Module 4: Build a simple network

Question 1

what ae 4 considerations that you might take into account when

selecting a network media

Answer 1

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

Question 2

this performs the job of protecting the core and cladding

Answer 2

describe the

buffer

within fibre optic cabling

Question 3

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

Answer 3

describe the

insulator

witin coaxial cable

Question 4

describe the

strengthening material

within fibre optic cabling

Answer 4

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

Question 5

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

Answer 5

what are the two

common types of connectors used to terminate twisted pair cabling

and where are they typically used

Question 6

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

Answer 6

give 3 points about

Unshielded twisted pair (UTP) cabling

Question 7

which wiring scheme is shown in the image

Answer 7

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

T568A wiring scheme

Question 8

where will you typically find fibre optic cable installed

Answer 8

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

Question 9

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

T568B wiring scheme

Answer 9

which wiring scheme is shown in the image

Question 10

what is

crosstalk

Answer 10

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

Question 11

what are

unlike devices

Answer 11

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

example

connecting a pc to a switch

Question 12

give 3 points about

Unshielded twisted pair (UTP) cabling

Answer 12

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

Question 13

this is constucted using:

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

Answer 13

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

fibre optic cable

Question 14

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

Answer 14

where will you typically find fibre optic cable installed

Question 15

how do you create a

crossover cable

Answer 15

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

Question 16

what are the two

twisted pair wiring scheme standards provided by the TIA/EIA

known as

Answer 16

these are known as:

1. T568A
2. T568B

Question 17

Tracert *ip address*

Answer 17

what is the syntax for traceroute

Question 18

straight through cabling

is used to connect these type of devices

Answer 18

what type of cabling is used to connect

unlike devices

Question 19

what type of cable is used to connect

like devices

Answer 19

crossover cable

is used to connect these type of devices

Question 20

the preferred wiring scheme is

T568A

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

Answer 20

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

Question 21

describe the

insulator

witin coaxial cable

Answer 21

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

Question 22

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

Answer 22

describe the

jacket

within fibre optic cabling

Question 23

how does

traceroute

work and when might you need to use it

Answer 23

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

Question 24

what is

twisted pair cabling

Answer 24

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

Question 25

what are the theoretical speeds acheivable from twisted pair cabling categories 1. cat 3 2. cat 5 3. cat 5e

Answer 25

these can acheive speeds of 1. 10 Mbps 2. 100 Mbps 3. 1000 Mbps / 1 Gbps

Question 26

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

Answer 26

the preferred wiring scheme is T568A it is also important that once you have chosen a scheme it is used consistently across your network

Question 27

from the inside to the outside what are the 5 components that are used to construct a ## Footnote **fibre optic cable**

Answer 27

this is constucted using: 1. core 2. cladding 3. buffer 4. strengthening material 5. jacket

Question 28

this may be terminated with either: 1. **Bayonet Neill–Concelman / British Naval Connector (BNC)** 2. **f series / f-type**

Answer 28

which two connector types might you find **coaxial cable** terminated with

Question 29

from the inside to the outside what 4 components is **coaxial cable** constructed from

Answer 29

this is constructed using: 1. conducting core 2. insulator 3. copper mesh / braid 4. outside insulator

Question 30

which two connector types might you find **coaxial cable** terminated with

Answer 30

this may be terminated with either: 1. **Bayonet Neill–Concelman / British Naval Connector (BNC)** 2. **f series / f-type**

Question 31

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

Answer 31

describe the **strengthening material** within fibre optic cabling

Question 32

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

Answer 32

describe the **outside insulator** witin coaxial cable

Question 33

what type of cabling is used to connect ## Footnote **unlike devices**

Answer 33

**straight through cabling** is used to connect these type of devices

Question 34

what are ## Footnote **like devices**

Answer 34

these are devices that use the same pins for transmit and receive _exampe_ connecting a pc to a pc

Question 35

describe the **copper mesh / braid** witin coaxial cable

Answer 35

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

Question 36

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

Answer 36

give 3 points on ## Footnote **shielded twisted pair (STP) cabling**

Question 37

what is the syntax for traceroute

Answer 37

Tracert \*ip address\*

Question 38

these are devices that use the same pins for transmit and receive _exampe_ connecting a pc to a pc

Answer 38

what are ## Footnote **like devices**

Question 39

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

Answer 39

describe the **copper mesh / braid** witin coaxial cable

Question 40

describe the **conducting core** witin coaxial cable

Answer 40

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

Question 41

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

Answer 41

describe the **core** within fibre optic cabling

Question 42

name 4 parameters that may influence you into choosing **fibre optic cable** as the network media for your installation

Answer 42

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

Question 43

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

Answer 43

what ae 4 considerations that you might take into account when ## Footnote **selecting a network media**

Question 44

describe the **outside insulator** witin coaxial cable

Answer 44

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

Question 45

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the ## Footnote **T568A wiring scheme**

Answer 45

which wiring scheme is shown in the image

Question 46

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

Answer 46

what is ## Footnote **twisted pair cabling**

Question 47

these are known as: 1. T568A 2. T568B

Answer 47

what are the two **twisted pair wiring scheme standards provided by the TIA/EIA** known as

Question 48

describe the **buffer** within fibre optic cabling

Answer 48

this performs the job of protecting the core and cladding

Question 49

these are devices that use different pins to transmit and receive data _example_ connecting a pc to a switch

Answer 49

what are **unlike devices**

Question 50

**crossover cable** is used to connect these type of devices

Answer 50

what type of cable is used to connect ## Footnote **like devices**

Question 51

describe the **jacket** within fibre optic cabling

Answer 51

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

Question 52

this is constructed using: 1. conducting core 2. insulator 3. copper mesh / braid 4. outside insulator

Answer 52

from the inside to the outside what 4 components is **coaxial cable** constructed from

Question 53

describe the **core** within fibre optic cabling

Answer 53

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

Question 54

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

Answer 54

what speeds can **fibre optic cable** typically reach and at what distance

Question 55

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

Answer 55

name 4 parameters that may influence you into choosing **fibre optic cable** as the network media for your installation

Question 56

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

Answer 56

describe the **conducting core** witin coaxial cable

Question 57

what speeds can **fibre optic cable** typically reach and at what distance

Answer 57

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

Question 58

what is **coaxial cable** typically used for and what does it typically carry

Answer 58

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

Question 59

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

Answer 59

what is ## Footnote **crosstalk**

Question 60

what are the two **common types of connectors used to terminate twisted pair cabling** and where are they typically used

Answer 60

theses include: ## Footnote **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

Question 61

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

Answer 61

what is **coaxial cable** typically used for and what does it typically carry

Question 62

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

Answer 62

how does **traceroute** work and when might you need to use it

Question 63

describe the **cladding** within fibre optic cabling

Answer 63

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

Question 64

these can acheive speeds of 1. 10 Mbps 2. 100 Mbps 3. 1000 Mbps / 1 Gbps

Answer 64

what are the theoretical speeds acheivable from twisted pair cabling categories 1. cat 3 2. cat 5 3. cat 5e

Question 65

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

Answer 65

how do you create a ## Footnote **crossover cable**

Question 66

which wiring scheme is shown in the image

Answer 66

from pin 1 what are the colour codes for each of the pins of an RJ-45 connector when using the ## Footnote **T568B wiring scheme**

Question 67

give 3 points on ## Footnote **shielded twisted pair (STP) cabling**

Answer 67

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

Question 68

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

Answer 68

describe the **cladding** within fibre optic cabling