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Exam JN0-664 topic 1 question 8 discussion

Actual exam question from Juniper's JN0-664
Question #: 8
Topic #: 1
[All JN0-664 Questions]

When using 0SPFv3 for an IPv4 environment, which statement is correct?

  • A. OSPFv3 only supports IPv4.
  • B. OSPFv3 is not backward compatible with IPv4.
  • C. OSPFv3 supports both IPv6 and IPv4, but not in the same routing instance.
  • D. OSPFv3 supports IPv4 only on interfaces with family inet6 defined.
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Suggested Answer: D 🗳️

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Sonu_860
3 months ago
D is correct
upvoted 1 times
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22cc424
3 months, 1 week ago
I believe the answer here is D. You need to enable inet6 to be able to do OSPFv3. As OSPFv3 uses the link-local address which wont be there if you don't have inet6 defined.
upvoted 1 times
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141f14b
6 months ago
Selected Answer: D
D is correct i tested in lab and OSPFv3 realm-ipv4-unicast neighborship is not coming up if the interface does not have family inet6 configured
upvoted 1 times
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zineeddine
10 months ago
Selected Answer: D
if you want to use OSPFv3 for IPv4 routing, you would typically configure the family inet6 option along with the family inet option to enable OSPFv3 to handle both IPv6 and IPv4 routing.
upvoted 4 times
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anonymonkey
10 months, 1 week ago
B https://community.cisco.com/t5/ipv6/ospfv3-basic-question/td-p/2372187 or https://www.ciscopress.com/articles/article.asp?p=3188198#:~:text=OSPF%20Version%203%20(OSPFv3)%2C,essentially%20the%20same%20for%20OSPFv3.
upvoted 1 times
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Jicks
1 year ago
Selected Answer: D
OSPF must require IPv6 on interface
upvoted 3 times
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