Which two are protocols that belong in the OSI application layer?
- PNG
- DNS
- SMTP
- QuickTime
Explanation: The application layer of the OSI model provides an interface between applications protocols exchanging data between hosts. Protocols at the application layer include DNS, HTTP, SMTP, FTP, and IMAP.
Exam with this question: 15.1.4 Check Your Understanding - Application, Session, Presentation
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