单项选择题

On which of the following transmission media types can LC connectors be found?（）

A.UTP
B.STP
C.Coaxial
D.Fiber

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多项选择题
Which of the following protocols encrypt communication?（）

A.HTTPS
B.TELNET
C.SMTP
D.DNS
E.SSH
单项选择题
Which of the following protocols would BEST grant the user secure access to a remote location?（）

A.VPN
B.FTP
C.POP3
D.DNS
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