...After the power cycles on and off, normal communications resume. Often, there aren’t any technically trained personnel at the site who can perform maintenance and resets on equipment. Even if it is a manned station, there is a risk that the wro...

...layers that contain modules for performing defined functions. This translates into a set of rules that defines the way participating network nodes must interact to communicate and exchange information. The OSI Model defines standard relationships be...

...in contrast, are far less restricted in bandwidth, but they must deliver a picture suitable for viewing from very short distances. • We’ll explain many of today’s different video formats that fall into these two categories. • Broadcast/television...

...identity of users and servers should be verified and the firewall should keep a record of message sources and arrival times. • Is the equipment compatible? • Each company’s network is unique. Yours may include various pieces of hardware and softwa...

...data files, particularly over long distances. A common application for fibre optic cable is as a network backbone, where huge amounts of data are transmitted. To help you decide if fibre is right for your new network or if you want ...