Cisco - Reliable 400-007 - Cisco Certified Design Expert (CCDE) Written Exam 100% Correct Answers

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To prepare for the Cisco 400-007 Exam, candidates are recommended to have several years of experience in network design and implementation. It is also recommended to attend Cisco training courses and review study materials provided by Cisco to ensure a thorough understanding of the exam topics.

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Cisco Certified Design Expert (CCDE v3.0) Written is a certification exam offered by Cisco Systems for network design experts who want to advance their knowledge and skills in the field of networking. 400-007 Exam is designed to validate the knowledge and skills of experienced network architects and engineers who are responsible for designing and implementing complex network solutions. The CCDE v3.0 exam evaluates the knowledge of candidates in the areas of network design methodologies, network protocols, network security, infrastructure services, and network optimization.

Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q129-Q134):

NEW QUESTION # 129
The network designer needs to use GLOP IP addresses in order to make them unique within their ASN.
Which multicast address range should be used?

Answer: C

Explanation:
GLOP addressing is defined in RFC 2770. It assigns globally unique multicast addresses based on an organization's ASN by mapping the 16-bit ASN into the middle two octets of the 233.0.0.0/8 address space.
* 233.0.0.0/8 is specifically reserved for GLOP addressing.
* The uniqueness of the address is derived from the assigned ASN.
Why other options are incorrect:
* A: 232.0.0.0/8 is SSM address space.
* C: 239.0.0.0/8 is for administratively scoped multicast.
* D: 224.0.0.0/24 is reserved for local multicast (link-local scope).
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NEW QUESTION # 130
A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN EVPN data center within the same location. The networks are joined to enable host migration at Layer 2. Which activity should be completed each time a legacy network is migrated?

Answer: B

Explanation:
* B (Configure VXLAN VNID): Each VLAN being migrated must be mapped to a VXLAN VNID for integration into the EVPN fabric. This allows the legacy VLAN to participate in the VXLAN-based Layer 2 overlay and support host mobility.
Other options explained:
* A: Pruning is not directly related to migration activation.
* C/D: Type 2 routes (MAC/IP routes) and BGP advertisements happen automatically after proper VNID configuration.


NEW QUESTION # 131
Which three components are part of the foundational information security principles of the CIA triad?
(Choose three.)

Answer: B,C,D


NEW QUESTION # 132
As part of workspace digitization, a large enterprise has migrated all their users to Desktop as a Service (DaaS), by hosting the backend system in their on-premises data center. Some of the branches have started to experience disconnections to the DaaS at periodic intervals, however, local users in the data center and head office do not experience this behavior. Which technology can be used to mitigate this issue?

Answer: A

Explanation:
* Traffic shaping buffers excess traffic and smooths traffic bursts, which is essential for DaaS traffic sensitive to periodic link congestion across WAN circuits.
* It helps ensure consistent, predictable performance under fluctuating WAN conditions.
Why other options are incorrect:
* A: Tail drop leads to congestion and packet loss.
* C: WRED is used for congestion avoidance, but not ideal for real-time DaaS traffic shaping.
* D: Policing drops excess traffic instead of buffering, worsening DaaS disconnections.


NEW QUESTION # 133
Network design is the practice of planning and designing a communications network, but the used methodology or framework also plays a big part. What are two benefits of using an agile execution methodology? (Choose two.)

Answer: A,D

Explanation:
Customer-focused methodologies in agile emphasize collaboration and feedback, which leads to higher customer satisfaction.
Agile allows flexibility to incorporate ongoing changes throughout the project lifecycle, adapting the design as requirements evolve.


NEW QUESTION # 134
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