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Which one of the following is not true about SONET?(a) frames of lower rate can be synchronously time-division multiplexed into a higher-rate frame(b) multiplexing is synchronous TDM(c) all clocks in the network are locked to a master clock(d) STS-1 provides the data rate of 622.080MbpsI got this question in a job interview.This intriguing question comes from SONET in chapter Wireless LAN’s, Electronic Mail and File Transfer of Computer Network

Answer»

The CORRECT option is (d) STS-1 provides the DATA rate of 622.080Mbps

Explanation: In SONET, STS-N stands for Synchronous TRANSPORT Signal LEVEL-N. STS-1 level provides the data rate of 51.84 Mbps, and STS-12 provides a data rate of 622.080 Mbps.



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