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At which OSI layer is a destination IP address added to a PDU during the encapsulation process?

  • network layer
  • application layer
  • transport layer
  • presentation layer
Explanation & Hint:

A destination IP address is added to a Protocol Data Unit (PDU) during the encapsulation process at the “network layer,” which is also known as OSI Layer 3. The network layer is responsible for routing and forwarding data between different networks, and IP addresses are used to uniquely identify the source and destination of data at this layer.

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CCNA 1 v7 – ITN v7.02 – Modules 1 – 3: Basic Network Connectivity and Communications Exam Answers Full 100%