A server technician needs to access a remote Unix server for administration. The technician has requested that ports 23, 25, and 161 be opened on the router. After the ports are opened, the technician is still unable to connect to the Unix server. Which of the following ports should be opened on the server to allow for remote administration?
A. TCP 21
B. TCP 22
C. UDP 69
D. TCP 3389
Answer: B. TCP 22
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