1.Router: 1.It is a machine which aheads datagrams over the networks. 2.This router is present at a node which connects two or more networks. 3.It avails of headers and tables to establish the path. 4.We can filter the data through this router in very small. 5.in order to communicate one another this router uses a protocol. 2.Hubs: 1.a hub is a frequent connection point . 2.It contains no of ports. 3.The data type in hub is frames. 4.hubs are present as an association for the networks. 5.It is some what slow. 6.we can use it as a stand alone device. 3.Servers: 1.A server is a device that manages all the network( printers ,hard disks...) devices. 2.generally this servers sre many types as follows 1.Database server:A system which operate through queries. 2.Print server :A system which directs one or more printer. 3.File server and network server which directs the network traffic. 4.It offers many functionality frequently called \"servers.\" 5.Selecting the computer as \"server class hardware\" leads to more reliable and powerful than a simple computer. 4.Network cabling: 1.It is used to join the one network device to another network device. 2.It the agency to travel from one netork to another network 3.Depending on their sizeand topology the cables are different as folllows. 1 .co-axial cable 2.optical fibre cable 3.twisted pair cacle 4.For acheving the good network we need to know the charecteristics of a cable at first. 5.Sound masking upgrades the isolation. Solution 1.Router: 1.It is a machine which aheads datagrams over the networks. 2.This router is present at a node which connects two or more networks. 3.It avails of headers and tables to establish the path. 4.We can filter the data through this router in very small. 5.in order to communicate one another this router uses a protocol. 2.Hubs: 1.a hub is a frequent connection point . 2.It contains no of ports. 3.The data type in hub is frames. 4.hubs are present as an association for the networks. 5.It is some what slow. 6.we can use it as a stand alone device. 3.Servers: 1.A server is a device that manages all the network( printers ,hard disks...) devices. 2.generally this servers sre many types as follows 1.Database server:A system which operate through queries. 2.Print server :A system which directs one or more printer. 3.File server and network server which directs the network traffic. 4.It offers many functionality frequently called \"servers.\" 5.Selecting the computer as \"server class hardware\" leads to more reliable and powerful than a simple computer. 4.Network cabling: 1.It is used to join the one network device to another network device. 2.It the agency to travel from one netork to another network 3.Depending on their sizeand topology the cables are different as folllows. 1 .co-axial cable 2.optical fibre cable 3.twisted pair cacle 4.For acheving the good network we need to know the charecteristics of a cable at first. 5.Sound masking upgrades the isolation..