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Test your basic knowledge |
Comptia A +: Hardware Display Devices
Start Test
Study First
Subjects
:
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. 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.
CRT
Analog
VA (Vertical Alignment)
Response time
2. 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.
Interlacing
Response time
Viewing angle
30 99
3. Dual link DVI-D can support 60 Hz up to ____ x ____ resolution.
2048 1536
800 600
CCFL (Cold Cathode Fluorescent Lamp)
DVI-A (digital video-analog)
4. 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
Return policy
4:3
Shadow mask
1024 768
5. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. VGA = ____ x ____.
640 480
Response time
4:3
Higher sharper
6. ____ is drawing the screen in two passes; odd lines on the first and then the even lines on the second pass.
VA (Vertical Alignment)
Static
1920 1200
Interlacing
7. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. UXGA = ____ x ____.
Dynamic
Contrast ratio
CRT
1600 1200
8. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
Dot pitch
Shadow mask
perture grill
Single link
9. A ____ connection on a video card provides analog output and are rarely (if ever) used for computers monitors - but might be used on some HDTV systems.
Brighter
1152 864
DVI-A (digital video-analog)
Flat displays
10. The ____ is the ratio of the width and the height.
Response time
Response time
Aspect ratio
Analog output
11. The magnetic field used for drawing the image on the screen can cause a buildup of magnetism on internal monitor components. This magnetic field can cause color distortions - especially around the edges. To correct this problem - use the ____ feature
4:3
Pixels
Degauss
Converter box
12. You can use a DVI-to-HDMI cable to connect the ____ output from a video card to a monitor or an HDTV device that has an HDMI connector. However - this configuration only supplies video - and not audio - to the display device.
Composite
DVI-A connection
DVI-D (digital video-digital)
External
13. 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.
1920 1200
DB-15
1680 1050
Response time
14. A ____ screen is typically desired for watching movies - or on laptops where the screen is viewed in full sunlight.
640 480
Brighter
D-sub connector
Resolution
15. 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
Single source
Response time
LED (Light Emitting Diode)
Pixel pitch
16. The ____ indicates how quickly a pixel can go from black - to white - and back to black and is indicated in milliseconds (ms).
VN (Twisted Nematic)
Response time
Viewing angle
1280 1024
17. DVI-D ____ link cable.
DB-15
DVI-D (digital video-digital)
LCD
Single
18. On a(n) ____ monitor you might be able to see two horizontal lines running across the display. These lines are the wires that are used to dynamically change the grill opening.
Analog output
perture grill
Speakers USB
IPS (In Plane Switching)
19. The ____ is the distance between pixels. A lower number means a sharper image and possibly higher resolutions.
Composite
Pixel pitch
Interlacing
DB-15
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.
External
Progressive scanning
Interlacing
CCFL (Cold Cathode Fluorescent Lamp)
21. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. XGA = ____ x ____.
DB-15
1920 1200
1024 768
Normal
22. A ____ connection on a video card provides digital output. These connections are rated as either single link or dual link.
CRT native
1920 1200
1024 768
DVI-D (digital video-digital)
23. LCD displays are very delicate and occasionally a pixel fails to display properly (called a ____).
Speakers USB
LED (Light Emitting Diode)
Return policy
Dead pixel
24. 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.
Interlacing
Worse
Response time
Contrast ratio
25. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
Single source
D-sub connector
Dynamic
Analog CRT monitor
26. S-video (separate-video - Y/C - or S-VHS) connections are present on many video cards and supply ____ - video-only TV output.
CRT native
Analog
Progressive scanning
DisplayPort
27. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
Aspect ratio
D-sub connector
TFT (thin film transistor)
Dot pitch
28. There are ____ to identify and possibly fix dead pixels on a monitor.
Diagonal
1024 768
Screen
Utilities
29. Having a few dead ____ can be common on many displays.
Dual link
Pixels
6
Dual
30. A ____ screen is typically desired for watching movies - or on laptops where the screen is viewed in full sunlight.
Single
Refresh
DVI-D (digital video-digital)
Brighter
31. 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.
VA (Vertical Alignment)
DMS-59
analog digital
Widescreen
32. The magnetic field used for drawing the image on the screen can cause a buildup of magnetism on internal monitor components. This magnetic field can cause color distortions - especially around the edges. To correct this problem - use the ____ feature
Dot pitch
Degauss
External
800 600
33. 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
DB-15
1680 1050
Brightness
Brighter
34. ____ 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
Screen
CRT
Splits the signal
35. If you are concerned about dead pixels - review the ____ before purchasing.
Return policy
both video and audio input
Pixel pitch
Converter
36. Single link DVI-D connectors can support 60 Hz up to ____ x ____ resolution.
1920 1080
640 480
both video and audio input
Video card
37. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
VA (Vertical Alignment)
Dot pitch
1024 768
Interlacing
38. A ____ connection on a video card provides analog - video-only TV output. These video connectors are RCA connectors (typically yellow).
Widescreen
Composite video
Dot pitch
DVI-I (digital video-integrated)
39. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size.WUXGA = ____ x ____.
Aspect ratio
1920 1200
Backlight
6
40. Because ____ monitors have better color reproduction than TN monitors and are cheaper than IPS monitors - they are still used by many graphic artists.
Progressive scanning
CRT
VA (Vertical Alignment)
Analog CRT monitor
41. Increasingly - the difference between an LCD monitor and an HDTV is being blurred. You can purchase an HDTV that can also function as a monitor - or a monitor that can function as a TV. Resolutions used by HDTV are: ____ and ____.
HDMI (High-Definition Multimedia Interface)
1280x720 1920x1080
1920 1200
D-sub connector
42. 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.
Single link
Physical effective
Better
IPS (In Plane Switching)
43. Monitor size is typically described using a ____ measurement.
Laptop
Diagonal
HDCP
Splits the signal
44. 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.
Response time
D-sub
D-sub DVI-A
Resolution
45. The ____ is the number of pixels - and is expressed using two numbers: the number of horizontal rows and vertical columns.
720p 1080i
Resolution
Contrast ratio
1680 1050
46. 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
CRT
G2G (grey-to-grey - or GTG)
720p 1080i
47. ____ panels are the most expensive type of panel - and could be difficult to find.
IPS (In Plane Switching)
VA (Vertical Alignment)
Backlight
Static
48. 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.
Converter
Video card
Progressive scanning
HDTV
49. Single link DVI-D connectors can support 60 Hz up to ____ x ____ resolution.
Aperture grill
Backlight
Single link
1920 1080
50. 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.
Brightness
Degauss
Widescreen
Backlight