单项选择题

Which content network component maintains original source content and publishes content to the network edge?（）

A.Content switch
B.Content router
C.Content engine
D.Content Distribution Manager (CDM)

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Internet Protocol videoconferencing (IP/VC) provides which two business benefits? （）

A.Real-time discussions of patient information among remote medical teams
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D.Increased sales and customer satisfaction due to current product information disseminated simultaneously to a global sales force by headquarters

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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
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You are the network consultant from passguide.com. You should tell your clients Two technologies help them save much time from complex computing.（）

A.VPN
B.SCSI over IP
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