N10-009 · Question #389
N10-009 Question #389: Real Exam Question with Answer & Explanation
The correct answer is B: Network. The Network layer (Layer 3) of the OSI model uses a connectionless protocol for packet delivery. The most common protocol at this layer is IP (Internet Protocol), which is connectionless. It sends packets without establishing a dedicated connection between the sender and receiver
Question
Which of the following is the OSI model layer that uses a connectionless protocol for packet delivery?
Options
- APhysical
- BNetwork
- CTransport
- DApplication
Explanation
The Network layer (Layer 3) of the OSI model uses a connectionless protocol for packet delivery. The most common protocol at this layer is IP (Internet Protocol), which is connectionless. It sends packets without establishing a dedicated connection between the sender and receiver, meaning there is no guaranteed delivery or error recovery at this layer - those responsibilities are handled by higher layers, such as the Transport layer.
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