CompTIA Network+ N10-006 Q153

A network technician is utilizing a network protocol analyzer to troubleshoot issues that a user has been experiencing when uploading work to the internal FTP server. Which of the following default port numbers should the technician set the analyzer to highlight when creating a report? (Select TWO).

A. 20
B. 21
C. 22
D. 23
E. 67
F. 68
G. 69

Correct Answer: A,B
Section: Industry standards, practices, and network theory

FTP (File Transfer Protocol) is used for transferring files between an FTP client and an FTP server. FTP uses TCP Ports 20 and 21.