
Megahertz
Nits

A

Color Depth

22
Q

The proprietary ______ technology from Texas Instruments uses a single processor and an array of tiny mirrors to project a frontview image?

Direct LED Backlighting
Edge LED Backlighting
Digital Light Processing (DLP)
Brightness Formation

A

Digital Light Processing (DLP)

23
Q

What aspect ratio is used in Widescreen Monitors?

16: 9
3: 4
10: 16
4: 3

24
Q

Like any other processor, a graphics processor needs _______?

GPUs
RAM
AGP Buses
HDMI Connectors

25
Q

What should you use to clean LCD monitors?

Liquid Window Cleaner
Windshield Washer Liquid
Ammonia Wipes
Antistatic Monitor Wipes

A

Antistatic Monitor Wipes

26
Q

To create Realistic Movement, the 3D world must refresh atleast ______ times per second?

16
24
32
10

27
Q

Every 3D game stores a number of image files called ______?

textures
pixels
signals
dots

28
Q

What do 3D programs use to send standard video commands to the device driver?

ARIs
AGIs
AKIs
APIs

29
Q

Which DVI connector accepts either a DVI-D or DVI-A connection?

DVI-DI
DVI-A
DVI-I
DVI-B

30
Q

________ screens use organic compounds between the glass layers that light up when given an electrical charge, which means they require no backlight at all?

OLED
CCFL
DLP
TFT

CompTIA A+ 220-1001 & 220-1002_ (36 decks)

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