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A router has received a packet destined for a network that is in the routing table. What steps does the router perform to send this packet on its way? Match the step to the task performed by the router.

CyberOps Associate (Version 1.0) - CyberOps Associate 1.0 Practice Final Exam Answers 003
CyberOps Associate (Version 1.0) – CyberOps Associate 1.0 Practice Final Exam Answers 003
Explanation & Hint:

  • Step 1: It de-encapsulates the Layer 2 frame header and trailer to expose the Layer 3 packet.
    • The router needs to remove the Layer 2 information to access the IP packet.
  • Step 2: It examines the destination IP address to find the best path in the routing table.
    • The router looks at the destination IP address contained within the Layer 3 packet to determine where to send the packet next.
  • Step 3: It encapsulates the Layer 3 packet into a new Layer 2 frame and forwards the frame out the exit interface.
    • After determining the best path, the router will encapsulate the Layer 3 packet in a new Layer 2 frame, which includes the new MAC address information for the next hop, and then sends it out through the appropriate interface.

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