Multiple choice

In the OSI Model, which of the following protocols reside at the Data Link Layer?

  1. ARP

  2. Netbios

  3. SMTP, FTP

  4. IP, AppleTalk

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A Correct answer
Explanation

ARP (Address Resolution Protocol) operates at the Data Link layer (or between Layer 2 and 3) to map IP addresses to MAC addresses. SMTP and FTP are Application layer protocols, while IP is a Network layer protocol.