". VdoTips: Networking Multiple Choice Questions and Answers 90

Networking Multiple Choice Questions and Answers 90

446. A special high-speed line used by large corporations to support digital communications is known as
(A)satellite/air connection service lines
(B) cable modems
(C)digital subscriber lines
(D) T1, T2, T3 and T4 lines

447. An affordable technology that uses existing telephone lines to provide high-speed connections is called ________.
(A)ISDN
(B) microwave
(C)cable modem
(D) DSL Answer: D

448. The capacity of a communication channel is measured in
(A)bandwidth
(B) bit capacity
(C)baud rate
(D) data flow Answer: A

449. Voiceband ________
(A)allows the user to download messages
(B) is used for standard telephone communication
(C) is used in special leased lines to connect minicomputers and mainframes
(D) provides a high-speed communication channel Answer: B

450. The greatest capacity for data transmission happens in ________ devices.
(A)voiceband
(B) medium band
(C)broadband
(D) mega-band Answer: C