单项选择题

Which of the following is the default SMTP port?（）

A.21
B.22
C.23
D.25

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单项选择题
Which of the following tools would a technician use to map a drive to a user’s machine?（）

A.SSH
B.NETUSE
C.NETSTAT
D.SSL
单项选择题
When updated, which of the following will allow network access to new users?（）

A. Route lists
B. ACLs
C. Firmware
D. Definitions
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