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Test your basic knowledge |
Comptia A +: Hardware Display Devices
Start Test
Study First
Subjects
:
certifications
,
comptia-a-+
,
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Composite signals combine three qualities of video into a single signal; the ____ channel is for ____ or luminance and U and V channels provide color information.
perture grill
Y brightness
Degauss
LED (Light Emitting Diode)
2. The ____ is the number of pixels available on a display screen. Specifically - it is described by the amount of pixels horizontally across the display by the amount of pixels vertically down the display.
Resolution
CRT
Progressive scanning
DisplayPort
3. DisplayPort does not use ______ than DVI and HDMI.
Higher voltage
DVI-I (digital video-integrated)
2048 1536
Brightness
4. Full HD content is designed for a resolution of 1920 x 1080 using ____ (where each line on the screen is redrawn in order). Full HD support is therefore referred to as 1080p.
Contrast ratio
Better
Progressive scanning
Dual
5. The s-video connector is a ____-pin mini-din connector that has two separate channels - one for Y (luminance) and one for UV (color).
Widescreen
both video and audio input
4
HDMI (High-Definition Multimedia Interface)
6. ____ is drawing the screen in two passes; odd lines on the first and then the even lines on the second pass.
DVI HDMI
Interlacing
Normal
720p 1080i
7. The ____ indicates how quickly a pixel can go from black - to white - and back to black and is indicated in milliseconds (ms).
720p 1080i
Contrast ratio
Speakers USB
Response time
8. Green monitors are Energy Star or Green Star compliant. These monitors use less than ____ watts and reduce power consumption by ____% when in sleep or suspended mode.
30 99
Resolution
16:9
LCD monitor that accepts an analog connection
9. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
1152 864
1280x720 1920x1080
Flat displays
HDCP
10. Green monitors are Energy Star or Green Star compliant. These monitors use less than ____ watts and reduce power consumption by ____% when in sleep or suspended mode.
External
Pixels
30 99
Y UV
11. A quicker ____ is needed when viewing moving images such as video or games. If it is too slow (above 8ms) the result are ghosting or blurred images.
IPS (In Plane Switching)
1024 768
Response time
S-video
12. A ____ connection on a video card provides analog - video-only TV output. These video connectors are RCA connectors (typically yellow).
Backlight
Composite video
1024 768
Utilities
13. The ____ is the ratio of the width and the height.
Aspect ratio
Dot pitch
CRT native
CRT native
14. VA panels have ____ color reproduction and wider viewing angles than TN displays - but with slower response times and a higher cost.
Normal
DVI-I (digital video-integrated)
Better
Progressive scanning
15. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. SXGA = ____ x ____ (5:4 aspect ratio).
Shadow mask
DVI-A (digital video-analog)
1280 1024
7
16. RT monitors use an electron beam that hits phosphor dots inside of a vacuum tube. While it is possible for a CRT monitor to have a digital connection - virtually all CRT monitors connect to the video card using a ____ (also called a D-sub) connector.
Contrast ratio
DB-15
DVI-D (digital video-digital)
6
17. There are two methods of controlling the illumination of the phosphor - 1) ____ that consists of a metal screen full of holes that are aligned with each dot. The screen shields the electron beam from illuminating between dots and leaves an outline ar
Shadow mask
CRT
Composite
Backlight
18. Resolutions with a W in the name are X____ resolutions with a 16:10 aspect ratio. In addition to these standard resolutions - you can also purchase monitors with the 16:9 aspect ratio used by HDTV content.
Backlight
Pixel pitch
1920 1080
Widescreen
19. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
DisplayPort
DB-15
Dot pitch
Same cable
20. There are currently two methods used for the backlight - 1) ____ that is currently the most common backlight source and require an inverter to provide AC power to the backlight.
CCFL (Cold Cathode Fluorescent Lamp)
6
Single
Physical effective
21. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
VA (Vertical Alignment)
Speakers USB
Degauss
Resolution
22. ____ or luminance identifies the amount of light the monitor produces (how bright it is) and is measured in candelas per square meter (cd/m2 also called a Nit) - with a higher number indicating a brighter screen.
Single link
LCD
Brightness
1400 1050
23. There are currently two methods used for the backlight - 1) ____ that is currently the most common backlight source and require an inverter to provide AC power to the backlight.
Pixel pitch
CCFL (Cold Cathode Fluorescent Lamp)
DVI-D (digital video-digital)
640 480
24. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. SXGA+ = ____ x ____.
Worse
1400 1050
Higher sharper
30 99
25. The ____ is the number of pixels available on a display screen. Specifically - it is described by the amount of pixels horizontally across the display by the amount of pixels vertically down the display.
Resolution
VN (Twisted Nematic)
LED (Light Emitting Diode)
1280 1024
26. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. UXGA = ____ x ____.
Interlacing
LED (Light Emitting Diode)
1600 1200
LCD monitor that accepts an analog connection
27. The ____ is the number of pixels available on a display screen. Specifically - it is described by the amount of pixels horizontally across the display by the amount of pixels vertically down the display.
Viewing angle
Interlacing
Higher sharper
Resolution
28. DVI-D ____ link cable.
Video card
Dual
Pixel pitch
Static
29. ____ is drawing the screen in two passes; odd lines on the first and then the even lines on the second pass.
Video card
Interlacing
Dual link
Single
30. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. VGA = ____ x ____.
640 480
Diagonal
DVI-A (digital video-analog)
2048 1536
31. A ____ screen is typically desired for watching movies - or on laptops where the screen is viewed in full sunlight.
Resolution
2048 1536
Brighter
DVI-I DVI-D
32. Cheaper TVs and monitors at lower resolutions or using ____ (where every other line is drawn with each pass) are not capable of displaying all of the video content in full HD.
1024 768
Physical effective
2048 1536
Interlacing
33. ____ or luminance identifies the amount of light the monitor produces (how bright it is) and is measured in candelas per square meter (cd/m2 also called a Nit) - with a higher number indicating a brighter screen.
Brightness
1600 1200
Converter box
Video card
34. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
1680 1050
Dynamic
CCFL (Cold Cathode Fluorescent Lamp)
CRT
35. If the video card only has a DVI-D connector and you have an analog-only monitor - it is often cheaper to purchase a new ____ instead of the converter box.
Diagonal
Backlight
Video card
TFT (thin film transistor)
36. The ____ is the distance between pixels. A lower number means a sharper image and possibly higher resolutions.
Pixel pitch
Adapter
DVI-I (digital video-integrated)
1680 1050
37. The D-sub connector on a video card provides....
Degauss
D-sub connector
Analog output
Response time
38. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
1920 1200
Normal
VA (Vertical Alignment)
Debris
39. The ____ rate is the amount of time (measured in Hz) required for the CRT's electron beam to paint the screen from top to bottom. Increasing the rate reduces screen flicker.
Response time
1280 1024
Refresh
1920 1200
40. The ____ connector is used to allow multiple video ports from a single connection.It is typically included on slimline video cards that can have only a single port. It sends out two separate DVI-I signals through the single connector.
1920 1080
DMS-59
640 480
Analog
41. ____ link allows for longer cable lengths and a higher video resolution and you should choose this type of video card whenever possible.
Analog CRT monitor
Diagonal
D-sub connector
Dual
42. ____ panels have relatively slow response times (6ms to 16ms) - and have a slight purple tint in blacks when viewed from a wide angle.
DB-15
LCD monitor that accepts an analog connection
IPS (In Plane Switching)
Color shift
43. DisplayPort uses a different signal format than DVI or HDMI. However - it supports sending DVI or HDMI signals over the same port using a simple ____.
D-sub connector
Adapter
Contrast ratio
G2G (grey-to-grey - or GTG)
44. You can connect analog CRT monitors to a video card with a...
G2G (grey-to-grey - or GTG)
Converter box
D-sub connector
CRT native
45. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size.WUXGA = ____ x ____.
TFT (thin film transistor)
Interlacing
1920 1200
Contrast ratio
46. TN panels have poor color reproduction due to the fact that only ____-bits per color can be displayed. They mimic true 24-bit color using dithering and other techniques.
Higher voltage
Dual link
Composite video
6
47. CRT monitors with DVI-D connectors are possible but rare. This means that the CRT monitor accepts ____ input.
VN (Twisted Nematic)
VN (Twisted Nematic)
Adapter
Digital
48. CRT monitors have a ____ aspect ratio which matches the display ration of a television set.
4:3
Aspect ratio
DVI-A (digital video-analog)
S-video
49. Screen size is often expressed in two different measures - the ____ screen size (also called the actual size) and the ____ viewing size that identifies the largest image size that can be displayed.
Degauss
Physical effective
LCD
Shadow mask
50. It is common for ____ monitors to support a wide number of resolutions - but LCD monitors often have a____ (optimum) display resolution.
Return policy
Interlacing
Degauss
CRT native