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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.
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. ____ is drawing the screen in two passes; odd lines on the first and then the even lines on the second pass.
Dual
both video and audio input
Shadow mask
Interlacing
2. 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.
Y brightness
DVI-D (digital video-digital)
IPS (In Plane Switching)
VN (Twisted Nematic)
3. ____ 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
Single link
Video card
Brighter
4. 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)
Color shift
16:9
Converter box
5. You can connect an analog CRT or LCD monitor to a video card with a DVI-I connector. This requires a cable with a ____ connection on one end and a ____ connection on the other end.
Brightness
Response time
D-sub DVI-A
DB-15
6. LCD monitors often include features for HDTV support such as support for ____ to watch copy-protected content.
4:3
DB-15
HDCP
6
7. An ____ connector supplies analog - video-only TV output in three separate channels: R (red) - G (green) - and B (blue).
Response time
HDTV
Flat displays
Brightness
8. 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.
Contrast ratio
4
Dot pitch
Refresh
9. DisplayPort is also an internal video interface used by ____ displays to interface with internal video cards.
External
Resolution
VN (Twisted Nematic)
Laptop
10. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. WSXGA+ = ____ x ____. UXGA = 1600 x 1200 WUXGA = 1920 x 1200
Color shift
TFT (thin film transistor)
1680 1050
4:3
11. LDC monitors use ____ panels that are the most common type used in computer monitors - especially in smaller sizes. These panels have very good response times (2ms to 5ms) - so are well-suited for games with a lot of motion.
Return policy
VN (Twisted Nematic)
DVI-D (digital video-digital)
Viewing angle
12. ____ 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.
1280x720 1920x1080
Dead
Y brightness
LCD
13. The ____ connection has all of the pins present in both the DVI-A and DVI-D connections. Most video cards and many LCD monitors have this connection.
Single link
DVI-I (digital video-integrated)
Converter box
Diagonal
14. ____ 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)
7
1280x720 1920x1080
Dot pitch
15. ____ displays have a 4:3 aspect ratio (used in CRT displays).
720p 1080i
Resolution
Degauss
Normal
16. The ____ is the ratio of the width and the height.
LED (Light Emitting Diode)
VN (Twisted Nematic)
Better
Aspect ratio
17. 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.
G2G (grey-to-grey - or GTG)
Brighter
Widescreen
HDCP
18. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
Worse
Dot pitch
Converter box
Backlight
19. A ____ screen is typically desired for watching movies - or on laptops where the screen is viewed in full sunlight.
CCFL (Cold Cathode Fluorescent Lamp)
Brighter
Color shift
Backlight
20. ____ panels have relatively slow response times (6ms to 16ms) - and have a slight purple tint in blacks when viewed from a wide angle.
Viewing angle
IPS (In Plane Switching)
Higher sharper
Aspect ratio
21. A ____ connection on a video card provides both analog and digital output.
CRT
DVI-I (digital video-integrated)
Return policy
Aperture grill
22. 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
LED (Light Emitting Diode)
1152 864
7
CRT
23. DisplayPort uses a digital-only signal. To connect a VGA monitor to it - you will need a special active ____ that reformats the signal for analog devices.
Pixel pitch
Speakers USB
External
Converter
24. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
Worse
Contrast ratio
Aspect ratio
Dynamic
25. 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.
Widescreen
D-sub DVI-A
HDCP
Utilities
26. The D-sub connector on a video card provides....
800 600
Higher sharper
Analog output
Dual
27. 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
Color shift
1920 1200
1920 1200
28. ____ monitors will typically list the monitor size along with the viewable image size which is smaller than the total screen size. Because of how the monitor is made - not all of the available screen size can actually display an image.
Converter box
CRT
1920 1200
Normal
29. Most manufactures have started using a ____ measure of response time - which makes the response time faster than a white-to-black response time.
Dead pixel
Laptop
G2G (grey-to-grey - or GTG)
Return policy
30. LCD monitors often include features for HDTV support such as support for ____ to watch copy-protected content.
HDCP
Composite
CRT
Progressive scanning
31. Single link DVI-D connectors can support 60 Hz up to ____ x ____ resolution.
Refresh
Degauss
D-sub DVI-A
1920 1080
32. ____ (1280 x 720 progressive scan) and ____ (1920 x 1080 with interlacing) identify displays that do not support full HD content - with both 720p and 1080i being comparable in quality.
TFT (thin film transistor)
Debris
Backlight
720p 1080i
33. 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
Physical effective
16:9
Interlacing
Color shift
34. CRT monitors with DVI-D connectors are possible but rare. This means that the CRT monitor accepts ____ input.
Digital
Utilities
1152 864
Higher sharper
35. 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.
CRT
HDTV
CCFL (Cold Cathode Fluorescent Lamp)
F-type
36. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
1680 1050
DVI HDMI
Utilities
Dynamic
37. VA panels suffer from ____ that produces uneven colors across the display with loss of detail in dark scenes.
Color shift
DVI-D (digital video-digital)
Better
Debris
38. 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
D-sub DVI-A
VN (Twisted Nematic)
16:9
4
39. 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
LED (Light Emitting Diode)
Brightness
IPS (In Plane Switching)
1024 768
40. The smaller the dot pitch - the more room there is for____ resolutions and the ____ a picture may be.
Speakers USB
Analog output
RCA
Higher sharper
41. The ____ is the distance between pixels. A lower number means a sharper image and possibly higher resolutions.
Pixel pitch
1024 768
Higher voltage
S-video
42. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
Debris
Separately
16:9
Flat displays
43. Because ____ monitors have better color reproduction than TN monitors and are cheaper than IPS monitors - they are still used by many graphic artists.
Composite
CRT
CRT native
1600 1200
44. TN panels have ____ viewing angles and contrast ratios than the other display types.
Worse
Color shift
1600 1200
DisplayPort
45. 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.
External
Resolution
7
CCFL (Cold Cathode Fluorescent Lamp)
46. ____ female port.
Brighter
Response time
DVI-D (digital video-digital)
Analog CRT monitor
47. S-video can easily be converted to composite video by combining the ____ and ____ channels into a single signal.
Y UV
Dual
Speakers USB
DB-15
48. 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.
Response time
External
Flat displays
Diagonal
49. 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.
Dead
1280 1024
Speakers USB
800 600
50. 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
800 600
30 99
Color shift
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