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Cisco 400-007 exam is a written exam that consists of multiple-choice questions. 400-007 exam duration is 120 minutes, and the passing score is 825 out of 1000. 400-007 Exam can be taken at any authorized Pearson VUE testing center worldwide.

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Cisco Certified Design Expert (CCDE) certification is a highly respected credential in the field of networking. CCDE certified professionals are experts in designing complex and scalable network architectures that meet the business requirements of organizations. The CCDE certification exam tests the candidate’s knowledge and skills in network design, protocols, technologies, and best practices.

Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q139-Q144):

NEW QUESTION # 139
[Security, Automation, and Policy Integration in Design] The network has high CPU usage due to excessive inbound traffic impacting the control and management planes. What should be implemented?

Answer: B

Explanation:
#Explanation:
* A: Control Plane Policing (CoPP) protects the control plane by rate-limiting or dropping unnecessary or malicious traffic destined for the CPU. This is essential in preventing routing and management plane starvation under high traffic conditions.
Incorrect Options:
* B: Deep buffers help in data plane congestion, not control plane CPU usage.
* C: TCAM carving relates to hardware forwarding table allocations, not CPU protection.
* D: Modular QoS is valuable for traffic shaping but not specific to control plane protection.


NEW QUESTION # 140
An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A. providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds which are sourced at the central site and consist of 20 groups at Mbps each. Which service provider recommendation offers the most scalability?

Answer: C


NEW QUESTION # 141
A network attacker exploits application flaws to compromise critical systems in the organization with these objectives:
* Obtain sensitive data and export the data out of the network.
* Compromise developer and administrator credentials to potentially
What is the next step after application discovery is completed in Zero Trust networkings

Answer: B

Explanation:
https://www.cisco.com/c/en/us/solutions/collateral/enterprise/design-zone-security/zt-arch-guide.html


NEW QUESTION # 142
By monitoring the effects of the design variations, you can characterize the relative resilience of the design.
Which method involves disturbing the network by removing an active interface and monitoring how the change is handled by the network?

Answer: D


NEW QUESTION # 143
SDWAN networks capitalize the usage of broadband Internet links over traditional MPLS links to offer more cost benefits to enterprise customers. However, due to the insecure nature of the public Internet, it is mandatory to use encryption of traffic between any two SDWAN edge devices installed behind NAT gateways. Which overlay method can provide optimal transport over unreliable underlay networks that are behind NAT gateways?

Answer: B

Explanation:
DTLS (Datagram Transport Layer Security) is the most optimized overlay protocol for SDWAN deployments over public internet, especially when NAT traversal is required.
It combines security similar to TLS while using UDP, which handles packet loss, jitter, and reordering better than TCP-based TLS.
DTLS is natively supported in most SDWAN solutions for encrypted transport across NAT environments without complex configurations.
It allows optimal performance on unreliable or high-latency networks while maintaining strong security standards.
Why other options are incorrect:
A (TLS): Uses TCP, less suited for networks with packet loss or reordering.
C (IPsec): Requires additional NAT traversal mechanisms like NAT-T and may not handle unreliable underlay as effectively as DTLS.
D (GRE): Tunneling protocol without native encryption.


NEW QUESTION # 144
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