Which of the following port numbers is used for a file transfer?
A.
21
B.
53
C.
68
D.
389
The Answer Is:
A
This question includes an explanation.
Explanation:
Port 21 is used by FTP (File Transfer Protocol) for file transfers. Port 53 is for DNS, port 68 is for DHCP, and port 389 is for LDAP. Understanding standard network ports is essential in CompTIA A+ Core 1 objectives, especially in networking and troubleshooting scenarios.
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