Exam 14: Module C More on Telecommunications

In TDM,time is first divided into brief periods called ________.

A ring topology is attractive because it brings ________.

A ________ provides telephone service to customers.

In telephone wiring,there need to be four wires for each computer on the floor in ________.

Within a LATA,ILECs and CLECs interconnect at ________.

SONET/SDH uses a ________ topology.

Because of the curvature of the earth,microwave systems that must travel over long distances need ________.

Plenum wiring is needed for ________.

Which of the following is packet-switched?

Which of the following would a mail order company's customers prefer?

With 900 numbers,the ________ pays and pays ________ per minute than direct distance dialing.

PTTs were found in ________.

In TDM,a voice conversation gets the same ________ in each ________.

ATM provides quality-of-service for voice.

Incompatibilities between signaling systems in United States and Europe cause serious problems.

Which of the following was set up primarily to provide long-distance telephone service after the breakup of the Bell System in the early 1980s?

In the United States,IXCs provide telephone transmission service ________.

________ is/are widely used in Europe for PSTN signaling.

Deregulation is the least for ________.

In the United States,telephone customers can connect to a(n)________ carrier to receive telephone service.