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Exam JN0-347 topic 1 question 127 discussion

Actual exam question from Juniper's JN0-347
Question #: 127
Topic #: 1
[All JN0-347 Questions]

An OSPF hello packet has been sent, but bidirectional communication has not been established. What is the state of the OSPF adjacency?

  • A. Down
  • B. Init
  • C. Exchange
  • D. Loading
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Suggested Answer: A 🗳️
Down is the first OSPF neighbor state. It means that no information (hellos) has been received from this neighbor, but hello packets can still be sent to the neighbor in this state.
Incorrect Answers:
B: The Init state specifies that the router has received a hello packet from its neighbor, but the receiving router's ID was not included in the hello packet.
Reference:
http://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13685-13.html

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Clxxcv420
4 years, 1 month ago
Down is the correct answer. Refer to Cisco OSPF documentation: The init state indicates that a router sees HELLO packets from the neighbor, but two-way communication has not been established. https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13699-29.html
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