Exam 6: Business Networks and Telecommunications

The bit rates of DSL lines usually have no relation to the distance of the subscriber's computer from the regional central office of the telephone company.

The two major types of ____ are geostationary,also called GEO,and low earth orbit,also called LEO.

____ fulfill organizational needs for reliable data communications while relieving the organization of the burden of providing its own network management and maintenance.

Businesses use ____ to save on travel costs and lodging,car fleets,and the time of highly salaried employees,whether they work in different organizations or at different sites of the same organization.

A(n)____________________ is a wireless network designed for handheld and portable devices such as PDAs,cell phones,and tablet or laptop computers,and is intended for use by only one or two people.

Coaxial cable connects to network devices with RJ-45 plug-in connectors,which resemble the RJ-11 connectors used on telephone wire,but are slightly larger.

A ____ is a group of bits transmitted together.

The number next to a(n)____ service refers to data speed in multiples of 51.84 Mbps,considered the base rate bandwidth.

LAN ____ have become a common device in offices and households.

A direct link to a wireless router or AP creates a hotspot.

A computer network within a building,or a campus of adjacent buildings,is called a(n)____________________,or LAN.

Large ____________________ might have many constituent LANs and MANs on different continents.

Communication on the Internet primarily follows the network protocol,____________________,which is actually a set of related protocols.

A communications ____________________ is the physical means that transports the signal,such as a copper wire telephone line,a television cable,or radio waves.

Once an organization connects its information systems to a public ____________________,security becomes a challenge.

In ____________________,a dedicated channel (a circuit)is established for the duration of the transmission.

DSL Internet links are provided by television cable firms.

You will find a WLAN in almost every warehouse.

Optical fibers can carry signals over relatively shorter distances compared to other media.

____ allows reception at a much faster rate than transmission,that is,it is faster downstream than upstream.