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4A0-C01 · Question #87
4A0-C01 Question #87: Real Exam Question with Answer & Explanation
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Question
What is the protocol number for OSPF in the IP header?
Options
- AOSPF uses TCP, so the protocol number is 6.
- BOSPF uses UDP, so the protocol number is 17.
- COSPF does not use IP.
- DOSPF has its own protocol number of 89.
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