Exam 6: Data Communication: Delivering Information Anywhere and Anytime

Describe a mesh topology and its advantages.

_____ cables are glass tubes surrounded by concentric layers of glass,called cladding,to form a light path through wire cables.

Coaxial cables are used mainly for:

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

In _____ routing,one node is in charge of selecting the path for all packets.

Data communication systems are significantly apart from an organization's core functions.

A _____ is a hardware device that allows several nodes to share one communication channel.

Define a wide area network (WAN) and discuss its typical transfer speeds.

The _____ layer of the Open Systems Interconnection (OSI) model serves as the window through which computer programs access network services.

The _____ model is a seven-layer architecture for defining how data is transmitted from computer to computer in a network.

Data transfer rates of local area networks (LANs) are typically below 100 Mbps.

In the context of different network types,a(n) _____ is designed to handle data communication for multiple organizations in a city and sometimes nearby cities as well.

In the context of different processing configurations,a(n) _____ processing system was justified because data-processing personnel were in short supply,hardware and software were expensive,and only large organizations could afford computers.

The process of deciding which path the data takes on a network is called _____.

The most common n-tier architecture is the three-tier architecture.

In the context of a communication medium,what is the difference between a point-to-point and a multipoint system?

Ethernet is a standard communication protocol embedded in software and hardware devices used for building a local area network (LAN).

A(n) _____ is a collection of binary digits,including message data and control characters for formatting and transmitting,sent from computer to computer over a network.

What are the disadvantages of centralized routing?

Terrestrial microwave systems use ground-based microwave transmitters and receivers for transmitting data.