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Test your basic knowledge |
Comptia A +: Hardware Display Devices
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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
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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 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
Dynamic
640 480
Composite
Shadow mask
2. There are two methods of controlling the illumination of the phosphor - 2) an ____ consists of a screen of ultra thin vertical and horizontal wires. This configuration allows more electrons through resulting in a richer color display.
Interlacing
Aperture grill
Diagonal
4:3
3. DisplayPort is also an internal video interface used by ____ displays to interface with internal video cards.
HDTV
1920 1200
Laptop
Composite video
4. ____ are tube monitors with a flatter glass tube that results in an image with less distortion around the edges.
2048 1536
DB-15
Brighter
Flat displays
5. It is common for ____ monitors to support a wide number of resolutions - but LCD monitors often have a____ (optimum) display resolution.
DVI-A connection
CRT native
Brighter
720p 1080i
6. ____ panels have relatively slow response times (6ms to 16ms) - and have a slight purple tint in blacks when viewed from a wide angle.
Flat displays
800 600
IPS (In Plane Switching)
HDTV
7. 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
Digital
Degauss
30 99
Normal
8. ____ displays have a 4:3 aspect ratio (used in CRT displays).
Normal
Widescreen
Higher voltage
Dot pitch
9. You can only connect a digital monitor to a DVI-D connector. Connecting an analog monitor - such as a CRT monitor - is only possible by using a special ____.
1920 1200
TFT (thin film transistor)
Response time
Converter box
10. A ____ connection on a video card provides both analog and digital output.
IPS (In Plane Switching)
IPS (In Plane Switching)
CRT native
DVI-I (digital video-integrated)
11. Because ____ monitors have better color reproduction than TN monitors and are cheaper than IPS monitors - they are still used by many graphic artists.
Physical effective
Progressive scanning
Pixel pitch
CRT
12. 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).
1280 1024
Response time
TFT (thin film transistor)
1920 1200
13. The ____ is the number of pixels - and is expressed using two numbers: the number of horizontal rows and vertical columns.
G2G (grey-to-grey - or GTG)
Resolution
Response time
LED (Light Emitting Diode)
14. LCD displays are very delicate and occasionally a pixel fails to display properly (called a ____).
perture grill
Composite video
CCFL (Cold Cathode Fluorescent Lamp)
Dead pixel
15. 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
1024 768
Diagonal
Better
1680 1050
16. The ____ is the distance between pixels measured in millimeters. The standard in color monitors in about .15 mm to .30 mm.
Dot pitch
D-sub connector
1280 1024
both video and audio input
17. 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.
Speakers USB
30 99
Resolution
Screen
18. 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.
Contrast ratio
Brighter
Color shift
16:9
19. 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.
S-video
Aspect ratio
HDMI (High-Definition Multimedia Interface)
perture grill
20. The ____ is the number of pixels - and is expressed using two numbers: the number of horizontal rows and vertical columns.
Interlacing
DVI-A connection
Video card
Resolution
21. The ____ is the distance between pixels. A lower number means a sharper image and possibly higher resolutions.
DVI-A connection
CRT
4:3
Pixel pitch
22. 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
Splits the signal
Composite
Degauss
4:3
23. 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
Color shift
IPS (In Plane Switching)
LED (Light Emitting Diode)
CRT
24. There are two methods of controlling the illumination of the phosphor - 2) an ____ consists of a screen of ultra thin vertical and horizontal wires. This configuration allows more electrons through resulting in a richer color display.
Dual
Aperture grill
720p 1080i
IPS (In Plane Switching)
25. 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.
Worse
TFT (thin film transistor)
perture grill
Analog output
26. The D-sub connector on a video card provides....
Higher voltage
720p 1080i
Analog output
Resolution
27. Because of how the ____ monitor works - portions of the display tube cannot be used for displaying the image.
CRT
Aspect ratio
30 99
DVI-D (digital video-digital)
28. Because of how the ____ monitor works - portions of the display tube cannot be used for displaying the image.
16:9
VA (Vertical Alignment)
CRT
D-sub connector
29. A ____ screen is typically desired for watching movies - or on laptops where the screen is viewed in full sunlight.
1280 1024
Brighter
Higher sharper
CRT native
30. Dual link DVI-D can support 60 Hz up to ____ x ____ resolution.
Separately
Progressive scanning
2048 1536
Digital
31. The ____ contrast ratio indicates the difference that the monitor is capable of producing.
30 99
6
D-sub DVI-A
Dynamic
32. LCD monitors often include features for HDTV support such as support for ____ to watch copy-protected content.
1600 1200
1680 1050
HDCP
IPS (In Plane Switching)
33. The ____ contrast ratio indicates the difference that can be displayed at the same time.
1680 1050
30 99
16:9
Static
34. Because of how the ____ monitor works - portions of the display tube cannot be used for displaying the image.
Better
CRT
CCFL (Cold Cathode Fluorescent Lamp)
TFT (thin film transistor)
35. 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.
perture grill
D-sub
Normal
Dot pitch
36. ____ link allows for longer cable lengths and a higher video resolution and you should choose this type of video card whenever possible.
DB-15
Aspect ratio
Dual
Converter box
37. The ____ indicates how quickly a pixel can go from black - to white - and back to black and is indicated in milliseconds (ms).
1280x720 1920x1080
CRT
Response time
Same cable
38. There are ____ to identify and possibly fix dead pixels on a monitor.
Higher sharper
Utilities
Progressive scanning
Aperture grill
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)
1680 1050
D-sub
DVI HDMI
40. For manufacturers - the ____ is royalty free - whereas including an HDMI connector requires a fee for each connector used. Manufacturers such as Dell and Apple are starting to use DisplayPorts in monitors and video cards - but these are not yet used
DisplayPort
1680 1050
CRT native
640 480
41. 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.
4
6
Analog output
DVI-A (digital video-analog)
42. The ____ indicates how quickly a pixel can go from black - to white - and back to black and is indicated in milliseconds (ms).
Dynamic
6
D-sub DVI-A
Response time
43. 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
Analog CRT monitor
External
Normal
perture grill
44. You can only connect a digital monitor to a DVI-D connector. Connecting an analog monitor - such as a CRT monitor - is only possible by using a special ____.
Converter box
1600 1200
D-sub connector
DB-15
45. 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.
D-sub DVI-A
1400 1050
VA (Vertical Alignment)
Dual
46. DVI-D ____ link cable.
Dual
Return policy
Backlight
Dot pitch
47. VA panels have ____ color reproduction and wider viewing angles than TN displays - but with slower response times and a higher cost.
1152 864
Interlacing
Better
Utilities
48. The ____ is the ratio of the width and the height.
Dual
4
Diagonal
Aspect ratio
49. 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.
Response time
Higher sharper
Progressive scanning
720p 1080i
50. ____ 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.
Better
TFT (thin film transistor)
CRT native
IPS (In Plane Switching)
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