If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

Question

Options

• AManual route summarization can only be done on autonomous system border routers.
• BManual route summarization must be done on all the backbone routers to be effective. Manual
• CManual route summarization is done on the ABRs. By default, automatic summarization is done;
• DManual route summarization is done on the ABRs. By default, no route summarization is done

• A
  4% (2)
• B
  4% (2)
• C
  8% (4)
• D
  84% (41)

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