15.5.3 Check Your Understanding – File Sharing Services Answers

1. How many connections are required by FTP between client and server?

  • 1
  • 2
  • 3
  • 4

Explanation: FTP requires two connections between the client and the server. One connection is over port 21 for client commands and server replies. The other connection is over port 20 for data transfer.

2. True or false? FTP data transfers take place from client to server (push) and from server to client (pull).

  • True
  • False

Explanation: The correct answer is True. Data transfer over FTP can take place in either direction, uploads from client to server, or downloads from server to client.

3. Which of these ports are used by FTP? (Choose two.)

  • 20
  • 21
  • 25
  • 110

Explanation: Ports 20 and 21 are used by FTP.

4. True or false? Resource sharing over SMB is only supported on Microsoft operating systems.

  • True
  • False

Explanation: The correct answer is False. Resource sharing over SMB is also supported by Apple Macintosh. Linux and Unix operating systems use a version of SMB called SAMBA.

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