0 Exact answers 0 Text answers 310 Multiple-choice answers
Which of the following hardware components should be given priority in order to ensure optimal performance of a home server PC? (Select 2 answers)
High-end video
Gigabit NIC
Multicore processor
HDD RAID setup
Specialized audio
Which of the LCD technologies listed below offers the fastest response time?
Twisted Nematic (TN)
Cathode Ray Tube (CRT)
Ultra Extended Graphics Array (UXGA)
In-Plane Switching (IPS)
What are the characteristic features of
the In-Plane Switching (IPS) LCD panel technology? (Select 3 answers)
You left the correct answer unselected. High color quality
Fast response times
Wide viewing angles
Low color quality
Slow response times
Which of the following answers describe the features of the Twisted Nematic (TN) LCD panel technology? (Select 3 answers)
Low viewing angles
Fast response times
You left the correct answer unselected. Low color quality
High color quality
Slow response times
Which of the acronyms listed below refers to an LCD panel taking advantage of fluorescent lamps?
Which of the following answers describe the function of a power inverter? (Select 2
answers)
Converts AC power into DC power
Used for supplying voltage to backlights of an LCD panel
Converts DC power into AC power
Used for supplying voltage to backlights of an OLED display
Examples of devices posing risk to electrical safety due to accumulated high voltage include: (Select all that apply)
CRTs
Power supplies
Inverters
CPUs
Laser printers
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?
In computer graphics, the frequency at which the screen is redrawn is called:
Aspect ratio
Interlacing
Refresh
rate
Screen resolution
Which of the following statements are true? (Select all that apply)
You left the correct answer unselected. A digital image displayed on the graphics monitor screen consists of pixels arranged in rows
and columns
The term "screen resolution" refers to the maximum number of pixels in each dimension (horizontal and vertical) that can be addressed by a digital display device
In order to ensure the sharpest text and image displayed by a CRT monitor it is usually
recommended to set the monitor to run only at a specific resolution (which is also referred to as the CRT's native resolution)
You left the correct answer unselected. The smallest unit of a digital image represented on the digital display device is known as pixel
You left the
correct answer unselected. In order to ensure the sharpest text and image displayed by a LCD monitor it is usually recommended to set the monitor to run only at a specific resolution (which is also referred to as the LCD's native resolution)
What type of unit is used to describe the refresh rate of a computer screen?
Which of the following units is used for measuring the brightness of an image rendered by an image projector?
The brightness of an LCD display screen is measured in:
Which of the following countermeasures prevents shoulder surfing?
Cable locks
Video surveillance
Privacy filters
Security guards
Screensavers
A monitor filter used to reduce reflection from the surface of a CRT or LCD display is called:
Widescreen
Antiglare
Flat panel
Privacy filter
The relative horizontal and vertical size of a digital image displayed on the graphics monitor
screen is referred to as:
Frame rate
Screen resolution
Aspect ratio
Native resolution
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
1280 x 1024 resolution
16:10 aspect ratio
1024 x 768 resolution
5:4 aspect ratio
Display devices with aspect ratios of 16:10 and 16:9 are commonly referred to as:
UXGA displays
Fullscreen displays
Widescreen displays
WUXGA displays
The Super Extended Graphics Array (SXGA) display
standard features: (Select 2 answers)
1024 x 768 resolution
5:4 aspect ratio
1280 x 1024 resolution
16:10 aspect ratio
1920 x 1200 resolution
Which of the following answers refers to the standard display format for HDTV?
4:3 aspect ratio
5:4 aspect ratio
16:9 aspect ratio
16:10 aspect ratio
What are the characteristic features of the Ultra Extended Graphics Array (UXGA) display standard? (Select 2 answers)
16:10 aspect ratio
1920 x 1200 resolution
5:4 aspect ratio
4:3 aspect ratio
1600 x 1200 resolution
Which of the answers listed below refer to the Widescreen Ultra Extended Graphics Array (WUXGA) display standard (Select 2 answers)
16:10 aspect ratio
1600 x 1200 resolution
4:3 aspect ratio
1024 x 768 resolution
1920 x 1200 resolution
Which of the following display standards use(s) the 4:3 aspect ratio? (Select all that apply)
Which of the display standards listed below uses the 16:10 aspect ratio?
Examples
of connectors providing the capability for carrying both video and audio signals include: (Select 2 answers)
S-Video
S/PDIF
DVI-I
DisplayPort
HDMI
Which of the following answers refers to the features of DisplayPort?
Analog cideo connector
Audio only connector
Digital audio/video connector
Analog audio connector
Video only connector
Which of the connector types listed below are used with coaxial cabling? (Select 2 answers)
ST
MT-RJ
BNC
LC
F-connector
The PS/2 connector is a 6-pin Mini-DIN connector used for connecting: (Select all that apply)
Modem
Sound
card
Mouse
Hard drive
Keyboard
In computer security, the term "Biometrics" refers to physical characteristics of the human
body that can be used for identification and access control purposes.
True
False
Which of the following are biometric devices? (Select all that apply)
Retinal scanner
Flatbed scanner
Iris scanner
Barcode
reader
Fingerprint reader
Which of the answers listed below refer(s) to the function of digitizer? (Select all that apply)
Translates analog data into a format suitable for computer processing
Output device
An example of motion detector device
Component of a mobile device's screen that allows to control the device with a fingertip
Input device
Common areas of implementation of smart card reader devices include: (Select 2 answers)
Physical security
Mobile devices
Computer networking
Digital security
Commerce
Which of the following display types does not use an inverter choose two?
LED - is a backlighting system which does not use an inverter, and instead of a fluorescent tube it uses a strip of LEDs (Light Emitting Diodes). So in essence there two types of laptop screens: LCD-CCFL and LCD-LED: these screens are NOT INTERCHANGEABLE.
What displays use an inverter?
A screen inverter is a small circuit board in a laptop computer that passes a power current from the body of the machine to the attached liquid crystal display (LCD) screen.
Which type of laptop backlight generally does not require the use of an inverter?
Less commonly, some laptops use white light emitting diodes (LEDs) to provide the backlight. These laptops do not require an inverter at all, since the LEDs can take their power directly from the laptop's motherboard.
Which of the following are used on a laptop to provide power for the fluorescent backlight?
A typical laptop display uses a tiny Cold Cathode Fluorescent Lamp (CCFL) for the backlight. One of these small tubes is able to provide a bright white light source that can be diffused by the panel behind the LCD. In addition to providing ample light, CCFLs do not rise far above the ambient temperature.