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A+ Certification > Module 8 > Flashcards

Module 8 Flashcards

1
Q

T/F: Every installed device requires a device driver to control the device.

A

True

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2
Q

T/F: The official standard for USB interfaces is called IEEE 1394.

A

False

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3
Q

T/F: A KVM switch allows you to use one monitor, mouse, and keyboard for multiple computers.

A

True

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4
Q

T/F: DDR memory is faster than GDDR memory since it is used by the CPU.

A

False

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5
Q

T/F: A 32-bit driver can be used in a 64-bit operating system.

A

False

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6
Q

What icon might you see in Device Manager that indicates a problem with a device?

A

yellow triangle

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7
Q

What term refers to horizontally torn images on a screen, which occur when the video feed from the video controller gets out of sync with the refresh rate of the monitor?

A

artifacts

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8
Q

What type of backlighting receives DC power directly from a motherboard and doesn’t use an inverter?

A

LED

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9
Q

What type of backlighting is also called fluorescent backlighting, and was first used in laptop monitors?

A

CCFL

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10
Q

If a user on a laptop complains that they are unable to sign into Windows even though they are certain they are entering the correct password, what should you have them do?

A

check the NumLock indicator on the laptop

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11
Q

What might be the cause of a black screen right after you install a new video card?

A

the onboard video is not disabled in BIOS

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12
Q

Which statement regarding the Firewire standard is accurate?

A

FireWire devices are hot-swappable

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13
Q

Which of the following is a requirement for supporting the Aero user interface?

A

DirectX 9 or higher

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14
Q

What is the distance between adjacent dots on a screen known as?

A

pixel pitch

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15
Q

When installing a new device, which statement is accurate?

A

a mouse may not require an additional device driver installation

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16
Q

What happens when a flash memory card is installed in a slot and it is recognized by Windows?

A

a drive letter is assigned to the device and you can see it in Explorer

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17
Q

When a static image stays on a monitor for many hours leaving a permanent impression of that image on the monitor, what term is used to describe the condition?

A

burn-in

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18
Q

In order to enable the Windows 7 Aero user interface, how much video memory must be available to the video controller?

A

128MB

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19
Q

What is a basic principle that applies to both internal and external devices?

A

for most installations, install the device first, then the device driver

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20
Q

Which type of video port provides a digital-only signal?

A

DVI-D

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21
Q

Involving both software and hardware, what technology is meant to protect digital content and prevent piracy?

A

DRM

22
Q

What should you install in a server room that will save space by allowing you to control multiple servers with a single mouse, keyboard, and monitor?

A

a KVM switch

23
Q

A SuperSpeed USB port is capable of attaining what maximum data transfer speed?

A

5 Gbps

24
Q

When might an LCD monitor experience distorted geometry?

A

the screen is not set to native resolution

25
Q

Which statement regarding the USB standard and USB devices is accurate?

A

a USB cable has four wires, two for power and two for communication

26
Q

What two wireless technologies share the same radio frequency range?

A

802.11b

Bluetooth

27
Q

When using an HDMI to DVI adapter, what two DVI port types will the adapter work with?

A

DVI-D

DVI-I

28
Q

What two colored RCA connectors in a component video cable are used for audio?

A

red

white

29
Q

What are the two common classes of LCD monitors?

A 
Twisted Nematic (TN)
In-Plane Switching (IPS)
30
Q

VGA mode includes what two resolutions for troubleshooting monitors?

A

640 x 480

800 x 600

31
Q

infrared (IR)

A

an outdated wireless technology used to connect personal devices, has been replaced by Bluetooth

32
Q

digitizer

A

another term for graphics tablet, which is used to hand draw

33
Q

dxdiag.exe

A

used to display information about hardware and diagnose problems

34
Q

HDMI connector

A

transmits both digital video and audio, most common type is the Type A 19-pin

35
Q

OLED

A

uses a thin LED layer or film between two grids of electrodes

36
Q

projector

A

used to cast a transparent image onto a large screen

37
Q

refresh rate

A

the number of times a monitor screen is built or refreshed in one second

38
Q

stylus

A

used with a graphics tablet and works like a pencil

39
Q

contrast ratio

A

the relative difference between light and dark areas on a video screen

40
Q

ghost cursor

A

a trail left behind when you move the mouse

41
Q

What is MIDI?

A

musical instrument digital interface.

a set of standards that are used to represent music in digital form.

42
Q

What is DisplayPort?

A

designed to replace VGA, DVI, and HDMI.

can transmit digital video and audio.

43
Q

How does an OLED monitor work?

A

organic light-emitting diode.

uses thin LED layer/film between two grids and does not use backlighting.

44
Q

Describe a touch screen device.

A

an input device that uses monitor/LCD panel as the backdrop for input options.

45
Q

What is a KVM switch and how might one be useful?

A

keyboard, video, mouse.
allows you to use one keyboard, monitor, and mouse for multiple computers.
useful in server room or testing lab.

46
Q

Describe an S-Video port.

A

4-pin or 7-pin round port.
used by some televisions and video equipment.
older video cameras use 6-pin variation.

47
Q

What is a biometric device, and how is it used?

A

an input device that inputs biological data about a person, used to identify them.

48
Q

What is DirectX?

A

a microsoft software development tool that software developers can use to write multimedia applications.
components include directdraw, directmusic, directplay, direct3D

49
Q

How does Light-Emitting Diode (LED) backlighting work, and how do you identify a monitor that uses LED?

A

receives its DC power from motherboard and doesn’t use an inverter.
use less mercury.
advertised as LED, know monitor is an LCD that uses LED backlighting.

50
Q

What is a barcode reader and how are they typically connected to a computer?

A

used to scan barcodes on products.

used at POS or when taking inventory.

A+ Certification (12 decks)

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