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modc_updated_hw - Homework Module C More on...

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Homework Module C More on Telecommunications Last Name: ____________________________________________________ First Name: ____________________________________________________ Due Date: __________________________________ Test Your Understanding 1. a) How many simultaneous voice calls can a T3 line multiplex? b) Explain frames and slots in time division multiplexing (TDM). c) How is a circuit allocated capacity on a TDM line? d) What is the advantage of TDM? e) What is the disadvantage? 2. a) What is the relationship between leased line circuits and trunk lines? b) Below about what speed are trunk lines point-to-point lines? c) What topology are SONET/SDH lines designed to use? d) What is the advantage of this topology? e) What does a SONET/SDH network do when there is a break in a line between switches? 3. a) How is ATM different from previous trunk line technologies? b) Why is ATM good for voice? c) Why is ATM ideal for use in the transport core of telecommunications carriers? 4. a) What is the worldwide signaling system for telephony? b) Distinguish between SS7 and C7.
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