# A+ Essentials Chapter 17

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Darren McMahon
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Quizzes Created: 20 | Total Attempts: 13,044
Questions: 9 | Attempts: 392

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In this chapter, you will learn how to

• Explain how video displays work
• Select the proper video card
• Install and configure video software
• Troubleshoot basic video problems

• 1.

### What term refers to the amount of time it takes to draw an entire screen andget the electron guns back to the upper-left corner?

• A.

Horizontal refresh rate

• B.

Horizontal redraw rate

• C.

Vertical refresh rate

• D.

Vertical redraw rate

C. Vertical refresh rate
Explanation
The vertical refresh rate is the amount of time it takes to draw the entire
screen and get the electron guns back to the upper-left corner.

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• 2.

### What does the dot pitch signify about a CRT monitor?

• A.

The resolution, such as 1024 × 768

• B.

The sharpness of the picture, such as 0.31 or 0.18

• C.

The maximum refresh rate, such as 100 Hz

• D.

The minimum refresh rate, such as 60 Hz

B. The sharpness of the picture, such as 0.31 or 0.18
Explanation
The dot pitch, measured in millimeters, tells you how fine the screen
will be.

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• 3.

### On an LCD monitor, what is the technology that uses a matrix of wires undercolored glass?

• A.

Active matrix

• B.

Passive matrix

• C.

Active TFT

• D.

Passive TFT

B. Passive matrix
Explanation
Passive matrix technology uses a matrix of wires under colored glass.

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• 4.

### What provides the illumination for LCD monitors?

• A.

Backlights

• B.

Inverter

• C.

Lamp

• D.

LCD panel

A. Backlights
Explanation
The backlights provide the illumination for the LCD panel.

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• 5.

### Which statement best describes the difference, if any, between CRT and LCDresolution?

• A.

The CRT has a single native resolution; LCDs have no native resolution.

• B.

The CRT has three native resolutions; LCDs have no native resolution.

• C.

The CRT has no native resolution; LCDs have three native resolutions.

• D.

The CRT has no native resolution; LCDs have a single native resolution.

D. The CRT has no native resolution; LCDs have a single native resolution.
Explanation
The CRT has no native resolution; LCDs have a single native resolution.

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• 6.

### Which typically uses more wattage?

• A.

CRT

• B.

DVI

• C.

LCD

• D.

VGA

A. CRT
Explanation
CRTs use a lot more wattage than LCDs.

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• 7.

### What is the processor on a video card called?

• A.

CPU

• B.

GPU

• C.

GDDR

• D.

MPU

B. GPU
Explanation
You’ll typically see video card processors referred to as GPUs.

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• 8.

### What Microsoft API supports 3-D graphics?

• A.

Active Desktop

• B.

DirectX

• C.

Glide

• D.

OpenGL

B. DirectX
Explanation
Microsoft makes the DirectX API to support 3-D programs.

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• 9.

• A.

Go to Start | Run and type DISPLAY to open the Display applet.

• B.

Go to Start | Run and type MSCONFIG to open the Display applet.

• C.

Go to Start | Control Panel and double-click the Display applet icon.

• D.

Go to Start | All Programs and select the Display applet icon.

C. Go to Start | Control Panel and double-click the Display applet icon.
Explanation
The Display applet is part of the Control Panel.

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• Current Version
• Mar 18, 2023
Quiz Edited by
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• Oct 23, 2008
Quiz Created by
Darren McMahon

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