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Test your basic knowledge |
Comptia A +: Hardware Display Devices
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Subjects
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certifications
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comptia-a-+
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it-skills
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. There are currently two methods used for the backlight - 2) ____ backlights provide brighter screens - lower power consumption - a wider color range - greater contrast - and mercury-free construction. They use DC power - eliminating the need for an i
CCFL (Cold Cathode Fluorescent Lamp)
Brightness
1920 1080
LED (Light Emitting Diode)
2. 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.
Physical effective
Response time
1920 1200
Single
3. ____ panels are the most expensive type of panel - and could be difficult to find.
Shadow mask
Dead pixel
Pixels
IPS (In Plane Switching)
4. CRT monitors have a ____ aspect ratio which matches the display ration of a television set.
4:3
Degauss
Widescreen
Brighter
5. 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.
Converter box
6
DB-15
CCFL (Cold Cathode Fluorescent Lamp)
6. The ____ connector - sometimes called a VGA connector - uses a DB-15 connector with three rows of pins.
CRT
D-sub
Flat displays
Video card
7. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
DVI-I (digital video-integrated)
DVI-D (digital video-digital)
VA (Vertical Alignment)
Interlacing
8. DVI-D ____ link cable.
Dual
Speakers USB
1920 1200
Aspect ratio
9. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. UXGA = ____ x ____.
1600 1200
Analog
Utilities
Splits the signal
10. LCD monitors often include features for HDTV support such as an HDMI input that accepts ____________ through the HDMI port.
both video and audio input
Better
IPS (In Plane Switching)
Progressive scanning
11. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. UXGA = ____ x ____.
Response time
1600 1200
Single link
1920 1200
12. 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.
1920 1080
Higher sharper
Video card
CCFL (Cold Cathode Fluorescent Lamp)
13. Most manufactures have a minimum number of ____ pixels that must exist before they will consider an exchange. In addition - some place limitations on where they must be located in order to qualify.
Pixels
Aspect ratio
Screen
Dead
14. ____ panels have relatively slow response times (6ms to 16ms) - and have a slight purple tint in blacks when viewed from a wide angle.
Shadow mask
IPS (In Plane Switching)
Better
Backlight
15. Composite signals combine three qualities of video into a single signal; the Y channel is for brightness or luminance and ____ and ____ channels provide ____ information.
Refresh
U V color
4
Interlacing
16. 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.
D-sub
Single link
30 99
IPS (In Plane Switching)
17. ____ is drawing the screen in two passes; odd lines on the first and then the even lines on the second pass.
Refresh
DMS-59
Higher voltage
Interlacing
18. TN panels have ____ viewing angles and contrast ratios than the other display types.
Video card
16:9
Worse
Aperture grill
19. LCD monitors often include features for HDTV support such as an HDMI input that accepts ____________ through the HDMI port.
CRT
both video and audio input
1152 864
Analog output
20. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
Video card
Dot pitch
DMS-59
LCD
21. VA panels suffer from ____ that produces uneven colors across the display with loss of detail in dark scenes.
Utilities
D-sub connector
DB-15
Color shift
22. LCD monitors often include features for HDTV support such as built-in speakers and audio-out to ____ speakers. LCD monitors often include features for HDTV support such as an HDTV tuner to allow you to watch TV and change channels when the monitor is
DVI-D (digital video-digital)
DMS-59
External
LCD
23. 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.
1280 1024
DVI-A connection
Analog CRT monitor
30 99
24. 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.
Refresh
DVI-A connection
DMS-59
Brighter
25. It is common for ____ monitors to support a wide number of resolutions - but LCD monitors often have a____ (optimum) display resolution.
IPS (In Plane Switching)
CRT native
Video card
analog digital
26. A DVI-A (digital video-analog) is used for an ________________. Some LCD monitors have either a D-sub or this connection.
30 99
LCD monitor that accepts an analog connection
F-type
Diagonal
27. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size.WUXGA = ____ x ____.
16:9
1920 1200
Aspect ratio
Refresh
28. ____ displays have a 4:3 aspect ratio (used in CRT displays).
CCFL (Cold Cathode Fluorescent Lamp)
Normal
CCFL (Cold Cathode Fluorescent Lamp)
Flat displays
29. 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.
6
Higher sharper
4
2048 1536
30. ____ displays have a 4:3 aspect ratio (used in CRT displays).
Normal
Worse
VN (Twisted Nematic)
Brightness
31. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. XGA+ = ____ x ____.
Brightness
DVI-I (digital video-integrated)
1152 864
Response time
32. VA panels suffer from ____ that produces uneven colors across the display with loss of detail in dark scenes.
Aperture grill
HDTV
Higher sharper
Color shift
33. There are currently two methods used for the backlight - 2) ____ backlights provide brighter screens - lower power consumption - a wider color range - greater contrast - and mercury-free construction. They use DC power - eliminating the need for an i
Response time
DVI HDMI
LED (Light Emitting Diode)
D-sub
34. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
Response time
Diagonal
Flat displays
U V color
35. If you are concerned about dead pixels - review the ____ before purchasing.
Normal
CRT
Interlacing
Return policy
36. 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.
Response time
6
Physical effective
D-sub connector
37. The smaller the dot pitch - the more room there is for____ resolutions and the ____ a picture may be.
Higher sharper
Dead
Converter box
1152 864
38. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. SXGA+ = ____ x ____.
Analog output
Resolution
1400 1050
6
39. If you watch HDTV content (DVD movies) on a 16:10 monitor - the display will either be stretched slightly or have black bars (areas without video content) on the top and the bottom. If you want to optimize DVD viewing from your computer - consider pu
LCD
Flat displays
HDCP
16:9
40. ____ monitors use a single value for the screen size. These monitors can use the entire screen for displaying images - use a liquid crystal material and transistors to display images.
LCD
16:9
Aspect ratio
Y brightness
41. LCD displays are very delicate and occasionally a pixel fails to display properly (called a ____).
Brighter
Dual
4
Dead pixel
42. Single link DVI-D connectors can support 60 Hz up to ____ x ____ resolution.
1920 1080
1152 864
Pixel pitch
Color shift
43. 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.
Dead
1920 1200
Y brightness
IPS (In Plane Switching)
44. The ____ refers to the difference in light intensity between the brightest white and the darkest black. An example is 1000:1. A higher initial number indicates a better quality picture.
Analog CRT monitor
Contrast ratio
CRT native
TV-tuner
45. ____ panels have relatively slow response times (6ms to 16ms) - and have a slight purple tint in blacks when viewed from a wide angle.
IPS (In Plane Switching)
Refresh
Color shift
DVI-A (digital video-analog)
46. Like HDMI - DisplayPort can send audio signals over the ______ (if audio is supported by the video card and monitor).
Interlacing
Same cable
Aspect ratio
DB-15
47. There are ____ to identify and possibly fix dead pixels on a monitor.
CRT
VN (Twisted Nematic)
Utilities
DVI-A connection
48. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
TFT (thin film transistor)
640 480
Flat displays
CRT
49. A DVI-A (digital video-analog) is used for an ________________. Some LCD monitors have either a D-sub or this connection.
LCD monitor that accepts an analog connection
4
Higher sharper
F-type
50. The ____ identifies the angle at which the image can still be seen. With LCD monitors - the image will be dimmer and colors distorted when viewed from an angle. It is described with two numbers: horizontal angle and vertical angle - with a higher num
Viewing angle
Interlacing
2048 1536
Diagonal
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