Q. Each synchronous transfer signal is composed of

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Q. The movement of a signal from its optical source to its optical destination is the responsibilty of

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Q. POH stands for

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Q. SONET frame can carry information from a digitized voice

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Q. A SONET network, can be used as a high-speed backbone carrying loads from other networks such as

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Q. In Ring network, UPSR uses 2 rings for working lines and BLSR uses

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Q. SONET defines four layers: path, line, section and

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Q. STM stands for

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Q. The photonic layer corresponds to the physical layer of the

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Q. SONET transmission relies on

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Q. A section connecting two neighbor devices is called

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Q. A virtual tributary is a partial

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Q. A linear SONET network can be

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Q. In Sonet Frames, encapsulation may create two problems that are handled elegantly by

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Q. LOH stands for

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Q. BLSR stands for

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Q. In Sonet Network, the data is sent over the working line until it fails, is

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Q. When the traffic in a ring increases, the performance can be enhanced by

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Q. A unidirectional path switching ring (UPSR) is a unidirectional network with

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Q. Asynchronous Transfer Mode (ATM) network is a

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