Which of the following layers of TCP/IP model is used to move packets between the Internet Layer interfaces of two different hosts on the same link?

Question

Options

• AApplication layer
• BInternet layer
• CLink layer
• DTransport Layer

• A
  2% (1)
• B
  2% (1)
• C
  89% (39)
• D
  7% (3)

Explanation

The Link layer is correct because its specific role in the TCP/IP model is to deliver frames between two nodes that share a direct physical connection (the same link) - precisely the handoff point between Internet Layer interfaces on adjacent hosts. The Internet layer (B) handles logical addressing and routing across networks using IP, but it depends on the Link layer to perform the actual hop-to-hop delivery on each individual segment. The Transport layer (D) operates end-to-end between processes on source and destination hosts, handling segmentation and reliability, not same-link forwarding. The Application layer (A) is furthest from hardware and deals with application protocols like HTTP or DNS, having no involvement in packet movement at all.

Memory tip: Think "Link = Local" - the Link layer handles local delivery on the same cable or wireless segment, while the Internet layer handles global routing across many links.

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