多选题Why does the data communication industry use the layered OSI reference model (Choose two.)（）。AIt divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.BIt enables equipment from different vendors to use the same electronic components, thus saving research and development funds.CIt supports theevolution of multiple competing standards, and thus provides business opportunities for equipment manufacturers.DIt encourages industry standardization by defining what functions occur at each layer of the model.EIt provides a means by which changes in functionality in one layer require changes in other layers.
多选题
Why does the data communication industry use the layered OSI reference model (Choose two.)（）。
A
It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.
B
It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.
C
It supports theevolution of multiple competing standards, and thus provides business opportunities for equipment manufacturers.
D
It encourages industry standardization by defining what functions occur at each layer of the model.
E
It provides a means by which changes in functionality in one layer require changes in other layers.
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