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Exam 400-007 All Questions

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Exam 400-007 topic 1 question 204 discussion

Actual exam question from Cisco's 400-007
Question #: 204
Topic #: 1
[All 400-007 Questions]



Refer to the exhibit. This network is running OSPF as the routing protocol. The internal networks are being advertised in OSPF London and Rome are using the direct link to reach each other although the transfer rates are better via Barcelona. Which OSPF design change allows OSPF to calculate the proper costs?

  • A. Implement OSPF summarization to fix the issue
  • B. Change the OSPF reference bandwidth to accommodate faster links
  • C. Filter the routes on the link between London and Rome
  • D. Change the interface bandwidth on all the links
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Suggested Answer: B 🗳️
by ying162 at Feb. 13, 2023, 10:06 p.m.

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pizdecvsemu
Highly Voted 2 years, 3 months ago
Selected Answer: B
B fore sure.
upvoted 5 times
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kalulosu
Most Recent 4 months, 4 weeks ago
Selected Answer: B
I think correct answer is B. OSPF uses a default reference bandwidth when calculating link costs. If the link is very fast, the default reference bandwidth may not be used to accurately calculate the cost. By changing the reference bandwidth, OSPF can calculate accurate costs that reflect the actual speed of the link. As a result, faster routes will be selected.
upvoted 1 times
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Doobiedoo
10 months ago
Selected Answer: B
The reference bandwidth is a value in Mbps that we can set ourselves. By default, this is 100Mbps on Cisco IOS routers.
upvoted 1 times
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ying162
2 years, 4 months ago
Selected Answer: A
feedback for question203: I think steps 3 and 4 should be reversed
upvoted 1 times
Akkisingh
2 years, 1 month ago
https://www.networkcomputing.com/networking/6-imperatives-successful-sd-wan-deployments
upvoted 1 times
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Leon_Wang
2 years, 3 months ago
FYI with Q203 https://www.techtarget.com/searchnetworking/tip/7-steps-of-an-SD-WAN-implementation
upvoted 1 times
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C (25%)
B (20%)
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