SSCP · Question #1330
Which layer of the OSI model handles encryption?
The correct answer is A. Presentation Layer - L6. The Presentation Layer (Layer 6) of the OSI model is specifically responsible for handling data format translation, compression, and encryption/decryption services.
Question
Which layer of the OSI model handles encryption?
Options
- APresentation Layer - L6
- BApplication Layer - L7
- CSession Layer - L5
- DData Link Layer - L2
How the community answered
(27 responses)- A89% (24)
- B7% (2)
- D4% (1)
Why each option
The Presentation Layer (Layer 6) of the OSI model is specifically responsible for handling data format translation, compression, and encryption/decryption services.
The Presentation Layer (Layer 6) ensures that data is in a format that the receiving application can understand, performing functions like data encryption, compression, and conversion.
The Application Layer (Layer 7) provides network services to the end-user application itself, not primarily general data encryption.
The Session Layer (Layer 5) manages the establishment, maintenance, and termination of communication sessions between applications, but it does not perform encryption.
The Data Link Layer (Layer 2) handles frame transmission and error detection across a physical link, not end-to-end encryption for application data.
Concept tested: OSI Presentation Layer functions
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/osi-model-overview
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