Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.

[单选题]Circuit-switching technology is used in Publish SwitchedTelephone Network(P

[试题]C．ircuit Switching is problematic because data communications is（），that is， it is typically dominated by short bursts of activity with long periods of（）.A．reliable B．bursty C．digital D．continuous A．latency B．transmission C．delay D．inactivity

[单选题]Circuit Switching is problematic because data communications is（6.1），that i

[单选题]Circuit Switching is problematic because data communications is（6.1），that i

[单选题]New technology was used in teaching. As a result, not only _____ , but students became more interested in the lessons.A． saved was teachers’ energy B. was teachers’ energy savedC． teachers’ energy was saved D. was saved teachers’ energy

This ___ advertisement misleadingly suggested that the product used advanced dig

Health information technology includes digital tools and services used to ____ p

[名词解释] Switching交换

[试题]() switching was invented in the late 1960s for data communications.A．Frame B．Link C．Packet D．Line

[单选题]Packet-switching wireless networks are preferable(66)when transmissions are(67)bemuse of the way charges are(68)per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are