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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. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
1920 1080
Response time
Dynamic
1920 1200
2. LCD displays are very delicate and occasionally a pixel fails to display properly (called a ____).
1680 1050
Dead pixel
DB-15
Static
3. 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
16:9
Higher sharper
Aspect ratio
DVI-D (digital video-digital)
4. 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
Widescreen
Progressive scanning
1920 1080
Degauss
5. 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 ____.
640 480
Adapter
G2G (grey-to-grey - or GTG)
VN (Twisted Nematic)
6. Because of how the ____ monitor works - portions of the display tube cannot be used for displaying the image.
CRT
G2G (grey-to-grey - or GTG)
DVI HDMI
DisplayPort
7. ____ panels are the most expensive type of panel - and could be difficult to find.
IPS (In Plane Switching)
Flat displays
External
Dual link
8. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
HDTV
Flat displays
Higher sharper
VA (Vertical Alignment)
9. The ____ contrast ratio indicates the difference that can be displayed at the same time.
640 480
Degauss
Static
Interlacing
10. ____ panels have the best color reproduction quality and viewing angles of the display types - and are well suited for graphic design where full and accurate color representation is required.
IPS (In Plane Switching)
30 99
Flat displays
Dual link
11. The ____ contrast ratio indicates the difference that can be displayed at the same time.
VA (Vertical Alignment)
Static
Pixels
Progressive scanning
12. ____ DVI-D connectors have 3 rows of 8 pins plus the horizontal pin (often called a 25-pin - 24+1-pin - or 24-pin connector).
Dual
Dual link
DisplayPort
1152 864
13. 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.
CCFL (Cold Cathode Fluorescent Lamp)
2048 1536
TFT (thin film transistor)
Interlacing
14. ____ link allows for longer cable lengths and a higher video resolution and you should choose this type of video card whenever possible.
G2G (grey-to-grey - or GTG)
Backlight
Y brightness
Dual
15. 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.
Screen
Converter box
6
Dual
16. 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.
1680 1050
640 480
DVI-I (digital video-integrated)
S-video
17. ____ link allows for longer cable lengths and a higher video resolution and you should choose this type of video card whenever possible.
Video card
Dual
DVI-I (digital video-integrated)
CCFL (Cold Cathode Fluorescent Lamp)
18. ____ displays have a 4:3 aspect ratio (used in CRT displays).
Interlacing
Shadow mask
Worse
Normal
19. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. UXGA = ____ x ____.
1280 1024
1600 1200
1920 1200
Dynamic
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.
Brightness
CCFL (Cold Cathode Fluorescent Lamp)
Physical effective
TFT (thin film transistor)
21. If you are concerned about dead pixels - review the ____ before purchasing.
IPS (In Plane Switching)
Dead
Return policy
1920 1080
22. CRT monitors with DVI-D connectors are possible but rare. This means that the CRT monitor accepts ____ input.
DisplayPort
Digital
Better
Dead
23. 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.
External
Contrast ratio
VA (Vertical Alignment)
Y brightness
24. It is common for ____ monitors to support a wide number of resolutions - but LCD monitors often have a____ (optimum) display resolution.
CRT native
640 480
Aperture grill
2048 1536
25. 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.
Widescreen
Converter
7
Widescreen
26. ____ 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.
Physical effective
Pixel pitch
Brightness
LED (Light Emitting Diode)
27. The HDTV connector uses a ____-pin mini-din cable.
Video card
7
IPS (In Plane Switching)
Flat displays
28. ____ 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.
Adapter
Backlight
1920 1200
LCD
29. Because of how the ____ monitor works - portions of the display tube cannot be used for displaying the image.
G2G (grey-to-grey - or GTG)
Analog output
CRT
1600 1200
30. 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.
Color shift
D-sub
CCFL (Cold Cathode Fluorescent Lamp)
Progressive scanning
31. LCD monitors often include features for HDTV support such as an HDMI input that accepts ____________ through the HDMI port.
both video and audio input
1280x720 1920x1080
DisplayPort
D-sub
32. LCD monitors often include features for HDTV support such as support for ____ to watch copy-protected content.
TFT (thin film transistor)
DB-15
2048 1536
HDCP
33. Common resolutions are often described using a naming standard - although these standards encompass much more than just resolution size. SXGA+ = ____ x ____.
640 480
D-sub
External
1400 1050
34. 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.
IPS (In Plane Switching)
CRT
DVI-A (digital video-analog)
LCD
35. DVI-D ____ link cable.
D-sub connector
720p 1080i
CCFL (Cold Cathode Fluorescent Lamp)
Dual
36. A DVI-A (digital video-analog) is used for an ____________. Use a cable with a D-sub connection on one end and this connection on the other end to connect to the monitor.
Analog CRT monitor
Dynamic
Video card
Interlacing
37. A ____ connection on a video card provides digital output. These connections are rated as either single link or dual link.
External
DVI-D (digital video-digital)
DB-15
Response time
38. The ____ is the distance between pixels. A lower number means a sharper image and possibly higher resolutions.
Resolution
Degauss
Pixel pitch
Normal
39. 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
Single source
IPS (In Plane Switching)
External
1024 768
40. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
Static
Flat displays
Brightness
Video card
41. 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
Pixel pitch
Contrast ratio
1680 1050
CRT native
42. VA panels suffer from ____ that produces uneven colors across the display with loss of detail in dark scenes.
800 600
Color shift
TFT (thin film transistor)
Composite
43. Some LCD monitors have a D-sub connection - or you might need a cable with this connection on one end and a _______ on the other end to connect to the LCD monitor.
640 480
Dual
Static
DVI-A connection
44. Most manufactures have started using a ____ measure of response time - which makes the response time faster than a white-to-black response time.
G2G (grey-to-grey - or GTG)
Brightness
Refresh
Converter box
45. ____ on the screen can be mistaken for a dead pixel.
1024 768
HDCP
Video card
Debris
46. ____ 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.
1920 1200
Brightness
F-type
CRT
47. 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.
Flat displays
Higher sharper
DB-15
4:3
48. ____ panels offer the best contrast ratios of the display types - and are well suited for movies that require good contrast.
Worse
Worse
VA (Vertical Alignment)
Color shift
49. 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
CRT
CCFL (Cold Cathode Fluorescent Lamp)
Resolution
LED (Light Emitting Diode)
50. The ____ is the number of pixels - and is expressed using two numbers: the number of horizontal rows and vertical columns.
Viewing angle
Contrast ratio
Resolution
Shadow mask
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