E45

IP is the most used communication ptotocol for sending packets across the internet.

It provides an unique ip address and sending data to it.

A port is a type of software that serves as a communications endpoint and it is used

by the transport protocols of the Internet Protocol Suite

  HTTP is a protocol used to transfer data over the intertet that defines what action will web servers

do upon specific requests

 The World Wide Web are all the resources and users of the internet using http.

HTTPS is the combination of HTTP with SSL/TLS to provide a secure connection

  FTP stand for File Transfer Protocol and is a standar network protocol for exchanging files over the internet.

TCP stand for Transmission Control Protocol and is used by applications that require guaranteed delivery

 

Network types

  "A computer network is a collection of two or more computers linked together for the purposes of sharing information, and resources, among other things." Wikipedia

Now that we already got the network definition it is important for you to know the primary types of networks.

Bus network layout

 Bus topology.

 A bus network is a network topology in wich every single client (device) connected to it share a common cable and information is sent through the cable to every client but only the one who need it will use it.

Advantages:

• Its cost effective because a single cable is used
• It can be very easy an fast to install.

Disadvantages:

•  If there is a problem with the cable the entire network comes down
• It has a slower data transfer rate than other topologies

 

 

Ring network layout

Ring topology

A ring network is a network topology in wich every node is connected with two other nodes. In this topology each client acts as a repeater and information is sent in this way so that the signal arrived its destination strong. 

Advantages:

• Performs better than bus topologyunder heavy network load
• Does not require a special node to manage connectivity between clients

                                                          Disadvantages:

• A malfunctioning workstation can create problem for the entire network.
• Delay is increased when the network gets bigger.

                                                       Star topology

Star network layout

A star network topology is one in wich everybody is connected to a switch,hub or another computer and it manages communication between clients.

Advantages:

• It is very easy to expand this networks.
• Connecting and disconnecting devices does not affect the network.

Disadvantages:

• If the central hub or server fails the whole network will be down.

    Mesh topology 

  

Mesh network layout

A mesh network is one in wich every node transmit and recieves his own data and also

collaborate with other ones to propagate data in the network.

 

Advantages:

• Alternate paths exist if there is a failure.
• no central server or hub is needed.

Disadvantages:

• Complex setup.
• Not cost effective because many cables are used.