Exam 6: Data Communication: Delivering Information Anywhere and Anytime

A ____ network is a network operating on a radio frequency (RF),consisting of radio cells,each served by a fixed transmitter.

The bus topology connects nodes along a network segment with the ends connected in a similar manner to the ring topology.

In the early days of computer technology,____________________ processing system was justified because data-processing personnel were in short supply,hardware and software were expensive,and only large organizations could afford computers.

____________________ is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps,so only a limited amount of information can be transferred in a specific period of time.

List and describe at least three different sender / receiver devices.

Databases and input / output devices can be distributed.

The Transmission Control Protocol (TCP)operates at the OSI model's ____ layer.

List the three main components of a typical data communication system.

Both WirelessLANs and WirelessWANs rely on the ____________________ as the communication medium.

What are some of the drawbacks of decentralized systems?

A wide area network can only use one type of communication media in the network - coaxial cables.

A network ____ represents a network's physical layout.

____ media operate on line-of-sight.

What is a router?

The ring topology needs more cable than a star topology.

Data communication technologies make,Web and video conferencing easier,which can reduce the costs of business travel.

A hierarchical topology is also called a ____ topology.

Traditional mainframe networks use a ____ topology.

A mesh is a hardware and software device that controls the data transfer from a computer to a peripheral device and vice versa.

____ scaling refers to adding more workstations (clients).