LO1 Know types of Network Systems and Protocols. Application Layer Protocols.

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Presentation transcript:

LO1 Know types of Network Systems and Protocols

Application Layer Protocols

Objectives By the end of this session you should be able to: – Describe the function of the application layer – Describe the common application layer protocols – Understand the function of ports

The function of the Application Layer These programs implement the functions performed by users to accomplish network tasks like internet access or This layer is not the application itself, but the protocols that are initiated by this layer End-user protocols such as HTTP, HTTPS, SMTP, DNS, and FTP work at this layer

Common application layer protocols DNS HTTP FTP LDAP POP3 SMTP IMAP4 DHCP

Application Layer Protocols and Ports

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