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Cisco 400-007 Exam - Topic 2 Question 73 Discussion

You are designing a new Ethernet-based metro-area network for an enterprise customer to connect 50 sites within the same city OSPF will be the routing protocol used. The customer is primarily concerned with IPv4 address conservation and convergence time. Which two combined actions do you recommend? (Choose two)
A) Use a multipoint Metro-E service for router connections and C) Use P2P links between routers in a hub-and-spoke design
B) Use a single address per router for all P2P links
D) Configure address aggregation at each site router
E) Determine which OSPF routers will be DR/BDR

Cisco 400-007 Exam - Topic 2 Question 73 Discussion

Actual exam question for Cisco's 400-007 exam
Question #: 73
Topic #: 2
[All 400-007 Questions]

You are designing a new Ethernet-based metro-area network for an enterprise customer to connect 50 sites within the same city OSPF will be the routing protocol used. The customer is primarily concerned with IPv4 address conservation and convergence time. Which two combined actions do you recommend? (Choose two)

Show Suggested Answer Hide Answer
Suggested Answer: A, C

by Lashonda at Mar 07, 2026, 01:45 PM

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Gregg
3 days ago
E is important for OSPF, but not top priority here. Focus on B and D!
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Shawnda
8 days ago
C could work, but I feel it complicates things. A simpler design is better.
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Lezlie
13 days ago
I agree, B is smart for conserving IPv4. D helps with routing too.
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Malinda
19 days ago
I think B and D are the best choices. Saves addresses and improves efficiency.
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Leota
24 days ago
I feel like A is also a good option for scalability.
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Lashaun
29 days ago
C could work too, but it might complicate things.
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Essie
1 month ago
I agree, B is crucial for IPv4 conservation. D helps with efficiency.
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Sheron
1 month ago
I think B and D are the best choices. Saves addresses and simplifies routing.
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Kimberlie
1 month ago
A and E could enhance convergence time. Important for performance.
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Essie
2 months ago
B and D make sense for address conservation. Less waste!
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Ora
2 months ago
I prefer A and C. Multipoint services can simplify connections.
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Jeff
2 months ago
I think B and D are solid choices. Saves addresses and improves efficiency.
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Yuette
2 months ago
A is interesting, but I think it complicates things unnecessarily.
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Brandon
2 months ago
Surprised B is even an option, seems too limiting!
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Sharita
4 months ago
C could work, but not sure it's the most efficient.
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Xuan
4 months ago
Totally agree with B! Saves a lot of IPs.
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Laura
4 months ago
B and D are the best options for address conservation.
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Irma
4 months ago
A seems like a good idea too, but not sure about the multipoint service.
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Sanda
5 months ago
Surprised that people overlook address aggregation, it's crucial!
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Christoper
5 months ago
C could work, but not sure about the hub-and-spoke design.
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Tenesha
5 months ago
Totally agree with B, saves a lot of addresses!
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Elvera
5 months ago
B and D are the best options for IPv4 conservation.
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Jenelle
5 months ago
I feel like determining DR/BDR roles is important, but it doesn't directly address the IPv4 conservation issue we're focusing on.
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Sueann
5 months ago
Address aggregation sounds familiar, but I can't recall how it specifically helps with OSPF convergence times.
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Claribel
6 months ago
I remember a practice question where we had to choose between hub-and-spoke designs and full mesh. Hub-and-spoke seemed more efficient for this scenario.
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Yuette
6 months ago
I think using a single address per router for all P2P links could help with address conservation, but I'm not entirely sure if that's the best option.
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