The job of a person who has the expertise in the field of network communications is related with the network systems inside a concern or an organization. He is also called as network systems and data communication expert.

The US bureau of labor statistics states that a network communications expert performs research, analysis, tests and evaluation of the network systems like the local area networks (LAN), wide area networks (WAN), Internet systems, intranet systems and several other systems. The data released by the US Bureau of Labor Statistics (BLS) wage and Employment on May 2008 states that a person having expertise in the field of network systems and data communications is able to earn the country’s median salary of about $71,000. The median salary range of the country varies from $41,660 to $110,920. The data released by the BLS May 2008 indicates that the “Computer Systems Design and Related Services" industry recruited a large number of experts in the stream of network systems and data communications. They provided a median salary of about $75,920 to the specialists. The field “Support Activities for Mining” provided the largest salary to the network and communications experts. They provided a median salary of about $97,970.

The network systems and data communications experts always work in a properly maintained and comfortable office environment or in a computer lab or in a separate area. A majority of the experts operate for about forty hours in a single week. A majority of the organizations and the employers require at least a bachelor’s degree to be possessed by the candidate applying for the post of network and data communications expert. One of the examples of a bachelor’s degree program to be appointed as the network communications expert includes the management information systems degree.

The equipment of network communications help the computers, printers, servers and the other related machines to transfer the data from one point to other. They can be utilized for routing data by performing the "as is" what is sent several times or by performing a complex way of equalizing the data and doing error evaluations prior to receiving the data. The communications can take place between computers situated very close to each other or between a computer and a printer or computers between wide area networks. These types of machines make sure that the data sent is properly routed and retrieved by the targeted machine situated in the network. Some of the most important network and communication devices include a hub, switch and a router.