Task 1
List the classification of network in detail according to the area covered. Also explain each classification of network in detail with its application.
LAN – (Local Area Network)
A LAN is a network that covers a relatively small area. It is a network that mostly links computers within a single building. Schools, colleges and office buildings would all use a LAN to interconnect their computer systems. They typically range from 1 – 10km. They are able to transmit data much faster than what can be transmitted over a phone line usually around 100kbps – 100mbps, they are cheap to set up compared to the other networks needing a switch and a hub.
MAN – (Metropolitan Area Network)
A MAN is similar to a LAN but able to cover an entire city. …show more content…
Their range would be well beyond 100km. Devices connected to a WAN are normally connected through the telephone system. They can be connected via satellite or leased lines as well. The equipment needed for these networks range from microwave to infrared laser this makes WANs very expensive.
Task 2
Describe in detail the OSI model and its each layers responsibility in detail for networking.
Application – The application layer is used to enable the user to access the network. This is the only layer in the OSI model that directly interacts with the end user. This layer enables the user to surf the web or transfer files. It also has responsibilities such as data flow, error handling and recovery.
Presentation – The presentation layer is used to present the data to the application layer, it also is used for data encryption, translation and data compressing. Provides syntax (frame and format) and semantics (protocols) for communication between layers.
Session – This layer is able to establish and terminate sessions between computers, it also is used to synchronize data between different sources. This layer supports half and full duplex operations and creates procedure for restart and …show more content…
OSI provides layer functioning and defines the functions of each layer whereas TCP/IP is based on protocols and these protocols are not flexible with other layers. The transportation layer within OSI guarantees the delivery of its packets however TCP/IP does not. The network layer of the OSI provides both connection orientated and a connectionless functionality, TCP/IP can only provide connectionless. Protocols are hidden within OSI and this makes them easily replaceable as new technology comes about in TCP/IP replacing the protocols is not easy causing a lot of trouble when the technology
List the classification of network in detail according to the area covered. Also explain each classification of network in detail with its application.
LAN – (Local Area Network)
A LAN is a network that covers a relatively small area. It is a network that mostly links computers within a single building. Schools, colleges and office buildings would all use a LAN to interconnect their computer systems. They typically range from 1 – 10km. They are able to transmit data much faster than what can be transmitted over a phone line usually around 100kbps – 100mbps, they are cheap to set up compared to the other networks needing a switch and a hub.
MAN – (Metropolitan Area Network)
A MAN is similar to a LAN but able to cover an entire city. …show more content…
Their range would be well beyond 100km. Devices connected to a WAN are normally connected through the telephone system. They can be connected via satellite or leased lines as well. The equipment needed for these networks range from microwave to infrared laser this makes WANs very expensive.
Task 2
Describe in detail the OSI model and its each layers responsibility in detail for networking.
Application – The application layer is used to enable the user to access the network. This is the only layer in the OSI model that directly interacts with the end user. This layer enables the user to surf the web or transfer files. It also has responsibilities such as data flow, error handling and recovery.
Presentation – The presentation layer is used to present the data to the application layer, it also is used for data encryption, translation and data compressing. Provides syntax (frame and format) and semantics (protocols) for communication between layers.
Session – This layer is able to establish and terminate sessions between computers, it also is used to synchronize data between different sources. This layer supports half and full duplex operations and creates procedure for restart and …show more content…
OSI provides layer functioning and defines the functions of each layer whereas TCP/IP is based on protocols and these protocols are not flexible with other layers. The transportation layer within OSI guarantees the delivery of its packets however TCP/IP does not. The network layer of the OSI provides both connection orientated and a connectionless functionality, TCP/IP can only provide connectionless. Protocols are hidden within OSI and this makes them easily replaceable as new technology comes about in TCP/IP replacing the protocols is not easy causing a lot of trouble when the technology