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多項選擇題

You are the network consultant from passguide.com. You have been asked for which two features of optical networks allow data to be transmitted over extremely long distances?（）

A.Encryption
B.Minimal signal loss
C.Bandwidth limits
D.No EMI

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多項選擇題

Which three are Cisco architectures?（）

A.collaboration
B.digital media
C.borderless networks
D.cloud computing
E.virtualization
F.consumerization

多項選擇題

What are five of the seven layers that are found in the OSI model?（）

A.application
B.protocol
C.session
D.transport
E.physical
F.gateway
G.data link

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