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In FTP, which default port numbers are used by the server for the control connection and (in active mode) the data connection, respectively?

1783Medium DSSSB TGT Computer Science 0 replies

In FTP, which default port numbers are used by the server for the control connection and (in active mode) the data connection, respectively?

  • A20 and 21
  • B21 and 20
  • C22 and 23
  • D80 and 443
Correct answer: B

Explanation

FTP uses port 21 for commands (control) and port 20 for data transfer in active mode.
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