Which statements about OSPF packets are true? (Choose three.)
Which statements about OSPF packets are true? (Choose three.)
Hello packets can be sent once OSPF is enabled on an interface to establish communication with other OSPF routers, making statement A true. LS Request packets are indeed sent only after an adjacency is established to obtain more recent LSA information, which makes statement B true. LS Update packets contain detailed LSA information but are sent after an adjacency is established for proper synchronization, aligning with statement D. While LS Update packets include LSA details, their main role in synchronization occurs after adjacency is formed, and thus, C isn’t accurate in the context of the question.
Answer D is also correct. Both LSR and LSU are sent before Full state, i.e. before adjacency https://support.huawei.com/enterprise/ru/doc/EDOC1100082074 P.S. On huawei exam in multichoice questions there is no notice, that you should choose three answers, yoy have to choose just all the correct ones. And I heard, that there could be from 1 up to 4 correct answers.
ABD. C is not true because after an adjacency is established, routers use Database Description packets to describe their own LSDBs for LSDB synchronization.
"D" is correct for LSU will be sent after establishment yes, but "C"is not correct since database synchronization will be sent with DD packet not LSU.