When you choose to read your e-mail using an e-mail client, your e-mail client interacts with which OSI layer?

When you choose to read your e-mail using an e-mail client, your e-mail client interacts with which OSI layer?
A . presentation
B . transport
C . application
D . session

View Answer

Answer: C

Explanation:

According to the OSI (Open Systems Interconnection) model, the application layer is responsible for providing the user with a means to access the network services, such as e-mail, file transfer, and virtual terminal access. An e-mail client, such as Microsoft Outlook or Apple Mail, operates at the application layer and interacts with the underlying network services to retrieve and manage e-mail messages.

Reference: Juniper Networks JNCIA-Junos Study Guide, Section 2.2 "The OSI Model"