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Comptia > A+ 1001: Peripherals > Flashcards

A+ 1001: Peripherals Flashcards

1
Q

Optical media drives

A

CD, DVD, BlueRay

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2
Q

CD

A

CD

  • compact disc
  • Stores files in iso 9660 standard
  • CD-ROM (read only memory)
  • CD-R (writeable CD)
  • CD-RW (rewriteable cds)

Capacity:

  • 650-700 MB
  • 80 min
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3
Q

DVD

A
  • Digital versatile disc
  • DVD-ROM
  • DVD-R
  • DVD-RW
  • (DL) Dual layered format
  • (DS) Dual sided
  • (SS) Single sided
  • (SL) Single layered
    Capacity:
    4.37 GB to 15.9 GB
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4
Q

Blu-ray

A

Blueray

  • Designed for high definition video
  • Capacity:
  • BD-R
  • BD-RE (blu-ray Disc Recordable Erasable)

Capacity
25 GB - 50 GB

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5
Q

USB

A

Universal Serial Bus

Speeds:
USB 1.0 (1.5 MB/s)
USB 1.1 ( 12 MB/s)
USB 2.0 (480 MB/s)
USB 3.0 (5GB/s)
USB 3.1 gen 1 (5 GB/s)
USB 3.1 gen 2 (10 GB/s)

Connectors

  • USB Type-A
  • USB Type-B : Standard
  • USB Type B: Mini
  • USB Type B: Micro
  • USB Type-B: Micro 3.0
  • USB Type-C
Colors:
USB 1.1 ( white)
USB 2.0 (black)
USB 3.0 (blue)
USB 3.1 gen 1 (blue)
USB 3.1 gen 2 (teal)
charging ports (Red, orange, Yellow)
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6
Q

USB Controller

A

Built into the motherboard

the motherboard will have various usb controllers for the different generations of usb, which are then connected to the Root Hub, which in turn exposes the usb ports

The USB controller sends commands downstream to USB device

A connector: downstream connector (plugged into the motherboard)

B connector: Upstream connector (plugged into the device)

B type connectors are designed to be upstream connectors and so will never be plugged into the computer

C type connectors does away with the upstream donwstream distinction

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7
Q

How to extend the amount of usb ports on a system?

A

plug a usb hub into a usb port

on windows go to device manager and open the usb controller

The downside is that Because the USB connector provides power, if you plug in too many devices into the hub, then it may not have enough power for all the devices

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8
Q

in the device manager, if you plug in a device via usb and their is a yellow triangle next to the device, what does that mean?

A

No device driver, need to manually install one

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9
Q

HID

A

Human interface device

HID drives Keyboards, Mice.

Drive core functionality. If the mouse or keyboard has extra features that are beyond the core functions, then you would have to install additional device drivers to get it to work as intended.

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10
Q

Security Issues with USB

A

Easy to use a USB to upload Malware or spyware on pc.

To prevent this:

  • disable USB ports
  • USB lock
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11
Q

Thunderbolt

A

Special high performance connector type

thunderbolt 1: 10GB/s x 2 channels (20GB/s total)

Thunderbolt 2: 20GB/s

Thunderbolt 3: 40 GB/s

Connector type:

  • mini display port conncetor
  • usb c
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12
Q

Lightning

A

High performance connector exclusive to apple devices

uses proprietary lightning connector

Usually used for speed charging

5GB/s

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13
Q

Keyboard

A

Runs at usb 1.1 speed

conncectors:

  • wireless dongle
  • usb
  • ps/2 (purple keyboard/ green mouse)
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14
Q

Where can we go on windows to make changes to or manage peripheral devices?

A

Control Panel
Device manager
Windows Settings/ devices

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15
Q

KVM switch

A

Switch that allows sharing of input devices amongst multiple computers

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16
Q

Speaker Systems

A

x. 1: x regular speakers and one subwoofer
2. 1/5.1/7.1

connector types:
3.5 audio jacks

audio jack colors:
pink - microphone
green - front speakers
silver/grey - side speakers
black: rear speakers
orange: subwoofer and central channel
blue: auxillary
17
Q

S/PDIF

A

Sony/Philips Digital Interface

Optical connector type that is used exclusively for sound connections

mainly used for attaching a receiver system to pc

18
Q

Where to configure Sound Settings

A

Windows Settings / Sound

or simply right click the speaker icon and click on sound settings

19
Q

Trouble shooting Sound

A

1 Check Power and Volume on a physical device

  1. Check the device and application volume settings on the system
20
Q

Readers

A
  1. Smart Card Readers / Magnetic Card Readers

Used for authentication / login

Smart cards contains a smart chip

Magnetic Cards contain Magnetic Strip

  1. Flash Memory Reader
    - SD Cards
    - Mini SD
    - Micro SD
    - Olympus XD
21
Q

Scanners

A

Flatbed Scanner: Scans paper documents. The downside is that you can only feed one page at a time

ADF (Automatic Document Feed) allows scanners to scan multiple pages

22
Q

Barcode /QR code scanners

A

Reads Squares that store alpha/numeric information

23
Q

expansion slots

A

PCIe type slots

Can place a single lane in a 16 lane and it will still work

When choosing a slot, consider airflow and the cards required connections

24
Q

Windows BSOD

A

windows blue screen of death is very common after new device installation.

  1. improperly installed peripheral or expansion card
  2. incompatible device
  3. Missing or incompatible drivers
25
Q

Which is a valid capacity for a Compact Disc?

a. ) 74 megabytes
b. ) 74 minutes
c. ) 80 megabytes
d. ) 4.37 gigabytes

A

b.) 74 minutes

74 minutes is a valid CD capacity. The other values are not valid for CDs.

26
Q

Which is NOT a valid USB speed?

a. ) 12 Mbps
b. ) 480 Mbps
c. ) 5 Gbps
d. ) 1.1 Gbps

A

d. ) 1.1 Mbps
1. 1 Gbps is not a valid USB speed. USB 1.1 Full Speed runs at 12 Mbps. USB 2.0 Hi Speed runs at 480 Mbps. USB 3 and 3.1 Gen 1 run at 5 Gbps (SuperSpeed).

27
Q

Each version of USB in a computer has its own what?

A

USB controller

28
Q

Most USB peripherals already have a what?

A

Windows driver

29
Q

Which is NOT a valid thunderbolt speed?

a. ) 10Gbps
b. ) 20 Gbps
c. ) 30 Gbps
d. ) 40 Gbps

A

30 Gbps

30 Gbps is not a valid Thunderbolt speed. Thunderbolt 1 runs at 10 Gbps, Thunderbolt 2 runs at 20 Gbps, and Thunderbolt 3 runs at 40 Gbps.

30
Q

What color is a PS/2 mouse port?

A

PS/2 mouse ports are green. PS/2 keyboard ports are purple. Red and blue PS/2 ports are not a standard and are seldom, if ever, seen.

31
Q

Which utility would a technician use to configure mouse settings?

A

Control Panel

32
Q

What kind of audio connector provides digital audio output?

A

S/PDIF is the Sony/Phillips Digital Interface. The other connector choices are all analog, not digital.

33
Q

Which is not a consideration when selecting a slot in which to install an expansion card?

a. ) Air flow
b. ) slot type
c. ) Type of operating System
d. ) Space for connectors

A

c.) Type of operating System

The operating system has no bearing on which slot an expansion card is installed into. Air flow, type of slot, and room for rear connectors are all important considerations when selecting an expansion card slot

34
Q

Which is not a step in installing a new expansion card?

a. ) Turn on the computer
b. ) Select a connector and slot
c. ) Secure the card in its slot with a slot-cover screw
d. ) Connect any power or data cables to the card

A

The computer should be turned off before installing a new expansion card (and not be turned on until the installation is complete). All of the other choices are normal steps when installing a new expansion card.

Comptia (24 decks)

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