A、X.25.
B、Asynchronous transfer mode (ATM).
C、VoIP.
D、Public Switched Telephone Network (PSTN).
更多“An alternative to plain old telephone service (POTS) would be:（）”相关的问题
A、A virtual link to area 0. B、OSPF summarization command. C、default - cost extension to the area command. D、no - summary extension to the area stub comm and. E、None of the other alternatives apply
A、Install a USB serial adapter B、Connect to a USB hub C、Use an external modem D、Use an Ethernet card
A、A.alternating red and yellow light B、B.alternating white and yellow light C、C.all-round white or yellow light D、D.all-round white light only
A、The breaker should be closed when one synchronizing lamp is dark and the other is bright B、The breaker should be closed when both synchronizing lamps are bright C、The frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the bus D、A portable phase sequence indicator must be used to verify the information from the lamps
A、The network is stable B、There is a flapping link or interface, and router C knows an alternate path to the network C、There is a flapping link or interf ace, and router C does not know an alternate path to the network D、EIGRP is not working correctly on router C E、There is not enough information to make a determination
A、Restore the files to their original location and select the Replace existing files option. B、Restore the files to their original location and select the Replace existing files if they are older than the backup files option. C、Restore the files to an alternate location. Copy the files to the shared folder and choose to overwrite the files with duplicate file names. D、Restore the files to an alternate location. Copy the files to the shared folder and choose not to overwrite thefiles with duplicate file names.
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