Exam 11: Voice and Data Delivery Networks

A(n)___________________________________ is a geographic area such as a large metropolitan area or part of a large state and determines whether a telephone call is local or long distance.

The Telecommunications Act of 1996 mandated that the existing local telephone companies,now called ____,must give CLECs access to their telephone lines.

Shortly after V.90 was introduced,_____________________________________________ introduced the V.92 modem standard.

The ATM _________________________ class of service is used for traffic that may experience bursts of data,and whose bandwidth range is roughly known,such as that of a corporate collection of leased lines.

Digital subscriber line comes in a variety of formats.Often collectively referred to as ____.

The local loop commonly consists of either four or ____ wires.

____ means that different icons on a computer screen represent common PBX functions such as call hold,call transfer,and call conferencing,making the system easier for operators to use.

The most popular example of a leased line service is the T-1.

Most residential DSL services are symmetric.

Only two wires are required to complete a telephone circuit.

What are the advantages and disadvantages of ATM?

A cable modem is a physical device that separates the computer data from the cable television video signal.

A ____ service is an all-digital connection that can transfer either voice or data at speeds up to 1.544 Mbps.

A V.92 modem can place a data connection on hold should someone call the user's telephone number.

Convergence has had a particularly noticeable impact on the telecommunications market.

The Internet can transfer conventional data and voice data.

____ means that a user calling into a company telephone system provides some form of data by speaking into the telephone,and a database query is performed using this spoken information.

A(n)____________________ is a high-speed communications service that allows high-speed access to wide area networks such as the Internet via a cable television connection.

On the other end of the local loop is the local telephone company's ____.

The ____________________ contains the equipment that generates a dial tone,interprets the telephone number dialed,checks for special services,and connects the incoming call to the next point.