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Exam 350-401 topic 1 question 763 discussion

Actual exam question from Cisco's 350-401
Question #: 763
Topic #: 1
[All 350-401 Questions]



Refer to the exhibit. Why does the OSPF neighborship fail between the two interfaces?

  • A. The MTU is not the same.
  • B. The OSPF timers are different.
  • C. There is a mismatch in the OSPF interface network type.
  • D. The IP subnet mask is not the same.
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Suggested Answer: D 🗳️

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AbdullahMohammad251
7 months, 3 weeks ago
Selected Answer: D
D. correct, they're using different network IDs: 192.168.0.4/30 subnet on R2, and 192.168.0.0/29 subnet on R3. A. Incorrect, the maximum MTU size for Ethernet interfaces is 1500 bytes. Since the ping was successfully sent at 1500 bytes without fragmentation; this indicates that both interfaces are configured to support the same MTU size of 1500 bytes. B. Incorrect, both use the same hello & dead timers (respectively 10, and 40 sec.) C. Incorrect, both use the same network type, Broadcast.
upvoted 1 times
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ManjeshM
9 months, 1 week ago
Selected Answer: D
D is the right answer
upvoted 1 times
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[Removed]
12 months ago
Selected Answer: D
D is correct
upvoted 1 times
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slacker_at_work
1 year, 2 months ago
Selected Answer: D
Yes D indeed, but be aware that the subnet mask is checked by OSPF only if a broadcast network type is being used, such as Ethernet. If it is a point to point connection, then no such check will take place.
upvoted 4 times
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Jack2002
2 years, 1 month ago
Selected Answer: D
Answer D is correct
upvoted 1 times
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JackDRipper
2 years, 1 month ago
Selected Answer: D
R2: /30 vs R3: /29
upvoted 3 times
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