A+ Question of the Week: SMTP Connection

AplusQOW3Which of the following port numbers might be used in the securing of an Simple Mail Transfer Protocol (SMTP) connection between a TCP/IP device, such as a smartphone and the server? (Choose three.)

A. 25
B. 110
C. 143
D. 465
E. 587
F. 993
G. 995

Reveal Answer

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