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Exam NSE7_EFW-7.0 All Questions

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Exam NSE7_EFW-7.0 topic 1 question 17 discussion

Actual exam question from Fortinet's NSE7_EFW-7.0
Question #: 17
Topic #: 1
[All NSE7_EFW-7.0 Questions]

Which statement about the designated router (DR) and backup designated router (BDR) in an OSPF multi-access network is true?

  • A. Only the DR receives link state information from non-DR routers.
  • B. Non-DR and non-BDR routers form full adjacencies to DR only.
  • C. Non-DR and non-BDR routers send link state updates and acknowledgements to 224.0.0.6.
  • D. FortiGate first checks the OSPF ID to elect a DR.
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Suggested Answer: C 🗳️
by klapek at Jan. 5, 2023, 3:26 p.m.

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sbirare
9 months, 2 weeks ago
Selected Answer: C
Study guide page 282 DR or BDR sends LSA updates and ack on 224.0.0.5 All other routers sends LSA updates and ack on 224.0.0.6
upvoted 4 times
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nse_student
11 months ago
Selected Answer: C
C 100%
upvoted 2 times
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fosi130
12 months ago
C is correct
upvoted 1 times
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certifi46
1 year ago
Selected Answer: C
Study guide page 282
upvoted 2 times
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ciscodiscoo
1 year ago
Selected Answer: C
C appears to be the best option
upvoted 1 times
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Quetchup
1 year, 1 month ago
Selected Answer: C
Enterprise_Firewall_7.0_Study_Guide-Online.pdf p 282
upvoted 1 times
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Seph1
1 year, 3 months ago
Selected Answer: C
C - is only making sense.
upvoted 1 times
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chgook
1 year, 3 months ago
The OSPF network elects the router with the highest priority as the DR. If two or more routers are tied with the highest priority, the network elects the router with the highest OSPF ID. D is incorrect
upvoted 3 times
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johnnd
1 year, 4 months ago
Selected Answer: C
Some special IP multicast addresses are reserved for OSPF: 224.0.0.5: All OSPF routers must be able to transmit and listen to this address. 224.0.0.6: All DR and BDR routers must be able to transmit and listen to this address. https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/7039-1.html
upvoted 3 times
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tururu1496
1 year, 4 months ago
Selected Answer: C
C is correct. Although B looks right, it is not correct as they also form full adjacency with BDR.
upvoted 3 times
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klapek
1 year, 4 months ago
Selected Answer: C
224.0.0.6 is for all non DR routers so correct Fortigate first checks priority and after that it checks OSPF ID
upvoted 4 times
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