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H12-821_V1.0 · Question #259
H12-821_V1.0 Question #259: Real Exam Question with Answer & Explanation
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Question
Which of the following is wrong about OSPF discarding directly?
Options
- AThe DD packet carries the LSA header information to describe the link state summary information
- BHello packets are used to discover and maintain neighbor relationships. On broadcast networks and NBLA networks, Hello packets are also used to elect DR and BDR.
- CThe DD packet contains all LSA information, which can be used to periodically synchronize link state database information between neighbors
- DThe two-way sending Hello packets between the two routers must be the same, otherwise neighbors cannot be established
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