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My A+ part 1 > 3.1 Identify basic cable types > Flashcards

3.1 Identify basic cable types Flashcards

Explain basic cable types, features, and their purposes. Network cables, Video cables, Multipurpose cables, Peripheral cables, Hard drive cables, Adapters

1
Q

Most of our Ethernet networking operates using ___.

A

twisted pair wiring

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2
Q

Twisted pair copper cabling uses something called ___. That means there are two wires that interact with each other. They’re both sending the same information– one is a positive value and one is in negative value.

A

balanced pair operation

Transmit+, Transmit- / Receive+ Receive-

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3
Q

What is the purpose of twisting wires in cables?

A

Because these wires are twisted, there will be a wire always moving away from any potential interference, and when this information gets to the other end of the wire, those opposite signals can be compared to each other to reconstruct anything that may have been corrupted by this interference.

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4
Q

“CAT” denotes what for a twisted pair Ethernet cable?

A

Its category, each of these has a different twist rate, these determine how well traffic is able to get through the network when there’s interference.

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5
Q

What are the three CAT types expected on the exam, and what are their maximum distances?

A

CAT5 : 100 meters - 100BASE TX, 1000BASE-T

CAT5e (enhanced) : 100 meters - 100BASE TX, 1000BASE-T

CAT6 : 37-55 meters - 10GBASE-T

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6
Q

What is plenum?

A

Plenum is a space provided for air circulation for heating and air-conditioning, might also run network cables.

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7
Q

When should you use plenum-rated cables, and what is their disadvantage?

A

You should use it wherever a fire + water hazard is a concern, PVC cable can release toxic fumes when burnt.

Plenum-rated cable may not be as flexible as PVC cable.

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8
Q

If you were to look above the drop ceiling of your office and you saw that there was duct work providing air supply from the HVAC and there was separate duct work providing the air returned to the HVAC, then you would say that there was no ___ in this office configuration.

A

plenum

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9
Q

When should you use shielded twisted pair?

A

Whenever interference is a great concern.

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10
Q

STP requires that the cable be ___.

A

grounded

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11
Q

What do the abbreviations U, S, and F represent on twisted pair cables?

A

U - unshielded
F - foil shielding; foil around the cable
S - braided shielding; foil around entire cable and individual pairs

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12
Q

The Ethernet standard for matching wires with pins is called ___ and ___ termination standards.

A

568A

568B

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13
Q

568A is traditionally used for ___ cabling, although many organizations use 568B.

A

horizontal

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14
Q

Terminating one side of the cable with the 568A pin-out and the other side of the cable with the 568B pin-out will create what problem?

A

you won’t be able to run Ethernet at gigabit speeds

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15
Q

Identify the following connector based on the wire color order

1  | White Green
2 |  Green     
3 | White Orange
4 | Blue
5 | White Blue
6 | Orange 
7 | White Brown
8 | Brown
A

568A

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16
Q

Identify the following connector based on the wire color order

1  |  White Orange
2 |  Orange      
3 | White Green
4 | Blue
5 | White Blue
6 | Green  
7 | White Brown
8 | Brown
A

568B

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17
Q

Another type of cable that you might find for a wide area network cable modem and other uses is a ___.

A

coaxial cable

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18
Q

coaxial means what?

A

Coaxial means there are two or more forms that share a common axis in the cable.

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19
Q

RG-6 is used for?

A

television/digital cable modem connections, high speed internet

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20
Q

RG-59 is used for?

A

Patch cables; connecting electronic or optical devices over very short distances.

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21
Q

568A, 568B, coaxial cable, plenum, CAT5/6 all share what in common?

A

they’re copper cables

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22
Q

This is transmission between these devices using visible light instead of radio frequency signals.

A

optical fiber communication

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23
Q

What is the weakness of fiber optic cable?

A

Difficult to monitor/tap.

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24
Q

When should you use optic cable?

A

Long distance connections, or areas with high radio/electrical interference.

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25
Q

The optic fiber you would put between two devices will either be ___ fiber or ___ fiber.

A

multimode

single-mode

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26
Q

single-mode denotes what?

A

Travels much further than than multimode, uses expensive lasers.

27
Q

multimode denotes what?

A

Light bounces inside the optic cable core at angles, used for shorter distances, uses LED, cheaper than single-mode.

28
Q

Something that’s very standardized onVGA connectors is the color __.

A

blue

15 pins

29
Q

A VGA connection is an ___ connection.

A

analog

30
Q

There’s no ___ option if you’re connecting with a VGA connection.

A

digital

31
Q

___ video connections greatly degrade as distance increases.

A

analog

32
Q

Video and audio can both be sent through this connection, digital only.

A

HDMI / miniHDMI

33
Q

___ is a royalty-free standard, which means manufacturers can add these interfaces to their components and not have to pay any royalties

A

DisplayPort

34
Q

Data is sent over ___ video connections in a packetized form.

A

DisplayPort

35
Q

DVI (digital visual interface) connections can be ___ link or ___ link.

A

single-link

dual-link

36
Q

DisplayPort is compatible with what two connection types via an unpowered adapter?

A

DMI and DVI

37
Q

Single-link DVI supports ___ gigabits of throughput which allows you to have HDTV at ___ frames per second.

A

3.7

60

38
Q

Dual-link DVI which extends this to __ gigabits per second supporting an HDTV connection at __ frames per second, making it ideal for gaming.

A

7.4

85

39
Q

___ can support both analog and digital communication

A

DVI

40
Q

DVI-A supports ___ signals

A

analog (A = analog)

41
Q

DVI-D supports ___ signals

A

digital (D = digital)

42
Q

DVI-I supports ___ signals

A

digital and analog (I = both are integrated)

43
Q

What DVI connectors have only a single dash looking pin on the left with no squares?

A

DVI-D

44
Q

8 pin connectors used exclusively for apple mobile devices

A

lightning

45
Q

What advantage does lightning have over microUSB?

A

can be inserted either way, charges faster, durable.

46
Q

Thunderbolt uses what kind of connector? What are they typically used for?

A

miniDisplayPort for v1 and v2, USB-C for v3. Typically storage device or a video display.

47
Q

___ allows the daisy-chaining of devices from one to the other, and you can daisy-chain up to six different devices using the single connection from your computer. Can be optical or copper.

A

Thunderbolt

48
Q

USB 3 doesn’t specify a max cable length

T or F?

A

True

49
Q

While ___ can replace all other USB connectors, it isn’t necessarily USB 3

A

USB-C

50
Q

Serial cable connectors tend to use ___ connectors, and are commonly used for ___ connections.

A

DE-9

RS-232

51
Q

What are some examples of networking devices that could need a serial connection?

A

Management ports on routers, switches, firewalls, or modems.

52
Q

What are SATA connectors used for?

A

SATA is a very common way to connect our storage devices. (serial attachment)

53
Q

SATA data connectors have __ pins while SATA power connectors have __ pins. The data is smaller in order to save space on the motherboards.

A

7

15

54
Q

The ___ connectors on SATA devices is smaller in order to save space on the motherboards.

A

data

55
Q

IDE, SATA, and SCSI are all commonly used to connect what to motherboards?

A

hard drives

56
Q

IDE cables have a ___-like appearance. They can only support __ drives. They have ___ pins and are used on older systems.

A

ribbon

two

40

57
Q

This standard was designed to connect many different kinds of devices together into the standard format. So you might have hard drives, optical drives, scanners, and other devices all along the same ___ bus. In many versions of the ___ standard, you can support up to 16 devices chained together one after the other.

A

SCSI

58
Q

Because the standard has evolved so much through the years, you’ll find that there are many different ways to communicate over ___ using many different interfaces, and as such there are both parallel and serial versions of ___ available.

A

SCSI

59
Q

___ is one of those old formats that continues to be used in today’s data centers. You’ll certainly find ___ being used in virtual machines and physical drive arrays.

A

SCSI

60
Q

___ SCSI no longer supports daisy chaining but has increased throughput.

A

serial attached

61
Q

Use a ___ to convert between different connectors if they are electrically compatible.

If they are not electrically compatible use a ___ instead.

A

adapter

converter

62
Q

One type of adapter you might use for video is when you need to convert from a digital ___ connection to an ___ connection.

A

DVI

HDMI

63
Q

One type of adapter used for analog video is one that might convert from a ___ connection to a ___ analog connection.

A

VGA

DVI

If using the digital version of DVI a converter is needed.

64
Q

One of the things you may have noticed with newer laptops is they don’t tend to have physical ___ interfaces as part of the laptop. Thus you would need this kind of adapter/converter.

A

Ethernet

EthernetUSB

My A+ part 1 (45 decks)

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