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      Question

      MPLS uses which concept for fast packet

      forwarding?
      A IP subnet masks Correct Answer Incorrect Answer
      B Label switching Correct Answer Incorrect Answer
      C MAC addresses Correct Answer Incorrect Answer
      D OSPF routing tables Correct Answer Incorrect Answer
      E VLAN tagging Correct Answer Incorrect Answer

      Solution

      MPLS forwards packets using short labels instead of full routing lookups.

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