WGU D316 IT FOUNDATIONS
COMPREHENSIVE EXAM QUESTIONS AND
SOLUTIONS STUDY GUIDE
●● TN
Answer: Twisted Nematic, a type of LCD panel known for fast response
times but limited viewing angles.
●● VA
Answer: Vertical Alignment, a type of LCD panel that offers better
contrast ratios and viewing angles than TN panels.
●● OLED
Answer: Organic Light Emitting Diode, a display technology that
provides high contrast and vibrant colors.
●● Mini-LED
Answer: A technology that uses smaller LEDs for backlighting LCDs,
improving contrast and brightness.
●● Resolution
Answer: The number of pixels displayed on a screen, typically expressed
as width x height.
,●● Refresh Rate
Answer: The number of times a display updates its image per second,
measured in Hertz (Hz).
●● Pixel Density
Answer: The number of pixels per inch (PPI) on a display, affecting
clarity and detail.
●● Color Gamut
Answer: The range of colors that a display can reproduce.
●● Digitizer
Answer: A device that converts analog signals into digital data, often
used in touchscreens.
●● Inverter
Answer: A device that converts DC to AC, commonly used in LCD
backlighting.
●● RJ45
Answer: A type of connector used for Ethernet networking.
, ●● RJ11
Answer: A type of connector used for telephone lines.
●● F-type
Answer: A connector used for coaxial cable, commonly used in cable
television.
●● LC/SC/ST
Answer: Types of fiber optic connectors used for connecting fiber
cables.
●● HDMI
Answer: High-Definition Multimedia Interface, a standard for
transmitting video and audio data.
●● DisplayPort
Answer: A digital display interface used to connect a video source to a
display device.
●● DVI
Answer: Digital Visual Interface, a video display interface that can
transmit uncompressed digital video.
COMPREHENSIVE EXAM QUESTIONS AND
SOLUTIONS STUDY GUIDE
●● TN
Answer: Twisted Nematic, a type of LCD panel known for fast response
times but limited viewing angles.
●● VA
Answer: Vertical Alignment, a type of LCD panel that offers better
contrast ratios and viewing angles than TN panels.
●● OLED
Answer: Organic Light Emitting Diode, a display technology that
provides high contrast and vibrant colors.
●● Mini-LED
Answer: A technology that uses smaller LEDs for backlighting LCDs,
improving contrast and brightness.
●● Resolution
Answer: The number of pixels displayed on a screen, typically expressed
as width x height.
,●● Refresh Rate
Answer: The number of times a display updates its image per second,
measured in Hertz (Hz).
●● Pixel Density
Answer: The number of pixels per inch (PPI) on a display, affecting
clarity and detail.
●● Color Gamut
Answer: The range of colors that a display can reproduce.
●● Digitizer
Answer: A device that converts analog signals into digital data, often
used in touchscreens.
●● Inverter
Answer: A device that converts DC to AC, commonly used in LCD
backlighting.
●● RJ45
Answer: A type of connector used for Ethernet networking.
, ●● RJ11
Answer: A type of connector used for telephone lines.
●● F-type
Answer: A connector used for coaxial cable, commonly used in cable
television.
●● LC/SC/ST
Answer: Types of fiber optic connectors used for connecting fiber
cables.
●● HDMI
Answer: High-Definition Multimedia Interface, a standard for
transmitting video and audio data.
●● DisplayPort
Answer: A digital display interface used to connect a video source to a
display device.
●● DVI
Answer: Digital Visual Interface, a video display interface that can
transmit uncompressed digital video.
