Which OSI layer header is rewritten with new addressing information by a router when forwarding between LAN segments?

Questions BankCategory: CCNA CyberOpsWhich OSI layer header is rewritten with new addressing information by a router when forwarding between LAN segments?
ITExamAnswers Staff asked 1 month ago
Which OSI layer header is rewritten with new addressing information by a router when forwarding between LAN segments?

  • Layer 2
  • Layer 3
  • Layer 4
  • Layer 7

Explanation: When a router forwards traffic between LAN segments it encapsulates the Layer 2 frame to determine the Layer 3 path. Once the Layer 3 path is determined, the router encapsulates the Layer 3 packet in a new Layer 2 frame with new Layer 2 addressing infomation for the destination LAN segment.

More Questions: CCNA Cyber Ops (v1.1) – Chapter 5 Exam Answers


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