Exam N10-008 topic 1 question 647 discussion

D. Transport The layer responsible for end-to-end encryption in the OSI model is the Transport layer. The Transport layer (Layer 4) is where encryption protocols such as Transport Layer Security (TLS) or Secure Sockets Layer (SSL) are implemented to ensure secure communication between applications on different devices. These protocols provide data integrity, confidentiality, and authentication, thus achieving end-to-end encryption.

A. Presentation. The Presentation layer of the OSI model is primarily responsible for formatting, encrypting, and compressing data in a way that the Application layer can understand. Encryption, as a part of data formatting, is often implemented in this layer to ensure end-to-end secure communication between applications. While encryption can also be implemented at other layers of the OSI model, such as the Application layer (for application-specific encryption) and the Transport layer (for transport-level encryption such as SSL/TLS), the Presentation layer specifically deals with the syntax and semantics of the data to be exchanged and is where data encryption/decryption often takes place, allowing for secure communication between applications.

The presentation layer is responsible for translation, encryption, and compression of data. https://www.cloudflare.com/learning/ddos/glossary/open-systems-interconnection-model-osi/

Protocols like TLS provide end-to-end encryption for data in-transit. TLS operates at the Transport layer which is also known as the end-to-end or host-to-host layer. The presentation layer encrypts APPLICATION level data.

End-to-end encryption is typically associated with the Presentation layer (Layer 6

The Transport Layer is where end-to-end encryption primarily takes place. Protocols like TLS (Transport Layer Security) operate at this layer to secure data during transmission.

according to GPT.....End-to-end encryption is typically associated with the Presentation layer (Layer 6) and the Application layer (Layer 7) of the OSI model. However, the actual implementation of encryption often occurs at higher layers, such as the Application layer, where applications themselves can handle encryption. Therefore, in the context of the OSI model, the correct answer would be: B. Application

Just because encryption of data can occur at Layer 6, the question specifically uses the phrase "end to end". That clearly indicates an end to end encrypted connection between two machines which would occur at Layer 4.

The presentation layer is responsible for translation, encryption, and compression of data. Two communicating devices may be using different encoding methods, so layer 6 is responsible for translating incoming data into a syntax that the application layer of the receiving device can understand. https://www.cloudflare.com/learning/ddos/glossary/open-systems-interconnection-model-osi/#:~:text=The%20presentation%20layer%20is%20responsible,the%20receiving%20device%20can%20understand.

D. Transportation The Transport Layer provides mechanisms for reliable data transfer between two devices, and it can also offer encryption services to secure the data during transmission. A common example of end-to-end encryption at the Transport Layer is the use of protocols like Transport Layer Security (TLS) or Secure Sockets Layer (SSL) to secure data exchanged between applications over a network. As we are decapsulating, A. (Presentation) would have been the next closest.

presentation is correct. tsl/ssl, gzip, jpeg, html they all belong there

its A , C only starts, maintain and End connections

End-to-end encryption is typically associated with the Presentation (A) and Application (B) layers of the OSI model, as these layers handle encryption and decryption processes.

Presentation layer 100%

A is correct

I believe it is A