Which statement correctly describes PPP?

Which statement correctly describes PPP?

• A. PPP is a network-layer protocol
• B. PPP is unrelated to data link layer
• C. PPP establishes direct device-to-device communication over a point-to-point link
• D. PPP requires an intermediary host

Answer: (C)

PPP is a data-link layer protocol designed to create a direct connection between two devices over a point-to-point link. Its main job is to establish, maintain, and manage that direct link so packets can be exchanged between the two end devices, often over serial lines or dial-up connections. This is why the correct statement is that PPP establishes direct device-to-device communication over a point-to-point link—the essence of how PPP operates. Other options don’t fit because PPP operates at the data link layer, not the network layer, and is designed for direct connections between two endpoints rather than requiring an intermediary host.

PPP is a data-link layer protocol designed to create a direct connection between two devices over a point-to-point link. Its main job is to establish, maintain, and manage that direct link so packets can be exchanged between the two end devices, often over serial lines or dial-up connections. This is why the correct statement is that PPP establishes direct device-to-device communication over a point-to-point link—the essence of how PPP operates.

Other options don’t fit because PPP operates at the data link layer, not the network layer, and is designed for direct connections between two endpoints rather than requiring an intermediary host.