A network administrator needs to allow employees to securely upload files to a remote server. Which of the
following should be allowed on the firewall?
A.
20
B.
21
C.
22
D.
161
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C. port 22 is SFTP.
20 = FTP data transfer
21 = FTP control
161 = SNMP
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yes. 22 should be the secure port for data upload used by scp or sftp.
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