多項(xiàng)選擇題

Which of the following ports are used by default for web servers? （）(Select TWO)

A.80
B.110
C.123
D.143
E.443

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單項(xiàng)選擇題

A technician needs to troubleshoot connectivity between two devices located on the same network.
Which of the following BEST describes the type of protocol being used?（）

A.IGP
B. EIGRP
C. EGP
D. BGP

單項(xiàng)選擇題

Which of the following methods can move files in clear text and can be easily intercepted?（）

A.RSH
B.SNMP
C.FTP
D.TELNET