Module 4: Build a simple network Flashcards

1
Q

what ae 4 considerations that you might take into account when

selecting a network media

A

some considerations of this are:

  1. What is the maximum distance a signal can be carried on the media
  2. What environment is the media being used in
  3. How much data and at what speed is acceptable
  4. How much does the media cost for installation
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2
Q

this performs the job of protecting the core and cladding

A

describe the

buffer

within fibre optic cabling

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3
Q

this is usually made of plastic and helps to prevent leakage of signals and electrical energy

A

describe the

insulator

witin coaxial cable

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4
Q

describe the

strengthening material

within fibre optic cabling

A

this surrounds the buffer and is used to prevent any stretching of the cable. This layer is often manufactured using the same material found in bulletproof vests

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5
Q

theses include:

RJ-45 - this type of connector is commonly used in connections between hosts and network devices

RJ-11 - this type of connector is typically used on hardware such as analogue phones and fax machines

A

what are the two

common types of connectors used to terminate twisted pair cabling

and where are they typically used

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6
Q

some points on this are:

  1. most commonly used cable type on a Local Area Network (LAN)
  2. readily available and cheap
  3. only one layer of defence against Electromagnetic Interference (EMI) being the twisting of pairs of wires
A

give 3 points about

Unshielded twisted pair (UTP) cabling

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7
Q

which wiring scheme is shown in the image

A

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the

T568A wiring scheme

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8
Q

where will you typically find fibre optic cable installed

A

you will find this installed in places that require high speeds such as:

  1. the backbone of the internet / connections between Internet Service Providers (ISPs)
  2. large data centres
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9
Q

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the

T568B wiring scheme

A

which wiring scheme is shown in the image

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10
Q

what is

crosstalk

A

this is where the electrical impulses from one cable cross over to another cable and causes interference

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11
Q

what are

unlike devices

A

these are devices that use different pins to transmit and receive data

example

connecting a pc to a switch

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12
Q

give 3 points about

Unshielded twisted pair (UTP) cabling

A

some points on this are:

  1. most commonly used cable type on a Local Area Network (LAN)
  2. readily available and cheap
  3. only one layer of defence against Electromagnetic Interference (EMI) being the twisting of pairs of wires
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13
Q

this is constucted using:

  1. core
  2. cladding
  3. buffer
  4. strengthening material
  5. jacket
A

from the inside to the outside what are the 5 components that are used to construct a

fibre optic cable

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14
Q

you will find this installed in places that require high speeds such as:

  1. the backbone of the internet / connections between Internet Service Providers (ISPs)
  2. large data centres
A

where will you typically find fibre optic cable installed

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15
Q

how do you create a

crossover cable

A

A crossover cable is achieved by terminating the wiring scheme T568A on one of the RJ-45 connectors and then on the other end of the cable terminating it with the T568B wiring scheme

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16
Q

what are the two

twisted pair wiring scheme standards provided by the TIA/EIA

known as

A

these are known as:

  1. T568A
  2. T568B
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17
Q

Tracert *ip address*

A

what is the syntax for traceroute

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18
Q

straight through cabling

is used to connect these type of devices

A

what type of cabling is used to connect

unlike devices

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19
Q

what type of cable is used to connect

like devices

A

crossover cable

is used to connect these type of devices

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20
Q

the preferred wiring scheme is

T568A

it is also important that once you have chosen a scheme it is used consistently across your network

A

of the two twisted pair wiring schemes which is preferred and what is an important note when selecting a scheme

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21
Q

describe the

insulator

witin coaxial cable

A

this is usually made of plastic and helps to prevent leakage of signals and electrical energy

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22
Q

typically made from PVC and is their to help protect the layers inside from abrasion, moisture, and other contaminants

A

describe the

jacket

within fibre optic cabling

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23
Q

how does

traceroute

work and when might you need to use it

A

this works by receiving a message from each router (hop) that the packet travels through. This can be a handy tool to use if you cant get connectivity to a host and you want to find out where the cause of the problem is

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24
Q

what is

twisted pair cabling

A

this is cabling tyically used by the ethernet standard and is commonly comprised of 4 pairs of wires with each pair being twisted together

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25
Q

what are the theoretical speeds acheivable from twisted pair cabling categories

  1. cat 3
  2. cat 5
  3. cat 5e
A

these can acheive speeds of

  1. 10 Mbps
  2. 100 Mbps
  3. 1000 Mbps / 1 Gbps
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26
Q

of the two twisted pair wiring schemes which is preferred and what is an important note when selecting a scheme

A

the preferred wiring scheme is

T568A

it is also important that once you have chosen a scheme it is used consistently across your network

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27
Q

from the inside to the outside what are the 5 components that are used to construct a

fibre optic cable

A

this is constucted using:

  1. core
  2. cladding
  3. buffer
  4. strengthening material
  5. jacket
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28
Q

this may be terminated with either:

  1. Bayonet Neill–Concelman / British Naval Connector (BNC)
  2. f series / f-type
A

which two connector types might you find

coaxial cable

terminated with

29
Q

from the inside to the outside what 4 components is

coaxial cable

constructed from

A

this is constructed using:

  1. conducting core
  2. insulator
  3. copper mesh / braid
  4. outside insulator
30
Q

which two connector types might you find

coaxial cable

terminated with

A

this may be terminated with either:

  1. Bayonet Neill–Concelman / British Naval Connector (BNC)
  2. f series / f-type
31
Q

this surrounds the buffer and is used to prevent any stretching of the cable. This layer is often manufactured using the same material found in bulletproof vests

A

describe the

strengthening material

within fibre optic cabling

32
Q

this is to protect the components inside from wear, damage, moisture

A

describe the

outside insulator

witin coaxial cable

33
Q

what type of cabling is used to connect

unlike devices

A

straight through cabling

is used to connect these type of devices

34
Q

what are

like devices

A

these are devices that use the same pins for transmit and receive

exampe

connecting a pc to a pc

35
Q

describe the

copper mesh / braid

witin coaxial cable

A

this is used to help protect against Electro Magnetic Interference (EMI)

36
Q

some points on this are:

  1. has additional protection against Electromagnetic Interference (EMI) in the form of a foil shielding that surrounds the twisted pair cables
  2. is more expensive relative to Unshielded twisted pair (UTP)
  3. because of the additional protection against EMI. it is ideal for environments that are polluted with EMI such as factories
A

give 3 points on

shielded twisted pair (STP) cabling

37
Q

what is the syntax for traceroute

A

Tracert *ip address*

38
Q

these are devices that use the same pins for transmit and receive

exampe

connecting a pc to a pc

A

what are

like devices

39
Q

this is used to help protect against Electro Magnetic Interference (EMI)

A

describe the

copper mesh / braid

witin coaxial cable

40
Q

describe the

conducting core

witin coaxial cable

A

usually made from copper this is the media upon with electrical impulses travel through

41
Q

this is made from either glass or plastic and is the medium upon which the light travels through

A

describe the

core

within fibre optic cabling

42
Q

name 4 parameters that may influence you into choosing

fibre optic cable

as the network media for your installation

A

some parameters that may influence you into using this are:

  1. You want high speeds
  2. You want to cover great distances
  3. The environment is heavily polluted with Electromagnetic Interference (EMI) or radio frequency interference (RFI)
  4. You are installing in an outdoor environment
43
Q

some considerations of this are:

  1. What is the maximum distance a signal can be carried on the media
  2. What environment is the media being used in
  3. How much data and at what speed is acceptable
  4. How much does the media cost for installation
A

what ae 4 considerations that you might take into account when

selecting a network media

44
Q

describe the

outside insulator

witin coaxial cable

A

this is to protect the components inside from wear, damage, moisture

45
Q

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the

T568A wiring scheme

A

which wiring scheme is shown in the image

46
Q

this is cabling tyically used by the ethernet standard and is commonly comprised of 4 pairs of wires with each pair being twisted together

A

what is

twisted pair cabling

47
Q

these are known as:

  1. T568A
  2. T568B
A

what are the two

twisted pair wiring scheme standards provided by the TIA/EIA

known as

48
Q

describe the

buffer

within fibre optic cabling

A

this performs the job of protecting the core and cladding

49
Q

these are devices that use different pins to transmit and receive data

example

connecting a pc to a switch

A

what are

unlike devices

50
Q

crossover cable

is used to connect these type of devices

A

what type of cable is used to connect

like devices

51
Q

describe the

jacket

within fibre optic cabling

A

typically made from PVC and is their to help protect the layers inside from abrasion, moisture, and other contaminants

52
Q

this is constructed using:

  1. conducting core
  2. insulator
  3. copper mesh / braid
  4. outside insulator
A

from the inside to the outside what 4 components is

coaxial cable

constructed from

53
Q

describe the

core

within fibre optic cabling

A

this is made from either glass or plastic and is the medium upon which the light travels through

54
Q

this can typically reach speeds of 100Gbps and can travel for miles or kilometres befor the signal must be regenerated

A

what speeds can

fibre optic cable

typically reach and at what distance

55
Q

some parameters that may influence you into using this are:

  1. You want high speeds
  2. You want to cover great distances
  3. The environment is heavily polluted with Electromagnetic Interference (EMI) or radio frequency interference (RFI)
  4. You are installing in an outdoor environment
A

name 4 parameters that may influence you into choosing

fibre optic cable

as the network media for your installation

56
Q

usually made from copper this is the media upon with electrical impulses travel through

A

describe the

conducting core

witin coaxial cable

57
Q

what speeds can

fibre optic cable

typically reach and at what distance

A

this can typically reach speeds of 100Gbps and can travel for miles or kilometres befor the signal must be regenerated

58
Q

what is

coaxial cable

typically used for and what does it typically carry

A

this is typically used for cable tv installations and will most likely carry high frequency broadband signals

59
Q

this is where the electrical impulses from one cable cross over to another cable and causes interference

A

what is

crosstalk

60
Q

what are the two

common types of connectors used to terminate twisted pair cabling

and where are they typically used

A

theses include:

RJ-45 - this type of connector is commonly used in connections between hosts and network devices

RJ-11 - this type of connector is typically used on hardware such as analogue phones and fax machines

61
Q

this is typically used for cable tv installations and will most likely carry high frequency broadband signals

A

what is

coaxial cable

typically used for and what does it typically carry

62
Q

this works by receiving a message from each router (hop) that the packet travels through. This can be a handy tool to use if you cant get connectivity to a host and you want to find out where the cause of the problem is

A

how does

traceroute

work and when might you need to use it

63
Q

describe the

cladding

within fibre optic cabling

A

made from a slightly different material than the core. Its purpose is to act as a mirror for the light so that it stays within the core

64
Q

these can acheive speeds of

  1. 10 Mbps
  2. 100 Mbps
  3. 1000 Mbps / 1 Gbps
A

what are the theoretical speeds acheivable from twisted pair cabling categories

  1. cat 3
  2. cat 5
  3. cat 5e
65
Q

A crossover cable is achieved by terminating the wiring scheme T568A on one of the RJ-45 connectors and then on the other end of the cable terminating it with the T568B wiring scheme

A

how do you create a

crossover cable

66
Q

which wiring scheme is shown in the image

A

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the

T568B wiring scheme

67
Q

give 3 points on

shielded twisted pair (STP) cabling

A

some points on this are:

  1. has additional protection against Electromagnetic Interference (EMI) in the form of a foil shielding that surrounds the twisted pair cables
  2. is more expensive relative to Unshielded twisted pair (UTP)
  3. because of the additional protection against EMI. it is ideal for environments that are polluted with EMI such as factories
68
Q

made from a slightly different material than the core. Its purpose is to act as a mirror for the light so that it stays within the core

A

describe the

cladding

within fibre optic cabling