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  1. Home
  2. Cisco Certification
  3. 400-007 Exam
  4. Cisco.400-007.v2025-12-06.q401 Dumps
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Question 96

Over the years, many solutions have been developed to limit control plane state which reduces the scope or the speed of control plane information propagation. Which solution removes more specific information about a particular destination as topological distance is covered in the network?

Correct Answer: B
Comprehensive and Detailed Explanation From Exact Extract of Design Expert (CCDE) Summarization reduces control plane state by abstracting detailed route information. As packets move further away from the destination subnet, the network advertises summarized prefixes instead of individual host or subnet routes, minimizing control plane overhead and routing table size. This helps scale large networks and improves convergence times.
While aggregation and summarization are related, summarization specifically refers to the propagation of route prefixes and their abstraction - making it the precise fit for this question.
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Question 97

You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?

Correct Answer: B
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Question 98

Drag and drop the correct mitigation methods from the left onto the corresponding types of attack on the right

Correct Answer:

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Question 99

In a redundant hub-and-spoke design with inter-spoke links, load oscillation and routing instability occur due to overload conditions. Which two design changes improve resiliency? (Choose two)

Correct Answer: D,E
Comprehensive and Detailed Explanation:
To reduce oscillation and improve resiliency:
* D: Increasing unequal-cost multipath (UCMP) paths allows the routing protocol to load-share over more than one path, preventing traffic congestion from oscillating between nodes.
* E: Dual links to each site improve bandwidth and failover options, reducing reliance on overloaded peers.
Other options:
* A: Increasing redundant paths may worsen convergence complexity and doesn't solve oscillation.
* B: Removing inter-spoke links reduces redundancy.
* C: Increasing convergence timers delays recovery and stability.
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Question 100

An architect prepares a network design for a startup company. The design must meet business requirements while the business grows and divests due to rapidly changing markets. What is the highest priority in this design?

Correct Answer: C
* C (Scalable):For rapidly growing or contracting businesses, scalability is the highest priority to ensure that the network can adapt to changes in size, services, and demand without major redesigns.
Other options explained:
* A: Hierarchical design improves structure but does not guarantee scalability.
* B: Modularity aids scalability but is a design approach, not the ultimate priority.
* D: A dedicated core is part of hierarchical designs but not always essential for startups.
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