Networking Concepts第 1 / 100 题
Which layer of the OSI model is responsible for logical addressing and determining the best path for packets across an internetwork?
a.Layer 2 (Data Link)
b.Layer 1 (Physical)
c.Layer 3 (Network)
d.Layer 4 (Transport)
解析
Layer 3, the Network layer, handles logical addressing such as IP and makes routing decisions to move packets between networks. The Data Link layer uses physical MAC addresses for local delivery, while the Transport layer manages end-to-end segmentation. Routers operate primarily at Layer 3.
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