CompTIA Network+ (N10-007) — Question 55

According to the OSI model, at which of the following layers is data encapsulated into a packet?

Answer options

• A. Layer 2
• B. Layer 3
• C. Layer 4
• D. Layer 5
• E. Layer 6

Correct answer: B

Explanation

The correct answer is B, Layer 3, because this layer is responsible for packetizing data for transmission across networks. Layer 2 deals with frames, Layer 4 manages segments, and Layers 5 and 6 are focused on session and presentation aspects, respectively, and do not handle packet encapsulation.