CompTIA Network+ (N10-009) — Question 468

Which of the following OSI model layers is responsible for determining the most efficient path for frame transfer?

Answer options

• A. 1
• B. 2
• C. 3
• D. 5

Correct answer: C

Explanation

The correct answer is C, as Layer 3 of the OSI model, known as the Network layer, is responsible for routing packets and determining the most efficient path for data transfer. Layers 1 and 2 deal mainly with physical and data link functions, while Layer 5 focuses on session management, not routing.