Dell EMC Associate – Information Storage and Management v5 — Question 35

Which layer of the OSI reference model provides logical end-to-end connections, sequencing, and integrity?

Answer options

• A. Transport
• B. Presentation
• C. Session
• D. Data Link

Correct answer: A

Explanation

The Transport layer is essential for providing end-to-end communication, which includes sequencing and error recovery, ensuring data is sent and received reliably. The Presentation layer is focused on data format translation and encryption, while the Session layer manages sessions between applications. The Data Link layer handles node-to-node data transfer and framing but does not deal with end-to-end connections.