COMPTIA A+ Display Devices
Which of the display standards listed below uses the 16:10 aspect ratio?
WUXGA
The brightness of an LCD display screen is measured in:
cd/m2
Examples of devices posing risk to electrical safety due to accumulated high voltage include: (Select all that apply)
CRTs, Power supplies, Inverters, Laser printers
Which of the answers listed below refer to the Widescreen Ultra Extended Graphics Array (WUXGA) display standard (Select 2 answers)
16:10 aspect ratio, 1920 x 1200 resolution
Which of the following answers refers to the standard display format for HDTV?
16:9 aspect ratio
Which of the answers listed below refer to the characteristics of the Extended Graphics Array (XGA) display standard? (Select 2 answers)
4:3 aspect ratio, 1024 x 768 resolution
A dim display on a laptop LCD screen might indicate a problem related to: (Select 2 answers)
Backlight, Inverter
A permanent computer display screen discoloration caused by displaying the same static image for extended periods of time is known as:
Burn-in
Which of the acronyms listed below refers to an LCD panel taking advantage of fluorescent lamps?
CCFL
(T or F) A tiny spot on an LCD monitor display screen that permanently remains black when it should be activated and displaying color is commonly referred to as stuck pixel.
False
What type of unit is used to describe the refresh rate of a computer screen?
Hz
What are the characteristic features of the following? High color quality, Wide viewing angles,Slow response times
In-Plane Switching (IPS) LCD panel technology
When a computer monitor is unable to display image on the screen, the most common causes (and the easiest ones to fix) for this problem include: (Select 2 answers)
Loose cable connections, Wrong input selection
Which of the following units is used for measuring the brightness of an image rendered by an image projector?
Lumen
Which of the acronyms listed below refers to a new type of thin and lightweight display devices offering higher contrast ratio and color quality in comparison to LCD without the need for a special light source to produce a visible image?
OLED
Which of the following countermeasures prevents shoulder surfing?
Privacy filters
In computer graphics, the frequency at which the screen is redrawn is called:
Refresh rate
Which of the actions listed below should be of help while troubleshooting non-responsive touchscreen of a mobile device?
Removing screen protector and cleaning the screen, Pressing a specific key combination/button to perform system restart (soft reset), Erasing all content/settings and restoring the device to factory defaults (factory reset/hard reset), Reseating the device's battery
(T or F) Screen Resolution is a Windows utility used for changing the appearance of connected displays. The tool includes a feature that allows to click and drag a graphical representation of connected display device which in turn enables troubleshooting of multiple monitor misalignment/orientation issues.
True
Which of the LCD technologies listed below offers the fastest response time?
Twisted Nematic (TN)
What are the characteristic features of the following? Low color quality, Fast response times, Low viewing angles
Twisted Nematic (TN) LCD panel technology?
Display devices with aspect ratios of 16:10 and 16:9 are commonly referred to as:
Widescreen displays
Which of the following display standards use(s) the 4:3 aspect ratio? (Select all that apply)
XGA, UXGA
What are the characteristic features of the following? Used for supplying voltage to backlights of an LCD panel, Converts DC power into AC power
power inverter
What are the characteristic features of the Ultra Extended Graphics Array (UXGA) display standard? (Select 2 answers)
4:3 aspect ratio, 1600 x 1200 resolution
The Super Extended Graphics Array (SXGA) display standard features: (Select 2 answers)
5:4 aspect ratio, 1280 x 1024 resolution
A monitor filter used to reduce reflection from the surface of a CRT or LCD display is called:
Antiglare
The relative horizontal and vertical size of a digital image displayed on the graphics monitor screen is referred to as:
Aspect ratio
Which of the terms listed below refers to the distorted display geometry issue?
Aspect ratio
