Systems Security Certified Practitioner (SSCP) — Question 120

Within the OSI model, at what layer are some of the SLIP, CSLIP, PPP control functions provided?

Answer options

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

Correct answer: A

Explanation

The correct answer is A, Data Link, because SLIP, CSLIP, and PPP are protocols that operate at this layer, managing how data packets are formatted and transmitted over the network. The other options, Transport, Presentation, and Application layers, handle different aspects of data communication and do not encompass the control functions provided by these protocols.