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Which Protocol Data Unit (PDU) name is used at the Network layer in the OSI model?

easy📝 Conceptual Q11 of 15
Computer Networks - OSI and TCP/IP Models
Which Protocol Data Unit (PDU) name is used at the Network layer in the OSI model?
ASegment
BFrame
CPacket
DBit
Step-by-Step Solution
Solution:

  1. Step 1: Recall OSI model layers and their PDUs

    The OSI model has seven layers. Each layer uses a specific PDU name. The Network layer is the third layer.

  2. Step 2: Identify the PDU for the Network layer

    The Network layer uses the term 'Packet' for its PDU, which contains logical addressing information.

  3. Final Answer:

    Packet -> Option C

  4. Quick Check:

    Network layer PDU = Packet [OK]
Quick Trick: Network layer always uses 'Packet' as its PDU name [OK]
Common Mistakes:
MISTAKES
  • Confusing Frame (Data Link layer) with Packet
  • Mixing Segment (Transport layer) with Packet
  • Thinking Bit is a PDU name at any layer

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