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
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"
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