Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CompTIA A+ 1101 (Core 1) > 3.1 Explain basic cable types & their connectors, features, & purposes > Flashcards

3.1 Explain basic cable types & their connectors, features, & purposes Flashcards

1
Q

2 types of copper cabling?

A
  • Coaxial
  • Twisted pair
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

2 types of twisted pair copper cabling?

A
  • STP
  • UTP
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Meaning of STP?

A

Shielded Twisted Pair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Meaning of UTP?

A

Unshielded Twisted Pair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is Twisted Pair copper cabling made up of?

A

4 copper conductor wire pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why are pairs of conductors twisted at different rates in Twisted pair copper cabling?

A

To reduce interference

The balanced electrical signals on each pair help identify the signal against interference, but the method has limited range

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does attenuation mean?

A

Loss of signal strenght over a medium

Medium like a cable or through the air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Downside to Twisted Pair copper cabling?

A

Signals suffer from attenuation over long ranges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the max recommended distance for most UTP cables?

A

328 feet (100m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How does STP differ from UTP copper cabling?

A

Providing extra protection against interference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When is STP used over UTP copper cabling?

A

Using 10G Ethernet or higher & in environments with high interference

STP is more reliable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

2 types of STP copper cabling?

A
  • Screened cable
  • Fully shielded cable
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How does STP screened cable work?

A

Has 1 thin outer foil shield around all pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is screened cable TP copper cabling also referred to as?

A
  • Screened Twisted Pair (ScTP)
  • Foiled/Unshielded twisted pair (F/UTP)
  • Foiled Twisted Pair (FTP)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How does Fully shielded STP cable work?

A

Has braided outer screen & foil-shielded pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is Fully shielded STP aka?

A

Shielded/Foiled Twisted Pair (S/FTP)

There are also variants with a foil outer shield (F/FTP)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Why is the shielded elements of shielded cable bonded to the connector?

A

Prevent metal from acting as an antenna

Which can generate interference

Modern F/UTP & S/FTP solutions facilitate this by incorporating bonding within the design of each element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a Cat specification?

A

TP cable construction method rated for specific Ethernet standards

Higher Cat specification is capable of higher data rates. Cat specifications are defined in the TIA/EIA-568-C Commercial Building Telecommunications Cabling Standards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Cat specification = TP copper cable construction method

What Ethernet standard does Cat 5 support?

A

100BASE-TX (Fast Ethernet)

This means the max transfer rate is 100Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Cat specification = TP copper cable construction method

Max distance of Cat 5?

A

328 ft (100m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Cat specification = TP copper cable construction method

What Ethernet standard does Cat 5e support?

A

1000BASE-T (GB Ethernet)

This means the max transfer rate is 1000Mbps (1Gbps)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Cat specification = TP copper cable construction method

Max distance of Cat 5e?

A

328 ft (100m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Cat specification = TP copper cable construction method

What Ethernet standards does Cat 6 support?

A
  • 1000BASE-T (GB Ethernet)
  • 10GBASE-T (10 GB Ethernet)

This means the max transfer rate is 1000Mbps (1Gbps) or 10 Gbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Cat specification = TP copper cable construction method

Max distance of Cat 6 (1000BASE-T)?

A

328 ft (100m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Cat specification = TP copper cable construction method

Max distance of Cat 6 (10GBASE-T)?

A

180 ft (55m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Cat specification = TP copper cable construction method

What Ethernet standard does Cat 6A support?

A

10GBASE-T (10GB Ethernet)

This means the max transfer rate is 10 Gbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Cat specification = TP copper cable construction method

What is the max distance of Cat 6A?

A

328 ft (100m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is printed on a Twisted pair cable’s plastic jacket?

A

Cat specification & cable type

Cable type like UTP or F/UTP, for instance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Cat specification = TP copper cable construction method

Which Cat specification is no longer comercially available?

A

Cat 5

A network cabled with Cat 5 will probably need to be rewired to support Gigabit Ethernet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Cat specification = TP copper cable construction method

Why is Cat 6 better than Cat 5?

A

More reliable & can support 10Gbps

Although Cat 6 has reduced range when using 10Gbps (10GBASE-T)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Cat specification = TP copper cable construction method

Downside to Cat 6A TP cables?

A

Bulkier & heavier than Cat 5e & 6

& the installation requirements are more stringent, so fitting it within pathways designed for older cables can be problematic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What connector are TP cables for Ethernet terminated with?

A

RJ45 connectos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What are RJ45 connectors referred to as?

A

8P8C (8-Position/8-Contact)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

2 methods for terminating TP cables?

This is defined by the TIA/EIA-568 standard

A
  • T568A
  • T568B
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

T568A wire order?

T568A is a method for terminating TP cables

A
  1. Green/white
  2. Green
  3. Orange/white
  4. Blue
  5. Blue/white
  6. Orange
  7. Brown/white
  8. Brown
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

T568B wire order?

T568B is a method for terminating TP cables

A
  1. Orange/white
  2. Orange
  3. Green/white
  4. Blue
  5. Blue/white
  6. Green
  7. Brown/white
  8. Brown
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What is a TP crossover cable?

A

When T568A is used on one end & T568B is used on the other

Crossover cables used to be necessary for direct computer connections, but Gigabit Ethernet interfaces can now perform the crossover automatically, even with standard cables.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What connector can TP cables be used with besides RJ45?

A

RJ11

Unlike the 4-pair cable used with Ethernet, RJ11 is typically used to terminate 2-pair cable, which is widely used in telephone systems & with broadband DSL modems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

What is a plenum?

A

Void in a building designed to carry HVAC systems

HVAC = Heating, Ventilation, & Air Conditioning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

What cables can be installed in a plenum space?

A

Fire-proof plenum cables

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

2 features of plenum cables?

A
  • Low smoke emissions
  • Self-extinguishing

They also meet other strict fire safety standards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

What cable jacket & insulation is used for non-plenum cables?

(General purpose cables)

A

PVC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

What cable jacket & insulation is used for plenum cables?

A

Treated PVC or FEP

FEP = Flourinated Ethylene Polymer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Downside to plenum-rated cables?

A

Less flexible

Due to the material used for the plastic jacket (Treadted PVC or FEP). However this material has no effect on bandwidth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

What is marked on plenum-rated cables’ jacket in the U.S.?

A

CMP/MMP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

What is marked on non-plenum-rated cables’ jacket in the U.S.?

(General cables)

A

CMG/MMG or CM/MP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

What do Outside Plant (OSP) cables refer to?

A

Cables that run on external walls or between 2 buildings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Why do OSP cables use special coatings?

A

To protect against UV & abrasion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Why may OSP cables be filled with gel?

A

To protect against temperature extremes & damp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

3 types of Outside Plant (OSP) cables?

A
  • Aerial
  • Conduit
  • Direct burial
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

What are aerial cables designed for?

A

Installation above ground

Typically strung between 2 poles or anchors

They can withstand exposure to UV sunlight, extreme temperatures, and moisture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

What are conduit cables designed for?

A

Installation in underground conduits

Conduits are protective tubes or channels used to encase and protect cables, wires, or electrical conductors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

What are direct burial cables designed for?

A

Installation directly underground

Without the need for conduits

Direct cables may be armored to protect against chewing by rodents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Why does optical cabling have higher bandwidth & cable runs than copper wire?

A

Light pulses are immune to interference & suffer less from attenuation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

What does an optical fiber consist of? (5)

A
  • Jacket
  • Core
  • Cladding
  • Buffer
  • Plastic Jacket
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

What does the optical fiber’s core do?

A

Carries light pulses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

What does the optical fiber’s cladding do?

A

Guides the light pulses along the core

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

What does the optical fiber’s buffer do?

A

Protects the caddling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

2 types of fiber optic cables?

A
  • Single-Mode Fiber (SMF)
  • Multi-Mode Fiber (MMF)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

Which type of fiber optic cable has a smaller core?

(8-10 microns)

A

Single-Mode Fiber (SMF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

Which type of fiber optic cable has a larger core?

(62.5 or 50 microns)

A

Multi-Mode Fiber (MMF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

What type of fiber optic cable is designed to carry long wavelength infrared signals?

(1,310 nm or 1,550 nm)

A

Single-Mode Fiber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

What type of fiber optic cable is designed to carry short wavelength infrared signals?

(850 nm or 1,300 nm)

A

Multi-Mode Fiber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

Data rate of Single-Mode Fiber (SMF) cables?

A

Up to 10Gbps or better

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

Which type of fiber optic cable has longer range?

A

Single-Mode Fiber (SMF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

Which type of fiber optic cable is more suitable for LANs than WANs?

A

Multi-Mode Fiber (MMF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Which type of fiber optic cabling is cheaper to deploy?

A

Multi-Mode Fiber (MMF)

This is because MMF uses cheaper & less coherent LED’s or Vertical Cavity Surface Emitting Lasers (VCELs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

3 types of connectors used for fiber optic cables?

A
  • ST
  • SC
  • LC
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

Meaning of ST?

A

Straight Tip

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

Meaning of SC?

A

Subscriber Connector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

Meaning of LC?

A

Lucent Connector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

Identify fiber optic connector

A

ST

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

Identify fiber optic connector

A

SC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

Identify fiber optic connector

A

LC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

What locking mechanism do fiber ST connectors use?

A

Push-and-twist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

What networks is the fiber ST connector mostly used for?

A

Multi-mode networks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

What locking mechanism do fiber SC connectors use?

A

Push/pull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

2 versions of fiber SC connectors?

A
  • Simplex
  • Duplex

The duplex versin is just 2 connectors clipped together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

What networks can the fiber SC connector be used for?

A

Single- or multi-mode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

What locking mechanism do fiber LC connectors use?

A

Tabbed push/pull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

How do fiber LC connectors differ from SC connectors?

A

Smaller size

This allows for highe port density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

How are patch cords for fiber optic cables typically configured?

A

Same connector on each end or a mix of connectors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q

Why avoid frequently plugging & unplugging fiber optic connectors?

A

Connectors are easy to damage

Unused ports & connectors should be covered by a dust cap to minimize the risk of contamination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q

What does a coax cable consist of? (4)

A
  • Copper wire
  • Insulation
  • Copper mesh
  • Outer insulation

`

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
85
Q

What is coax now mainly used for?

A
  • CCTV installations
  • As a patch cable for CATV & cable modems

CATV = Cable Access TV

86
Q

What connector is used to terminate Coax for CATV installations?

CATV = Cable Access TV

A

F-type connector

87
Q

Meaning of DVI?

A

Digital Visual Interface

88
Q

5 types of DVI?

A
  • DVI-A
  • DVI-D (single link)
  • DVI-D (dual link)
  • DVI-I (single link)
  • DVI-I (dual link)
89
Q

How does each type of DVI differ from each other?

A

Different support for single & dual link & analog/digital output signaling

90
Q

Identify DVI type

A

DVI-A

91
Q

Identify DVI type

A

DVI-D (single link)

92
Q

Identify DVI type

A

DVI-I (single link)

93
Q

Identify DVI type

A

DVI-D (dual link)

94
Q

Identify DVI type

A

DVI-I (dual link)

95
Q

What signals does DVI-I support?

A

Digital & analog signals

96
Q

What signals does DVI-A support?

A

Analog signals

97
Q

What signals does DVI-D support?

A

Digital signals

98
Q

Meaning of VGA?

A

Video Graphics Array

99
Q

How many pins does VGA have?

A

15

100
Q

What signals does VGA support?

A

Analog signals

101
Q

Identify connector

A

VGA

102
Q

What resolutions does VGA support?

A

Up to HD (1920x1080)

103
Q

4 types of hard drive cables?

A
  • SATA
  • SCSI
  • eSATA
  • IDE
104
Q

Meaning of SCSI?

A

Small Computer System Interface

105
Q

How many bits are transferred in a serial interface?

i.e. USB & thunderbolt use serial communication

A

1 bit at a time

Serial communications can achieve Mbps & Gbps speeds through the use of improved signaling & encoding methods. Back when serial interfaces were much slower, PC vendors used parallel data transmission to support better transfer rates

106
Q

How many bits are transferred in a parallel interface?

SCSI
A

1 byte at a time

Serial communications can achieve Mbps & Gbps speeds through the use of improved signaling & encoding methods. Back when serial interfaces were much slower, PC vendors used parallel data transmission to support better transfer rates.

107
Q

What bus communication does SCSI use?

A

Parallel

108
Q

Does SCSI support daisy chaining?

A

Yes

SCSI defines a command language for the host adapter to identify connected devices and their access methods

109
Q

What could SCSI be used for?

A

Internal devices & external peripherals

i.e. scanners & printers

110
Q

What is SCSI now mainly used for?

A

Internal hard drive connections

111
Q

Identify connector

A

SCSI (68-pin

While some SCSI connectors may have 68 pins, others may have different pin counts, such as 50 pins or 80 pins.

112
Q

What data rates does SCSI support?

A

Up to 320 MBps

113
Q

2 common SCSI connectors?

A
  • HD 68-pin
  • SCA 80-pin

SCA = Single Connector Attachment

114
Q

Which SCSI connector incorporates a power connector?

A

SCA 80-pin

115
Q

What power connector is used with SCSI HD-68 pin?

A

Molex

116
Q

What must each device in a wide SCSI bus be configured with?

A

Unique ID

117
Q

What is SCSI’s ID range?

A

0-15

Each device on a wide SCSI bus must be configured with a unique ID

118
Q

What SCSI ID is allocated to the host adapter?

This is the host adapter
A

7 or 15

119
Q

What SCSI ID is allocated to a bootable hard disk?

A

0

120
Q

How is a device on a SCSI bus terminated?

The first & last device must be terminated

A

Terminating device internally or with a terminator pack connected to device or host adapter

SCSI terminator
121
Q

What part of SCSI is still used?

Parallel SCSI as a physical interface has almost completely disappeared

A

The software interface & command set

It is used on other storage technologies, like SAS

122
Q

Meaning of SAS?

A

Serial Attached SCSI

123
Q

What’s the primary interface for high-end storage devices in PCs/servers?

A

SAS

124
Q

Meaning of IDE?

A

Integrated Drive Electronics

125
Q

What is IDE aka?

A

PATA

(Parallel Advanced Technology Attachment)

126
Q

How does the extended IDE (EIDE) transfer data?

EIDE can have different interfaces, including the standard 40-pin interface used for IDE drives and the 80-conductor cable interface for faster data transfer rates.
A

Through 16-bit parallel data transfers

This means that 16 bits are sent simultaneously over the bus

127
Q

How many IDE host adapters may a MOBO have?

MOBO = Motherboard

A

1 or 2, called IDE1 & IDE2 channel

These may also be labelled primary (PRI IDE) & secondary (SEC IDE)

A single IDE channel is now more typical if the MOBO supports SATA. Each IDE channel supports 2 devices, 0 & 1

128
Q

How many connectors does an EIDE cable typically have?

A

3 color-coded connectors

129
Q

What is the EIDE’s blue connector for?

A

Motherboard port

130
Q

What is the EIDE’s black & grey connector for?

A

Device 0 & 1, respectively

131
Q

How is pin 1 identified in a EIDE cable?

A

via red stripe

When inserting a connector, align pin 1 with pin 1 on the port, and the connectors are keyed to prevent incorrect insertion

132
Q

Does RS-232 use serial or parallel communication?

RS = Recommended Standard

A

Serial

133
Q

Identify interface

A

RS-232 (Serial) With DB-9 connector

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

134
Q

What data rates does RS-232 support?

RS-232 (Serial) with DB-9 interface

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

A

Up to 115 Kbps

135
Q

What is a serial port refered to as in Windows?

RS-232 (Serial) with DB-9 interface (it may also have a DB-25 interface)
A

Communications (COM) port

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

136
Q

What are PS/2 serial ports used for?

A

Attaching mice & keyboards

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

137
Q

What is the green PS/2 serial port for?

A

Connecting a mouse

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

138
Q

What is the purple PS/2 serial port for?

A

Connecting a keyboard

Serial ports, once common for dial-up internet connections, are now less prevalent due to USB’s popularity. They are still found on network equipment for device management.

139
Q

What is an adapter cable

A

Cable with a different connector at each end

140
Q

How does an active cable adapter work?

A

Uses circuitry to convert the signal

Passive adapters simply converts between 2 connect form factors

141
Q

What does an all-in-one PC unit mean?

A

Internal components are contained within a case that’s also a monitor

142
Q

How many USB devices does a host controller support?

(in theory)

A

Up to 127 devices

To overcome the limitations of sharing bandwidth, most PC motherboards provision multiple USB controllers, each of which as 3 or 4 ports

143
Q

USB 2.0 data rate?

A

Up to 480 Mbps

144
Q

What is USB 2.0 aka?

A

High-Speed USB

145
Q

Is USB 2.0 half- or full-duplex?

A

Half-duplex

Each device can send or receive, but not simultaneously

146
Q

is USB 3.0 half- or full-duplex?

A

Full-duplex

Each device can send or receive simultaneously

147
Q

Data rate of USB 3.2 Gen 1?

Previously known as USB 3.0 & USB 3.1

A

Up to 5 Gbps

148
Q

What connectors does USB 3.2 Gen 1 support?

Previously known as USB 3.0 & USB 3.1

A
  • USB-A
  • USB-C
  • USB Micro
149
Q

What is the commercial name for USB 3.2 Gen 1?

Previously known as USB 3.0 & USB 3.1

A

SuperSpeed USB

150
Q

Data rate of USB 3.2 Gen 2x1?

Previously known as USB 3.1 Gen 2

A

Up to 10 Gbps

151
Q

What connectors does USB 3.2 Gen 2x1 support?

Previously known as USB 3.1 Gen 2

A
  • USB-A
  • USB-C
  • USB Micro
152
Q

What is the commercial name for USB 3.2 Gen 2x1?

Previously known as USB 3.1 Gen 2

A

SuperSpeed USB 10 Gbps

153
Q

Data rate of USB 3.2 Gen 2x2?

A

2 x 10 Gbps

This means 2 lanes of 10 Gbps each, resulting in a total potential thorughput of 20 Gbps

154
Q

What connectors does USB 3.2 Gen 2x2 support?

A

USB-C

155
Q

What is the commercial name for USB 3.2 Gen 2x2?

A

SuperSpeed USB 20 Gbps

156
Q

Why do USB 3 controllers have 2 components?

A

1 manages USB 3.0-compatible devices & 1 manages USB 1.1/2.0 devices

Because they’re managed separately, older devices won’t slow down the performance of newer, high-speed devices connected to the USB 3 port

157
Q

Identify interface

A

USB-A 2.0

158
Q

Identify interface

A

USB-B 2.0

159
Q

Identify interface

A

USB-B Mini 2.0

160
Q

Identify interface

A

USB-B Micro 2.0

161
Q

Which USB 3.0 interfaces are compatible with USB 1.1 & 2.0 interfaces?

A

USB-A 3.0

Type B/Type B Micro connectors aren’t compatible

i.e. you could plug a USB 2 Type A cable into a USB 3 Type A port, but you can’t plug a USB 3 Type B cable into a USB 2 Type B port

162
Q

Identify interface

A

USB A 3.0/3.1

163
Q

Identify interface

A

USB-B 3.0/3.1

164
Q

Identify interface

A

USB-B Micro 3.0/3.1

165
Q

Identify interface

A

USB-C

USB-C supports various standards, including USB 2.0, 3.0, & 3.2, & other protocols like Thunderbolt

166
Q

How much Watts can a Basic USB port supply?

A

Up to 4.5W

167
Q

How much Watts can a Power Delivery (PD) USB port supply?

(Given suitable connectors & cabling)

A

Up to 100W

168
Q

2 main factors that detminer a video cable’s bandwidth?

A
  • Resolution of the image
  • The speed at which the image is redrawn

i.e. uncompressed HD video at 60fps requires 4.5 Gbps, while 4K at 60fps requires 8.91 Gbps

169
Q

How is the resolution of a image measured?

A

Horizontal pixels by vertical pixels

i.e. 1920x1200 is the typical format of High-Definition (HD) video & 3840x2160 is typical of 4K video

170
Q

What is the speed at which an image is redrawn measured in?

(Refresh rate)

A

Hertz (Hz) or Frames Per Second (FPS)

171
Q

What does framerate in FPS describe?

A

Video source

172
Q

What is Hertz used to describe in video?

A

Refresh rate of display device & video interface

173
Q

How do you avoid display artefacts

i.e. ghosting & tearing

Monitor ghosting
A

Refresh rate should match the frame rate or be evenly divisible by it

i.e. if the framerate is 60 FPS & the refresh rate is 120Hz, the video should play smoothly

174
Q

Meaning of HDMI?

A

High-Definition Multimedia Interface

175
Q

Meaning of HDCP?

A

High-bandwidth Digital Content Protection

176
Q

What signals does HDMI support?

A

Audio & video

It also supports remote control & HDCP

Newer HDMI specifications support high resolutions such as 4K and 8K, along with gaming features like adaptive refresh rates.

177
Q

Identify interface

A

HDMI-A

178
Q

Identify interface

A

HDMI-C (mini)

179
Q

Identify interface

A

HDMI-D (Micro)

180
Q

What are HDMI cables rated as?

A

Standard (Category 1) or High Speed (Category 2)

181
Q

What does HDMI High Speed (Category 2) support?

A

Greater lengths & supports v1.4 features

v1.4 features like 4K & refresh rates over 60Hz

182
Q

What data rates does HDMI 2.0 support?

(Premium High Speed)

A

Up to 18 Gbps

183
Q

What data rates does HDMI 2.1 support?

(Ultra High Speed)

A

Up to 48 Gbps

184
Q

Why was DisplayPort developed?

A

Becuase HDMI requires a royalty to use

DisplayPort, a royalty-free standard by VESA, supports features such as 4K resolution, audio, and content protection, similar to HDMI

185
Q

Identify interface

A

DP++

(DisplayPort)

186
Q

Identify interface

A

MiniDP/mDP

187
Q

How can DisplayPort connections increase bandwidth?

A

By using multiple lanes

(up to 4)

188
Q

What is the bitrate of each lane in DP 1.0/1.1/1.2?

A

2.7 Gbps per lane

With 4 lanes each operating at 2.7 Gbps, the total bandwidth of DP 1.0/1.1/1.2 would be up to 10.8 Gbps

189
Q

What is the bitrate of each lane in DP 2.0?

A

Up to 20 Gbps

With 4 lanes each operating at up to 20 Gbps, the total bandwidth of DP 2.0 would be up to 80 Gbps

190
Q

Main advantage DP has over HDMI?

A

Supports daisy-chaining multiple monitors to the same video source

Using multiple monitors with HDMI requires one video card port for each monitor. Thunderbolt also supports daisy-chaining

191
Q

How can Thunderbolt be used?

A

As a display interface & as a peripheral interface

Display interface like DP/HDMI & as a peripheral interface like USB

192
Q

What interface does Thunderbolt 1 & 2 use?

A

MiniDP/mDP

193
Q

What is Thunderbolt (1, 2, & 3) compatible with?

A

DisplayPort

A monitor with a DP port can be connected to a PC via a thunderbolt port & a suitable adapter cable

194
Q

How are thunderbolt (1 & 2) ports distinguished from MiniDP ports?

A

By a lightning bolt icon

195
Q

Data transfer rate of Thunderbolt 2?

A

Up to 20Gbps

196
Q

What interface does Thunderbolt 3 use?

A

USB-C

Thunderbolt 1 or 2 devices connect to Thunderbolt 3 via converter cables. USB works on Thunderbolt 3, but non-Thunderbolt USB ports won’t support Thunderbolt devices.

197
Q

Data transfer rate of Thunderbolt 3?

A

Up to 40 Gbps over a short cable

(1.6ft (0.5m))

198
Q

Idnetify interface

A

Lightning

199
Q

Meaning of SATA?

A

Serial Advanced Technology Attachment

200
Q

Identify interface

A

SATA Power Cable

201
Q

Identify interface

A

SATA Data Cable

202
Q

How many pins does the SATA power connector have?

A

15 pins

203
Q

How many pins does the SATA data power connector have?

A

7 pins

204
Q

What does the SATA’s power connector connect?

A

The device to the PC’s power supply

205
Q

Data rate of SATA 1?

A

Up to 150 MBps

206
Q

Data rate of SATA 2?

A

300 MBps

207
Q

Data rate of SATA 3?

A

600 MBps

208
Q

Identify interface

A

Molex

New devices typically use the SATA power connector, while older components use the molex connector to link to the PSU. Some devices might have both SATA & molex poer connectors

209
Q

Meaning of eSATA?

A

External SATA

210
Q

Identify interface

A

eSATA

Internal SATA cables can’t be used to connet to an external eSATA port

211
Q

How does the eSATAp interface differ from eSATA?

A

Compatible with USB & SATA (with eSATAp cable)

However, the USB interface dominates the external drive market

CompTIA A+ 1101 (Core 1) (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions