60 hours 39 minutes

Video Description

Protocols, FTP, TFTP, SFTP, SMTP, POP3 an IMAP This lesson focuses on ports that use the TCP and UDP communications protocol. This lesson discusses the following protocols: File Transfer Protocol (FTP): This is a TCP protocol and there is no encoding or overhead, it is insecure. Trivial File Transfer Protocol (TFTP): This is a UDP protocol which allows us to send to multiple clients at once. Secure File Transfer Protocol (SFTP): This is a TCP protocol that encrypts with Secure Shell (SSH) and is more secure than FTP. This lesson also discusses the following mail protocols:

  • Simple Mail Transfer Protocol (SMTP): Uses TCP; e mail between servers and from Outlook.
  • Post Office Protocol 3 (POP3): Uses TCP; e mail comes from client download from server. Typically copies and deletes.
  • IMAP: uses TCP, downloads from server to client and keeps a copy of the message on the server, it has more configuration ability than a POP3.

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CompTIA Network+

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Instructed By

Instructor Profile Image
Anthony Harris
Systems Analyst and Administrator at SAIC