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Exam 1: Data Communications, data Networks,

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Question 21

Multiple Choice

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A dominant architecture in the business environment and the more recent Web-focused intranet trend is ________ computing.

A) Ethernet
B) GUI
C) token ring
D) client/server

E) B) and D)
F) None of the above

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Question 22

Multiple Choice

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The rapid conversion of consumer electronics to digital technology is having an impact on both the Internet and corporate intranets.Two examples of this trend are ________.

A) server farms and DVDs
B) power workgroups and server farms
C) DVDs and CD-ROMs
D) digital versatile disks and digital still cameras

E) B) and C)
F) A) and C)

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Question 23

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Developing switching systems with the capacity and rapid response to support the demand requirements with the increased use of fiber optic transmission is no longer a challenge.

A ________ is a physical facility that provides the infrastructure to move data between connected networks.

The growth of ________ enhances the ability of employees to take their business context with them as they move about,resulting in the ability to use enterprise information resources and services from virtually anywhere.

Data communications deals with the transmission of signals in a reliable and efficient manner.

In order for data processing devices to communicate certain conventions must be decided on.These requirements can collectively be termed ________.

An ________ extends a company's intranet out onto the Internet to allow selected customers,suppliers,and mobile workers to access the company's private data and applications.

Individual hosts and LANs are connected to an Internet Service Provider through a ________.

Each IP packet includes an unique numeric address of the destination host.This address is referred to as an ________.

Three different forces have consistently driven the architecture and evolution of data communications and networking facilities: traffic growth,development of new services,and ________.

There is a potential for error in all communication systems,therefore,_________ and correction are required in circumstances where errors cannot be tolerated.

DWDM enables capacities of ________ per second.

Communicating across arbitrary,multiple,packet-switched networks is ________.

Convergence refers to the merger of previously distinct telephony and information technologies and markets.

Networks that generally cover a large geographical area,require the crossing of public right-of-ways,consist of a number of interconnected switching nodes, and rely on circuits provided by a common carrier are ________.

In situations in which an information exchange is interrupted due to a fault somewhere in the system,________ techniques are needed to either resume activity at the point of interruption or to restore systems to their state prior to the beginning of the exchange.

The need to make efficient use of transmission facilities that are typically shared among a number of communicating devices is referred to as ________.

________ involves moving voice into a data infrastructure,integrating all the voice and data networks inside a user organization into a single data network infrastructure,and then extending that into the wireless arena.

__________ is required to assure that the source does not overwhelm the destination by sending data faster than they can be processed and absorbed.