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CompTIA A+ (Core 1) > Connectors > Flashcards

Connectors Flashcards

1
Q

For which implementations might you find an RJ-11 connector being used?

A

ADSL Internet service
A phone line
A modem

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2
Q

Which USB connector type is reversible?

A

C

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3
Q

For which type of device would you most likely use an eSATA connector?

A

Data interface for an external hard drive

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4
Q

A BNC connector is most commonly found in use with which type of cable?

A

Coaxial

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5
Q

Which connector is most commonly associated with an RS-232 interface?

A

DB9

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6
Q

Which device would most likely use a DB9 connector?

A

Mouse

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7
Q

In which implementation would you most likely find an RG6 connector?

A

Connected to a digital TV

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8
Q

For which type of device would you most likely use a Molex connector?

A

Power interface for a CD-ROM drive

Power interface for an internal hard drive

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9
Q

Which Apple devices would support a Lightning connector?

A

iPad 4

iPhone 5

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10
Q

SCSI device connectors would more likely be found in use with which type of system?

A

Servers

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11
Q

RJ

A

Registered Jack

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12
Q

Traditional connector for a phone cable

Contains four internal wires in two sets of twisted pairs

A

RJ-11

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13
Q

Traditional connector for an Ethernet cable

Contains eight wires in four sets

A

RJ-45

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14
Q

_ characteristics
o Six position, four connector configuration (it can accommodate six wire. There are six little channels in the physical connector, only four are used for a phone connection) – known as 6P4C configuration.
o Primary used for voice/data applications
 Phones
 Modems
 ADSL lines
o 24 Mbps maximum bandwidth

A

RJ-11

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15
Q 
_ characteristics
o	Eight position, eight connector configuration – known as 8P8C
o	Primarily used for data applications
	Ethernet networks
o	10 Gbps maximum bandwidth
A

RJ-45

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16
Q

RS

A

Recommended Standard

17
Q

o Defines a standard for serial communication or transmission of data one bit at a time
o Most commonly implemented with DB9 (stands for D sub and nine pins in two rows)
o Can be used with other connectors depending on the device, such as printers
o Often referred to as a “com port” (com for communications)

A

RS-232

18
Q 
_ characteristics
o	Used most commonly for devices with simple configuration or minimal data transfer because it was just one bit at a time
	Mouse
	UPS (Uninterruptible Power Supply)
	External modem
	Early PDA (synchronization)
o	Defines the electrical characteristics and timing of signals
o	Superseded by USB
A

RS-232

19
Q

BNC

A

Bayonet Neil-Concelman Connector

20
Q

o Traditionally used with coaxial cable
o Used in early Ethernet networks (was known as 10Base2 – also known as “Thinnet”)
o Twist-lock ends
o Sometimes referred to as a “British Naval Connector”

A

BNC

Bayonet Neil-Concelman Connector

21
Q

_ characteristics
o Dependent on the equipment, but commonly used with Radio Frequency (RF) equipment
 Radio
 Testing or diagnostic equipment
 Any device carrying video signals (eg. Closed circuit tv system)
o Designed to match the resistance or impedance characteristic of the cable being used
 Impedance of 50 or 75 ohms

A

BNC

22
Q

RG

A

Radio Guide

23
Q

 Traditionally used with coaxial cable
 Lighter gauge wire
 Thinner insulation
 Less shielding

A

RG-59

24
Q

 Traditionally used with coaxial cable
 Heavier gauge wire
 Thicker insulation
 More shielding

A

RG-6

25
Q

_ characteristics
 Used most commonly for cable TV in earlier installations or closed-circuit TV
 The smaller conductor could not achieve the same signal quality as RG-6
 Its lesser shielding was adequate for the lower MHz value of analog transmissions, but not for higher GHz levels
 Poor choice for modern digital TV or Internet

A

RG-59

26
Q

_ characteristics
 Used most commonly for more modern (digital) cable TV or internet service (cable modems)
 The larger conductor provides better signal quality
 Improved shielding was adequate for the higher GHz levels of digital signals
 Good choice for modern digital TV or internet

A

RG-6

27
Q

o The most widely used connection for current peripheral devices
o Superseded many different interface connections
 Mouse/keyboard
 Printer/scanner/multi-function
 External storage
 Game controller
 Camera

A

USB

28
Q

_ characteristics
o Designed to carry both data and power over a single connection
o Currently three generations
 1.x
 2.0
 3.x
o Hot-pluggable (you can just plug it in and unplug it anytime without having to shut anything down) any device can use any receptacle that fits, little to no device configuration

A

USB

29
Q

o Most commonly implemented with simple, serial devices
 Mouse
 Early PDAs
o Management interface for com ports (RS-232 devices)
 UPS
 Routers

A

DB-9

30
Q

SCSI

A

Small Computer System Interface

31
Q

o Uses a variety of connectors depending on the device
o Tend to be fairly large
o Connector might be two inches wide
o Tend to have high pin counts (sometimes 50 or 60)
o is bus technology – devices can connect to a central bus and are “daisy chained”
o Controlled by a host controller, typically built into the motherboard or as an expansion card

A

SCSI

32
Q

_ characteristics
o Most commonly used as an interface for hard drives, but supports a wide range of other peripheral devices
o SCSI has undergone a number of revisions to improve its specifications
 Fast, Ultra and Wide – versions 1, 2, and 4
o Able to support up to eight devices (including the host controller) in a daisy-chain in early implementations, 16 in later revisions
o A common interface in server systems that required more drives or peripherals, not as common in client systems

A

SCSI

33
Q

eSata

A

External Serial Advanced Technology Attachment

34
Q

_ characteristics
o An alternative for external drives
 Faster data transfer rates than USB 2 or FireWire
 Requires a separate power connector
o Uses a point to point interface
 Unlike a bus, no daisy chaining of devices
 Multiple connections are typically available, however would likely require an expansion card
o USB 3.0 matches or exceeds the transfer of eSATA

A

eSATA

35
Q 
o	Power connectors for internal PC components
o	Varying connectors dependent on the device
	Hard drives
	Optical drives
	Floppy drives
	Motherboard
	CPU or graphics card
	Fans
A

Molex

36
Q

_ characteristics
o 4-pin connector (single row) most commonly used for hard drives or optical drives
o 4-pin connector (2 rows) most commonly used for CPU or graphics card
o 20-pin connector most commonly used for motherboard
o Only used for power, no data
o Almost always used internally only
o Molex connections are extended directly from the main power supply of the PC

A

Molex

CompTIA A+ (Core 1) (35 decks)

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